How to Grow Shallots in Raised Beds – Complete UK Guide

Growing shallots in raised beds is a fantastic way to produce delicious home-grown bulbs, especially if your allotment has heavy soil, poor drainage or limited growing space.

Shallots are among the easiest vegetables to grow from sets, and they’re particularly well suited to organised raised-bed gardening.

You don’t need an enormous vegetable plot to enjoy a successful harvest.

With a sunny raised bed, fertile soil and the correct planting spacing, you can grow a surprisingly useful crop of shallots.

And one of the best things about traditional shallots is that they multiply.

When you plant one small shallot set, it can eventually develop into a cluster containing several new bulbs.

That makes them an excellent choice when you want to get more from your growing space.

Here at Gardening with Ben, I enjoy growing shallots, onions and garlic on the allotment, and raised beds are an important part of how I organise my growing areas.

I particularly like being able to prepare individual beds for different vegetables, keep the paths tidy and avoid walking on the growing soil.

Raised beds can also be helpful during the colder months.

Here in Yorkshire, prolonged autumn and winter rainfall can make normal garden soil difficult to work.

When that happens, a properly designed raised bed can provide better growing conditions for shallots.

However, raised beds aren’t completely maintenance-free.

They can become waterlogged if they’re badly constructed.

They can dry out faster during spring and summer.

And if you plant your shallots too close together, you’ll limit the space available for their bulb clusters to develop.

That’s why planning the bed correctly is so important.

In this complete UK gardening guide, I’ll explain how to grow shallots in raised beds, from choosing the best position and preparing the soil to planting sets, watering, feeding and harvesting.

We’ll also look at raised-bed sizes, planting layouts, no-dig gardening, autumn planting and how to manage common problems.

Whether you’ve just built your first raised bed or you’ve been growing vegetables in them for years, let’s get those shallots planted!

Can You Grow Shallots in Raised Beds?

Yes!

Shallots grow very well in raised beds when they receive the correct conditions.

The Royal Horticultural Society recommends raised beds as an option where ordinary garden soil isn’t sufficiently free-draining.

This is particularly useful for gardeners with heavy clay soil.

Why Are Raised Beds Good for Shallots?

They can help improve drainage.

They make it easier to manage soil structure.

They allow you to organise your planting space.

And they reduce the need to walk on your growing soil.

Are Shallots Better in Raised Beds Than in the Ground?

Not automatically.

Shallots can grow equally well in a normal vegetable bed containing healthy, free-draining soil.

The main advantage of raised beds is greater control over the growing environment.

Are Raised Beds Good for Beginners?

Yes.

They make it easy to organise shallot planting rows, measure spacing and monitor the crop throughout the year.

Can You Grow Autumn Shallots in Raised Beds?

Absolutely, provided you’ve chosen varieties suitable for autumn planting and the bed drains correctly.

Gardening with Ben tip: If your allotment soil becomes difficult to work during winter, a raised bed is definitely worth considering. But don’t assume the word “raised” automatically means good drainage. The bed must be constructed properly.

Seven Benefits of Growing Shallots in Raised Beds

1. Improved Drainage

One of the biggest advantages is the potential for excess rainwater to drain away more easily.

This can be especially useful during autumn and winter.

2. Reduced Soil Compaction

When you can reach across the growing area from the path, there’s no need to walk on the soil.

This helps protect its structure.

3. Easier Weed Control

Weeds are often easier to spot and remove in clearly defined beds.

4. Better Organisation

You can dedicate different sections to shallots, onions, garlic and other vegetables.

5. Easier Soil Improvement

You can add mature compost to individual beds and monitor how the growing medium performs.

6. Good Use of Small Spaces

A carefully planned raised bed can hold a useful number of shallot sets.

7. Convenient Harvesting

When your shallots are ready, you can access the plants without walking across the growing soil.

What Size Raised Bed Is Best for Shallots?

Shallots can grow in raised beds of different shapes and sizes.

The best design depends on how much space you have.

Is a 1.2 Metre Wide Bed Suitable?

Yes.

A bed around 1.2 metres wide is very practical when you can reach it from both sides.

