Last Updated on: October 25, 2026

How to Grow Potatoes in the UK: Planting, Care and Harvesting

Growing potatoes is a rewarding way to produce a useful crop in a garden, allotment or large container. From tender new potatoes to substantial maincrop varieties for roasting and baking, there are options for different spaces and kitchens.

The main requirements are straightforward: healthy seed potatoes, a sunny position, suitable soil and enough water during active growth. Choosing the right variety and planting at an appropriate time will make the crop easier to manage.

In the UK, potatoes are normally planted during spring. First earlies provide an earlier harvest, while second earlies and maincrops extend the season.

This guide explains how to grow potatoes from planting through to harvesting, including chitting, container growing, earthing up, common problems and storing your crop.

Choose the Right Type of Potato

Potatoes are commonly grouped according to how long they take to mature.

These categories help you plan planting and harvesting, but they do not tell you everything about cooking qualities.

First Early Potatoes

First earlies are grown for an early harvest, often lifted while the tubers are relatively small and their skins are delicate.

They are useful for smaller gardens and containers because they occupy the space for less time than maincrop varieties.

They are generally best enjoyed fresh.

Second Early Potatoes

Second earlies follow the first early crop.

Some are particularly useful as salad potatoes, although cooking characteristics depend on the variety.

They can provide a useful balance between growing time and harvest size.

Maincrop Potatoes

Maincrops generally need a longer growing season and more space.

They can produce larger tubers and are often chosen for baking, roasting, chips or storage.

Select a variety suited to how you cook rather than assuming every maincrop performs equally well in every dish.

Buy Healthy Seed Potatoes

Seed potatoes are tubers supplied specifically for planting.

Choose certified seed stock from a reputable supplier to reduce the risk of introducing disease.

They are different from true potato seeds, which develop inside the plant’s berries.

Avoid using ordinary supermarket potatoes as your main planting stock. Their variety, health status and growing suitability may be uncertain.

Inspect purchased tubers and avoid planting those that are soft, badly damaged or visibly rotting.

Keep variety labels so you can compare growth, flavour and storage performance after harvest.

When to Plant Potatoes in the UK

Spring planting dates vary with location, soil conditions and variety.

Potato type	General planting window
First earlies	Late March into early April
Second earlies	Early to mid-April
Maincrops	Mid-April into early May

These are guides rather than fixed deadlines.

Plant later if your soil remains cold, saturated or difficult to prepare. Milder areas may allow earlier planting, particularly where protection is available.

Young shoots are vulnerable to frost. An exposed Yorkshire allotment may need a different timetable from a sheltered southern garden.

Avoid planting early simply to match someone else’s calendar.

What Is Chitting?

Chitting means encouraging seed potatoes to develop short shoots before planting.

Stand tubers in an egg box or shallow tray with the end carrying the most eyes facing upwards.

Keep them in a cool, bright, frost-free place.

The aim is short, sturdy shoots rather than long, pale growth produced in darkness.

Chitting can be useful for early potatoes, but it is not essential for every crop.

Handle sprouted tubers carefully when planting because shoots can snap.

Do not keep them in a warm, dark cupboard and expect strong growth.

Prepare a Sunny Growing Site

Choose an open position with useful sunlight and soil that drains freely.

Clear perennial weeds before planting. Once potato foliage becomes substantial, removing established weeds can be awkward.

Improve soil condition with well-rotted organic matter where appropriate.

Avoid working saturated soil or compacting the bed while preparing it.

Allow enough room between rows for maintenance and earthing up.

Where practical, move potato growing around the plot rather than repeatedly planting in the same ground. Rotation can help manage some problems, although it does not prevent every pest or disease.

How to Plant Potatoes in the Ground

Use individual planting holes or a trench.

A planting depth of around 15cm is a common approach for conventional growing.

Place seed potatoes with their shoots facing upwards and cover carefully.

Allow approximately:

• 30cm between early potatoes, with 60cm between rows.
• 37cm between maincrop potatoes, with 75cm between rows.

Follow supplier instructions where they differ.

Label each variety and record the planting date.

Water if needed to settle dry soil, but avoid adding water automatically to an already wet bed.

Growing Potatoes in Containers

Large containers are useful for patios, smaller gardens and plots where the soil is unsuitable.

Early varieties are often a practical choice.

Choose a container with drainage holes and enough compost volume for the number of seed potatoes.

A pot around 30cm wide and deep can accommodate one seed potato. Larger containers allow more flexibility, but overcrowding can reduce performance.

Container Planting Steps

1. Add a suitable layer of peat-free compost.
2. Position the seed potato with shoots upwards.
3. Cover with compost.
4. Water as needed.
5. Add more compost around developing stems as the plants grow.
6. Leave room below the rim for watering.

Place the container in a sunny position.

Do not assume that adding more seed potatoes always produces a larger harvest. Each plant needs sufficient root space, moisture and nutrients.

Growing Potatoes in Bags or Buckets

Potato bags and suitable buckets can work well if they provide adequate space and drainage.

Make sure excess water can escape.

Use a strong container that will remain stable when filled and exposed to weather.

Check compost regularly during growth. Bags and pots may dry faster than ground soil, particularly when foliage becomes large.

Avoid moving heavy containers unnecessarily once plants are established.

For a useful comparison, label each container with its variety and the number of seed potatoes planted.

At harvest, record the result rather than judging success only by the size of the foliage.

What Does Earthing Up Mean?

Earthing up means drawing soil around the developing stems to create a ridge.

It helps keep developing tubers covered and can protect young shoots when frost threatens.

Exposed tubers may turn green in the light, making them unsuitable to eat.

Earth up carefully without damaging stems or burying large amounts of foliage at once.