You can tend plants in the centre without standing on the soil.

Can You Use a 1 Metre Wide Bed?

Absolutely.

A narrower bed can be particularly useful on small allotments.

What About a Square Raised Bed?

Square beds can also work well.

A 1.2 m × 1.2 m raised bed is a good example.

How Long Should the Bed Be?

That depends on the available space.

Beds measuring 1.2 m × 2.4 m are a common practical size.

How Deep Should a Raised Bed Be?

A raised bed containing around 20–30 cm of suitable growing medium above open, free-draining soil can work well for shallots.

The roots may also grow into the soil underneath.

However, there isn’t one universal depth.

If your bed sits on paving or another hard surface, it needs a different drainage design and sufficient growing depth.

Do Shallots Need Very Deep Raised Beds?

Not usually.

Shallots have relatively limited root systems compared with some larger vegetables.

However, a reasonably generous soil depth helps maintain moisture, nutrients and healthy root growth.

How Many Shallots Can You Grow in a Raised Bed?

This is one of the most useful questions when you’re planning your allotment.

Traditional shallot sets are normally planted approximately 15–20 cm apart.

Rows are generally spaced 25–30 cm apart.

The number of plants depends on the width and length of your bed.

Example Shallot Planting Layouts

Raised-bed size	Example planting layout	Approximate sets
1 m × 1 m	3 rows × 5 sets	15
1 m × 2 m	3 rows × 10 sets	30
1.2 m × 1.2 m	4 rows × 6 sets	24
1.2 m × 2.4 m	4 rows × 12 sets	48

These examples assume approximately 20 cm between sets and 30 cm between rows, with reasonable clearance from the bed edges.

They’re suggested planting layouts, not guaranteed maximum capacities.

Can You Grow More Shallots by Planting Closer Together?

Possibly.

However, closer planting generally means smaller individual bulbs.

Is Wider Spacing Better?

If your goal is larger individual shallots, allowing slightly more room can be beneficial.

What Would I Recommend?

For beginners, use the normal 15–20 cm spacing.

It’s easier to manage and gives traditional shallots room to form clusters.

What Is the Best Soil for Shallots in Raised Beds?

Shallots prefer fertile soil that drains well.

However, the soil should also retain enough moisture to support healthy growth during spring and early summer.

What Should Good Raised-Bed Soil Be Like?

Ideally, it should be:

• Fertile.
• Free-draining.
• Moisture-retentive.
• Well structured.
• Free from serious perennial weeds.
• Suitable for healthy root development.

Is Topsoil Suitable?

Yes.

Good-quality topsoil can form the main part of a raised-bed growing medium.

Can You Add Homemade Compost?

Absolutely.

Mature garden compost helps improve soil structure and can supply nutrients.

Should You Fill a Bed Entirely with Compost?

I wouldn’t recommend filling an ordinary raised vegetable bed entirely with rich compost unless it’s part of a well-managed system specifically designed for that purpose.

A balanced growing medium containing suitable soil and mature organic matter is a sensible starting point.

Is Fresh Manure Suitable?

Avoid placing fresh manure directly around newly planted shallot sets.

Use suitable well-rotted manure or mature compost instead.

Does Soil pH Matter?

Shallots generally grow best in soil that isn’t strongly acidic.

If crops repeatedly perform poorly, a soil test can help identify whether the pH needs attention.

How to Prepare a Raised Bed for Shallots

Good preparation makes planting easier and can prevent problems later.

Step 1: Choose a Sunny Position

Select a raised bed that receives plenty of direct sunlight.

Step 2: Check the Drainage

Look for standing water after heavy rainfall.

If water remains trapped, investigate the drainage before planting.

Step 3: Clear Previous Crops

Remove finished vegetables and unwanted plant material.

Step 4: Remove Persistent Weeds

Pay particular attention to weeds such as bindweed and couch grass.

These can spread through raised-bed soil if not managed.

Step 5: Assess the Soil

Check for compaction, poor structure or excessive dryness.

Step 6: Add Mature Compost

The RHS suggests approximately a bucketful of well-rotted manure or garden compost per square metre when preparing shallot-growing soil where improvement is needed.

Adjust according to your soil’s existing fertility and organic matter.

Step 7: Avoid Digging Unnecessarily

If you’re using a no-dig method, you can improve the surface with mature organic matter rather than turning the entire bed over.

Step 8: Level the Surface

Use a rake to create an even planting area.

Step 9: Plan the Layout

Decide how many rows and sets will fit before planting.

Step 10: Label the Bed

Keep a record of the crop, variety and planting date.

Now your raised bed is ready.

How to Plant Shallot Sets in Raised Beds – Step-by-Step

Once your bed is prepared, planting shallot sets is straightforward.

Step 1: Choose Healthy Sets

Buy planting shallots from a reputable UK supplier.

Choose firm sets without visible mould, serious damage or decay.

Step 2: Check the Planting Season

Make sure the variety is suitable for autumn or spring planting.

Not every shallot set should be planted during winter.

Step 3: Prepare Your Planting Positions

Use a measuring stick or string to plan your rows.

Step 4: Leave Enough Space

Allow approximately 15–20 cm between traditional shallot sets.

Leave 25–30 cm between rows.

Step 5: Identify the Pointed End

The pointed end is the top of the shallot.

The flatter root-producing base goes downwards.

Step 6: Make a Shallow Planting Hole

Use your fingers or a hand trowel.

Step 7: Place the Set in the Soil

Position the root base firmly against the growing medium.

Step 8: Leave the Tip Showing

Plant the set so its pointed tip is just visible above the soil surface.

This is an important difference from planting garlic cloves.

Step 9: Firm Gently

Press the soil around the set without compacting it excessively.

Step 10: Continue Along the Row

Maintain your chosen spacing.

Step 11: Water In

Water after planting where appropriate.

Avoid saturating soil that’s already very wet.

Step 12: Add a Label

Record the shallot variety and date.

Step 13: Check for Bird Damage

Birds can pull newly planted sets from the soil before roots establish.

Step 14: Protect if Necessary

Suitable fleece or securely fitted wildlife-safe protection can help until the sets root.

Step 15: Keep the Surface Weed-Free

Remove weeds as they appear.

Step 16: Monitor Soil Moisture

Raised beds may become dry more quickly than surrounding ground.

Step 17: Watch for New Growth

Healthy sets should begin developing roots and green shoots as conditions allow.

Step 18: Avoid Unnecessary Disturbance

Once established, leave the developing bulbs in place until harvest.

Gardening with Ben tip: When planting shallots in raised beds, I like to arrange the sets across the bed before putting any into the soil. That way, you can see the spacing clearly and avoid running out of room halfway through.

How Deep Do You Plant Shallots in Raised Beds?

Shallot sets are planted relatively shallowly.

The pointed tip should remain just visible above the soil.

Should You Bury the Whole Shallot?

Generally, no.

The set needs good contact with the soil, but its pointed tip should remain visible.

Why Is Correct Depth Important?

Planting too deeply may delay emergence and cause problems in wet soil.

What If the Set Is Too Shallow?

It may become loose and fail to establish properly.

Birds may also pull it out.

Is This the Same as Garlic?

No.

Ordinary garlic cloves are generally planted with soil covering the tops.

Shallot sets are normally planted with their pointed tips showing.

Shallot Spacing in Raised Beds

Spacing is particularly important with traditional multiplying shallots.

Each set can produce a cluster containing several bulbs.

Standard Shallot Spacing

Allow 15–20 cm between sets.

Rows should generally be 25–30 cm apart.

Can You Use a Grid Instead of Rows?

Yes.

A grid layout is useful in square and rectangular raised beds.

Is Square-Foot Gardening Suitable?

You can use square-foot gardening principles, but make sure your chosen spacing accommodates bulb clusters.

Avoid overcrowding just to fill every available space.

Can You Plant Shallots Between Other Vegetables?

Yes, provided there’s enough space and the crops have compatible growing requirements.

However, remember that shallots have relatively shallow roots and don’t compete well with larger, vigorous plants.

Can You Grow Shallots Around the Bed Edges?