In containers, add compost gradually as growth develops, leaving sufficient foliage exposed.

Earthing up does not guarantee an enormous harvest. Its practical value is maintaining suitable cover around the crop.

If using a no-dig method, ensure the covering layer remains deep enough to exclude light from developing tubers.

Watering Potato Plants

Potatoes need adequate moisture during active growth, particularly when tubers are developing.

Check the soil during dry spells and water thoroughly when needed.

Repeated shallow watering may leave the root zone dry.

Container-grown potatoes usually need closer attention because their compost supply is limited.

Avoid alternating severe drying with heavy soaking where possible.

Equally, do not keep plants permanently waterlogged.

As the crop matures and foliage naturally declines, watering requirements change. Assess the plant rather than continuing the same routine until harvest day.

Feeding Potatoes

Soil preparation and a suitable growing medium provide the foundation.

Where supplementary fertiliser is needed, choose an appropriate product and follow its instructions.

Take account of nutrients already present in compost or added during bed preparation.

Container potatoes may need additional feeding as compost nutrients become depleted.

Avoid combining several products without checking their contents.

Large, lush foliage does not automatically mean a large tuber crop. Excessive feeding is not a substitute for suitable spacing, light and moisture.

Record applications so you can judge whether the routine was useful.

Protect Young Growth from Frost

Potato shoots can be damaged by frost even when the planted tubers remain below ground.

Watch forecasts as shoots emerge.

Use suitable temporary protection, such as fleece, or carefully draw soil around young shoots where appropriate.

Secure covers and adjust them as conditions improve.

Containers can sometimes be moved into a suitable protected position before severe cold, but avoid relying on an unheated greenhouse to remain frost-free.

If frost damages foliage, plants may recover, depending on the severity. Allow time to assess new growth rather than immediately discarding the crop.

Common Potato Problems

Blight

Potato blight can develop quickly during suitable weather.

Watch for rapidly spreading dark patches on leaves and stems.

Do not assume every brown leaf is blight. Obtain a reliable identification and follow appropriate crop-management advice.

Blight resistance varies between varieties, but resistance does not mean complete immunity.

Slug Damage

Slugs can damage underground tubers.

Check harvested potatoes carefully and record which varieties suffer most on your plot.

Avoid leaving a mature crop in the ground indefinitely if pest damage is increasing.

Common Scab

Scab can produce rough patches on tuber skins.

It is often mainly a quality issue, but severe damage can affect usefulness.

Growing conditions and variety influence susceptibility. Do not automatically add lime to a potato bed without knowing whether it is needed.

Yellowing Foliage

Natural maturity, drought, nutrient problems and disease can all cause yellow leaves.

Consider the timing and overall condition before deciding on a response.

When to Harvest Potatoes

Harvest timing depends on the variety, growing conditions and how you want to use the crop.

First earlies may be worth checking from around ten to twelve weeks after planting, although they can take longer.

Second earlies follow later, while maincrops generally need a longer season.

Treat packet timings as estimates.

Flowering is not a dependable harvest signal for every variety.

For early potatoes, gently inspect beside a plant or lift one sample to assess tuber size.

If the potatoes are too small, leave the remaining plants to develop.

How to Harvest Without Damaging the Crop

Use a fork carefully, starting well away from the plant’s base.

Loosen the soil before lifting and search thoroughly for remaining tubers.

Damaged potatoes are more likely to deteriorate in storage, so keep them separate for early use if sound.

Container harvests are straightforward: tip out the contents carefully and collect the potatoes by hand.

Inspect every harvest for green areas, rot and pest damage.

Do not eat green potatoes, potato leaves, stems or berries. The small green berries sometimes produced after flowering are not edible.

Storing Maincrop Potatoes

Early potatoes are usually best enjoyed soon after lifting.

For maincrops intended for storage, allow the crop to mature and the skins to become firm.

Choose suitable harvesting weather and allow surface moisture to dry before storing. Avoid prolonged exposure to light.

Brush off loose soil rather than washing storage potatoes.

Keep only sound, undamaged tubers.

Store in a cool, dark, frost-free place with ventilation. Suitable paper or hessian sacks can help exclude light while allowing air movement.

Inspect regularly and remove deteriorating tubers promptly.

Enjoy Your Home-Grown Potatoes

Choose cooking methods that suit the variety.

Waxy potatoes generally hold their shape well for salads and boiling.

Floury varieties can work well for mash, baking or roasting.

Some varieties offer a useful balance for several dishes.

Try cooking a small sample before preparing a large meal, particularly with a variety you have not grown before.

Record flavour and texture alongside yield. The most productive potato is not necessarily the one you will most enjoy eating.

Frequently Asked Questions

Can I Grow Potatoes in a Small Garden?

Yes. A suitable container with one healthy seed potato provides a manageable starting point.

Must I Remove Potato Flowers?

Routine flower removal is unnecessary for an ordinary home crop.

Does More Compost Always Mean More Potatoes?

No. Variety, container space, moisture and plant health also affect the result.

Can I Grow Potatoes for Christmas?

Prepared late-season seed potatoes can be grown for a later crop, but frost protection and suitable conditions are essential. It is less straightforward than a normal spring planting.

Why Are Some Potatoes Green?

Light exposure causes greening. Keep developing tubers covered and discard green potatoes.

Start with a Variety You Will Use

Growing potatoes successfully is about matching the crop to your space and providing steady care.

Choose healthy seed potatoes, plant into suitable conditions and allow enough room. Keep tubers covered, check moisture and harvest carefully.

A modest crop of potatoes you enjoy cooking is a useful result and a good foundation for the next season.

Keep smiling, keep shining, keep gardening with Ben.

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