Yes, but leave adequate clearance from the timber or edging and make sure plants receive sufficient sunlight.

Growing Shallots in No-Dig Raised Beds

No-dig gardening is an excellent option for gardeners who want to improve soil structure and reduce unnecessary cultivation.

The basic principle is to avoid repeatedly turning the soil.

Instead, you improve the growing area by adding mature organic matter to the surface.

Can You Plant Shallots in a No-Dig Bed?

Yes.

Shallots can grow successfully in a well-established no-dig bed.

How Should You Prepare It?

Remove persistent weeds.

Spread suitable mature compost over the soil surface.

Avoid disturbing healthy soil unnecessarily.

How Do You Plant Sets?

Position the sets shallowly in the suitable growing layer, maintaining the correct depth and spacing.

Will the Shallots Grow Through Compost?

Yes, provided the material is mature and suitable for planting.

Does No-Dig Prevent All Weeds?

No.

Weeds can still germinate and perennial weeds may regrow.

Is No-Dig Better for Clay Soil?

It can be particularly useful, because reducing soil disturbance and adding organic matter can gradually improve structure.

However, drainage problems still need to be addressed.

Can You Grow Shallots in Raised Beds with Clay Soil?

Yes.

This is one of the reasons raised beds are so popular among UK gardeners.

Why Is Clay Soil Difficult?

Clay can hold water for long periods.

During winter, poorly drained clay may become saturated.

Why Is That a Problem for Shallots?

Prolonged waterlogging can damage roots and cause sets or bulbs to rot.

How Can Raised Beds Help?

Raising the growing surface can improve drainage and make the soil easier to work.

Will a Raised Bed Always Solve Waterlogging?

No.

If the bed has an impermeable base or water has nowhere to escape, it can still become saturated.

Should You Put a Plastic Sheet Under the Bed?

Avoid creating an impermeable barrier beneath an ordinary raised bed intended to drain into open soil.

What About a Bed on Concrete?

A raised bed on concrete needs a suitable drainage design and sufficient soil depth.

Is Autumn Planting Safe in Clay Soil?

Only when conditions are suitable.

If the soil remains persistently waterlogged, spring planting is often the safer option.

When to Plant Shallots in Raised Beds in the UK

Raised beds don’t fundamentally change the planting seasons.

Variety choice still matters.

Planting Shallots in February

Suitable late-winter sets may be planted when the soil is workable.

Planting Shallots in March

March is one of the main planting months for spring shallot sets.

Planting Shallots in April

April is also suitable for many spring varieties.

Planting Shallots in September

Some specially selected autumn varieties can be planted in September.

Planting Shallots in October

October can be an excellent month for autumn-suitable sets.

Planting Shallots in November

Some varieties can be planted during November where soil conditions allow.

What About December?

Selected winter planting varieties may be suitable.

However, avoid frozen or saturated ground.

What Is the Biggest Advantage of Autumn Raised-Bed Planting?

Shallots can begin establishing before spring.

You also make productive use of growing space during autumn and winter.

Should You Plant All Shallots in Autumn?

Not necessarily.

You could plant some suitable autumn sets and another group during spring.

This allows you to compare the harvests.

How to Look After Shallots in Raised Beds During Winter

Once your autumn shallots are planted, they generally need relatively little attention.

However, there are a few things worth monitoring.

Check Drainage

Look for standing water after prolonged rainfall.

Check for Bird Damage

Newly planted sets may be disturbed before they root.

Keep Weeds Under Control

Some weeds continue growing during mild winter weather.

Avoid Unnecessary Watering

Outdoor crops usually receive sufficient moisture from rainfall.

Don’t Worry About Slow Growth

Shallots often grow slowly during the coldest months.

Watch for Frost Heave

Freezing and thawing can occasionally lift shallowly planted sets.

Gently firm displaced healthy sets back into place.

What About Severe Frost?

Suitable overwintering varieties can tolerate normal seasonal conditions.

Temporary protection may help during unusually severe weather, especially with recently planted sets.

How Often Should You Water Shallots in Raised Beds?

Raised beds often drain more freely than ordinary garden soil.

That’s useful during wet weather but can become a disadvantage during prolonged drought.

Watering After Planting

Water in newly planted sets where appropriate.

Watering During Winter

Rainfall is often sufficient.

Avoid repeatedly watering wet ground.

Watering During Spring

As the leaves develop, check the soil moisture.

Watering During Early Summer

During prolonged dry spells, established shallots may benefit from additional watering.

How Should You Water?

Water the soil around the roots rather than repeatedly wetting the leaves.

Can You Water Too Much?

Yes.

Excessive moisture can encourage rot and poor root growth.

When Should You Stop Watering?

Reduce or stop watering as the bulbs mature and the foliage begins dying back.

This helps prepare the crop for harvesting and storage.

Gardening with Ben tip: Raised beds can dry out much faster than you expect. Just because the top looks dry doesn’t mean the roots need water, so check beneath the surface before watering.

What Is the Best Fertiliser for Shallots in Raised Beds?

Shallots prefer fertile soil.

However, that doesn’t mean they need constant feeding.

Is Homemade Compost Enough?

In many established beds, improving the soil with mature compost before planting may provide sufficient nutrients.

Should You Feed Immediately After Planting?

Not automatically.

If the soil is already fertile, extra fertiliser may be unnecessary.

What About Autumn-Planted Shallots?

Plants growing in nutrient-poor soil may benefit from an appropriate nitrogen-rich fertiliser during late winter.

Can You Use Chicken Manure Pellets?

Yes, according to the product instructions and the needs of your soil.

Avoid excessive applications.

Is Onion and Garlic Feed Suitable?

A fertiliser formulated for allium crops may be used where extra nutrients are needed.

Should You Use Tomato Feed?

It’s not essential.

Balanced nutrition is more important than applying several different products.

When Should Feeding Stop?

Avoid unnecessary heavy feeding as bulbs mature.

Can You Use Strulch or Mulch Around Shallots?

Yes, but be careful not to cover the young shoots or create persistently wet conditions.

Can You Mulch with Mature Compost?

Yes.

A suitable layer of mature compost can improve the soil and help manage moisture.

Can You Use Strulch?

A suitable straw-based mulch may help reduce evaporation and suppress weeds.

Follow the manufacturer’s instructions and keep it clear of the emerging tips.

What About Wood Chips?

Wood chips are excellent for paths around raised beds.

I wouldn’t bury newly planted shallot sets beneath a thick layer of coarse wood chips.

Should You Mulch Immediately After Planting?

Not necessarily.

If the soil is already wet, thick mulching may hold unwanted moisture near the surface.

Is Mulching Essential?

No.

Good soil, suitable watering and regular weeding can produce healthy shallots without a mulch layer.

Can You Grow Shallots, Garlic and Onions in the Same Raised Bed?

Yes.

Shallots, onions and garlic have broadly similar growing requirements.

However, they have different planting depths and spacing needs.

Shallots

Plant traditional sets approximately 15–20 cm apart, with pointed tips showing.

Onions

Ordinary onion sets generally need around 10–15 cm between bulbs, depending on the variety.

Garlic

Garlic cloves are normally planted with soil covering their tops.

Should You Use Separate Rows?

I’d recommend it.

Labelled rows make planting, feeding, harvesting and record-keeping easier.

Do These Crops Protect Each Other from Pests?

Don’t rely on that.

They’re all alliums and share several pests and diseases.

What About Crop Rotation?

Treat shallots, onions, garlic and leeks as members of the same crop rotation group.

Planting shallots immediately after onions isn’t a meaningful break from allium cultivation.

How to Prevent Weeds in a Shallot Raised Bed

Weeds can cause problems because shallots have narrow, upright leaves that don’t shade the ground very heavily.

Why Are Weeds a Problem?

They compete for sunlight, water and nutrients.

Should You Hoe Between Rows?

You can, but work carefully.

Shallot bulbs and roots can be damaged by deep hoeing.

Is Hand Weeding Better?

Often, yes.

Hand weeding can be particularly useful near developing bulbs.

Can Mulching Help?

Suitable mulch can reduce weed germination.

However, avoid smothering the shallot foliage.

What About Persistent Weeds?

Remove bindweed, couch grass and similar problem weeds before planting the bed where possible.

Common Problems with Raised-Bed Shallots

Although shallots are generally straightforward, problems can still occur.

1. Shallots Not Sprouting

Cold weather, damaged planting stock, waterlogging or disturbance may be responsible.

2. Yellow Shallot Leaves

Yellowing can indicate normal maturity, drought, root problems or disease.

3. Small Bulbs

Overcrowding, poor sunlight, inadequate watering or unsuitable nutrition may limit growth.

4. Bolting

Shallots sometimes produce flower stems prematurely.

This can be influenced by variety and temperature stress.

5. Onion White Rot

This is a serious fungal disease affecting shallots and other alliums.

It can cause yellowing, wilting and rotting roots.

6. Allium Leaf Miner

Larvae can damage shallot leaves and internal tissues.

Suitable insect-proof mesh may help prevent adult egg-laying.

7. Poor Drainage

Even raised beds can remain too wet if badly constructed.

8. Drought Stress

Raised beds may dry out during warm weather.

9. Bird Damage

Birds sometimes pull newly planted sets from the soil.

10. Weed Competition

Established weeds can reduce bulb development.

Why Are My Shallots Rotting in a Raised Bed?

If shallots begin rotting, investigate the cause before adding fertiliser or water.

Poor Drainage

A raised bed may hold water if its base is blocked.

Excessive Watering

Repeated watering of already wet soil can contribute to deterioration.

Damaged Planting Stock

Soft or unhealthy sets may fail to establish.

Onion White Rot

This serious disease can affect shallots and other alliums.

Look for yellowing and wilting foliage, decaying roots and potentially white fungal growth at the bulb base.

Can You Save Rotten Shallots?

Bulbs that have rotted extensively won’t recover.

What Should You Do?

Remove clearly decaying material carefully.

Investigate drainage and plant health.

Avoid moving possibly contaminated soil into healthy beds.

If you suspect onion white rot, don’t save affected bulbs for planting.

Will Rotating Crops Cure Onion White Rot?

No.

The pathogen can persist for many years, so a normal short crop rotation doesn’t eliminate it.

When Are Shallots Ready to Harvest from Raised Beds?

Many shallots are harvested during midsummer to late summer.

July and August are common harvesting months in the UK.

However, autumn-planted varieties may mature earlier.

What Are the Main Signs?

The leaves begin turning yellow.

The foliage naturally flops over.

Bulbs stop developing vigorous new growth.

Do You Need to Harvest Every Plant Together?

No.

Different varieties or planting dates can result in different maturity times.

Should You Wait Until Every Leaf Is Brown?

Not necessarily.

Inspect the crop as it naturally approaches maturity.

How to Harvest Shallots from Raised Beds

Harvesting raised-bed shallots is straightforward, particularly when the growing soil is reasonably loose.

Step 1: Check the Foliage

Look for natural yellowing and falling leaves.

Step 2: Prepare a Hand Fork

Use a small fork or garden fork.

Step 3: Loosen the Soil

Work carefully beside the bulb cluster.

Step 4: Lift the Shallots

Avoid pulling hard on the leaves.

Step 5: Separate the Clusters

Traditional multiplying shallots may produce several bulbs from each planted set.

Step 6: Remove Loose Soil

Brush it away gently without damaging the protective skins.

Step 7: Inspect the Harvest

Separate any damaged or diseased bulbs.

Step 8: Label the Varieties

Keep different shallot varieties separate if you’re comparing them.

Step 9: Begin Drying

Move healthy bulbs somewhere dry and well ventilated.

Step 10: Prepare for Storage

Once cured, store sound shallots in a suitable cool, dry, airy location.

How to Dry and Store Shallots After Harvesting

If you want your shallots to keep for months, curing is essential.

Where Should You Dry Them?

A dry, ventilated shed or sheltered drying area can work well.

Can You Dry Shallots in a Greenhouse?

Yes, provided it doesn’t become excessively hot and ventilation is adequate.

How Should You Arrange the Bulbs?

Spread them in a single layer on trays or drying racks.

How Long Should You Dry Them?

Around two weeks is a useful starting point in good conditions, although damp weather may require longer.

How Do You Know They’re Ready?

The outer skins and necks should become dry and papery.

Where Should You Store Them?

Choose somewhere cool, dry and ventilated.

What Containers Work Well?

Mesh bags, open baskets and shallow trays are suitable.

How Long Will Shallots Store?

Healthy, properly cured shallots often keep for at least six to eight months, depending on the variety and conditions.

What to Grow After Shallots in a Raised Bed

Once you’ve harvested your shallots, the raised bed becomes available for another crop.

This is one of the biggest advantages of organised allotment gardening.

Can You Grow Autumn Salad Leaves?

Yes.

Suitable lettuce, rocket and other salad leaves can be useful follow-on crops.

What About Spinach?

Some spinach varieties can be sown during late summer or early autumn.

Can You Grow Radishes?

Yes.

Radishes are often useful for quick crops.

What About Winter Vegetables?

Depending on the timing, you may be able to plant or transplant suitable hardy crops.

Should You Plant More Shallots Immediately?

Consider crop rotation.

Shallots share pests and diseases with other alliums.

Can You Add Compost Before Replanting?

Yes, if the bed needs improving.

However, don’t assume every crop requires large amounts of extra compost.

Ten Common Mistakes When Growing Shallots in Raised Beds

1. Assuming Raised Beds Always Drain Well

A badly constructed bed can still become waterlogged.

2. Filling the Bed with Unsuitable Soil

A poor growing medium can restrict root development.

3. Planting Too Closely Together

Traditional shallots need room to multiply.

4. Planting Sets Too Deeply

The pointed tips should generally remain visible.

5. Choosing the Wrong Variety for Autumn

Use varieties recommended for the planting season.

6. Forgetting About Summer Watering

Raised beds can dry out quickly during prolonged hot weather.

7. Overfeeding

Excessive fertiliser doesn’t guarantee larger bulbs.

8. Allowing Weeds to Take Over

Shallots compete poorly with established weeds.

9. Ignoring Crop Rotation

Shallots, onions, garlic and leeks share important pests and diseases.

10. Harvesting and Storing Before Bulbs Are Ready

Check maturity and cure healthy bulbs thoroughly.

Month-by-Month UK Shallot Raised-Bed Growing Calendar

Month	Raised-bed jobs
January	Check drainage and overwintering sets.
February	Prepare spring beds and begin suitable seed sowing under cover.
March	Plant spring shallot sets and check soil moisture.
April	Finish suitable planting and remove weeds.
May	Support strong leaf growth and watch for pests.
June	Water during prolonged drought and monitor bulb development.
July	Harvest mature shallot crops.
August	Lift later crops, cure bulbs and plan follow-on vegetables.
September	Prepare raised beds and buy suitable autumn sets.
October	Plant overwintering varieties in well-drained beds.
November	Check drainage and protect recently planted sets.
December	Monitor winter growth and avoid waterlogging.

The exact dates will vary with the weather, growing location and shallot variety.

Frequently Asked Questions About Growing Shallots in Raised Beds

Can you grow shallots in raised beds?

Yes. Shallots grow very well in raised beds containing fertile, well-drained soil.

Are raised beds better for shallots?

They can be especially useful where ordinary soil drains poorly, although healthy in-ground soil can grow equally good crops.

How deep should a raised bed be for shallots?

Around 20–30 cm of suitable growing medium above open soil can work well, although the exact depth depends on the bed and underlying ground.

What is the best soil for shallots in raised beds?

Fertile, well-drained soil improved with mature compost where needed.

Can you grow shallots in clay soil?

Yes, provided drainage is suitable. Raised beds can help where heavy clay becomes waterlogged.

Do shallots need full sun?

Yes. They generally perform best in a sunny location.

How far apart should shallots be planted?

Traditional sets should normally be spaced approximately 15–20 cm apart, with 25–30 cm between rows.

How deep do you plant shallot sets?

Plant them shallowly, leaving the pointed tips just showing.

How many shallots fit in a 1.2 m × 2.4 m raised bed?

An example layout using four rows of twelve sets allows approximately 48 sets at suitable spacing.

Can you grow shallots in square raised beds?

Yes. A grid layout can work particularly well.

Can you grow shallots in no-dig raised beds?

Yes. Plant into suitable mature compost or well-prepared soil without unnecessary cultivation.

Can you plant shallots in October?

Yes, if the variety is specifically suitable for autumn planting.

Can you plant shallots in March?

Yes. March is a main spring planting month.

Can shallots overwinter in raised beds?

Suitable varieties can overwinter successfully when soil conditions and drainage are appropriate.

Do shallots need watering in raised beds?

They may need watering during establishment or prolonged dry spells, especially in spring and early summer.

Do shallots need feeding?

They benefit from fertile soil, but extra fertiliser isn’t always necessary.

Can you use chicken manure pellets on shallots?

Yes, at appropriate rates where extra nutrients are required.

Can you use onion and garlic feed on shallots?

Yes. Suitable allium fertiliser can be used according to the product instructions.

Can you mulch around shallots?

Yes, but avoid burying young shoots or creating persistently wet conditions around the bulbs.

Can you use Strulch around shallots?

A suitable straw-based mulch can be used according to the manufacturer’s guidance, keeping emerging growth clear.

Can you plant shallots with onions and garlic?

Yes, with suitable spacing, but they share pests and diseases.

Why are my shallots not growing in a raised bed?

Possible causes include cold weather, waterlogging, drought, poor planting material, compaction and disease.

Why are my shallots turning yellow?

Yellowing can indicate natural maturity, drought, excess water, nutrient problems or disease.

Why are my shallot bulbs small?

Overcrowding, insufficient sunlight, poor soil fertility and drought are possible causes.

Why are my shallots rotting?

Poor drainage, excessive watering, damaged sets or disease may be responsible.

When are raised-bed shallots ready to harvest?

Usually during summer, commonly July or August, when the foliage yellows and falls over naturally.

Can you grow another crop after harvesting shallots?

Yes. Depending on timing, suitable salad leaves, radishes and other seasonal vegetables may be grown.

Can you save shallots from raised beds for planting next year?

Yes. Healthy, mature bulbs from appropriate traditional varieties can sometimes be saved for replanting.

Final Thoughts: Why Raised Beds Are Excellent for Growing Shallots

Growing shallots in raised beds is a fantastic way to produce delicious vegetables on your allotment or in your garden.

And if your normal growing soil becomes heavy and wet during winter, raised beds can be particularly useful.

They make it easier to improve the soil, organise your planting and keep the growing area tidy.

You can also avoid walking on the soil, which helps protect its structure.

However, the most important thing is preparing the bed properly.

Choose a sunny position.

Make sure excess water can drain away.

Use fertile soil and suitable mature compost.

Then plant healthy shallot sets during the correct season.

Remember to leave approximately 15–20 cm between traditional sets, with their pointed tips just showing above the soil.

Once planted, monitor the bed through autumn, winter and spring.

Keep weeds under control, check drainage and water during prolonged dry weather.

And don’t assume that adding more fertiliser will automatically improve your harvest.

Healthy soil, good spacing and suitable moisture are much more important.

When summer arrives and the foliage naturally begins yellowing and falling over, you’ll be ready to harvest your home-grown shallots.

Lift them carefully, separate the bulb clusters and allow them to dry thoroughly.

Then enjoy using them in your favourite recipes.

One of the best things about raised-bed gardening is being able to plan exactly what you want to grow.

You could dedicate one bed to shallots, another to garlic and another to your onions.

Or experiment with different varieties to discover which performs best in your growing conditions.

And once the shallots have been harvested, you can prepare the bed for another seasonal vegetable crop.

That’s what makes allotment gardening so enjoyable.

There’s always something growing, something to harvest and something new to try.

So if you’ve been wondering whether you can grow shallots successfully in raised beds, I’d definitely recommend giving them a go.

Keep smiling, keep shining, keep gardening with Ben!