Best Plants for Garden Borders in the UK: 30 Beautiful Choices for Year-Round Colour

Choosing the best plants for garden borders can completely transform your outdoor space.

Whether you’re creating a new flower border, improving an existing garden bed or looking for reliable plants that return year after year, there are plenty of beautiful options for UK gardens.

The secret to a successful border isn’t simply choosing the most colourful flowers.

It’s about combining plants that suit your soil, sunlight and available space while providing interest throughout the seasons.

Some plants produce spectacular flowers during summer. Others provide evergreen foliage during winter, attractive autumn seed heads or early spring colour.

A well-planned border can also support wildlife, attracting bees, butterflies and other beneficial insects.

Here at Gardening with Ben, I particularly enjoy experimenting with different planting combinations and seeing how they develop over time.

From spring bulbs and hardy geraniums to salvias, dahlias and colourful autumn flowers, there’s always something you can grow to improve your borders.

In this guide, we’ll explore 30 of the best plants for garden borders in the UK, including suitable choices for sunny gardens, shady areas, clay soil, small borders and low-maintenance planting schemes.

We’ll also cover how to arrange plants, when to plant them and how to keep your borders looking beautiful throughout the year.

What Makes a Good Garden Border Plant?

The best border plants combine attractive appearance with reliable garden performance.

Look for the following qualities.

Suitable Height and Spread

Choose plants that fit your border once mature.

Long Flowering Period

Long-flowering plants help maintain colour.

Attractive Foliage

Leaves provide interest between flowering periods.

Winter Structure

Evergreen shrubs and ornamental grasses can keep borders attractive during colder months.

Reliability

Hardy plants suited to your growing conditions usually require less attention.

Wildlife Value

Flowers rich in nectar and pollen can support pollinating insects.

30 Best Plants for Garden Borders in the UK

1. Hardy Geraniums

Hardy geraniums are among the most useful perennial border plants.

They produce attractive flowers and many varieties form spreading clumps.

Recommended Varieties

• Geranium ‘Rozanne’
• Geranium sanguineum
• Geranium macrorrhizum
• Geranium × cantabrigiense

Best Position

Sun or partial shade, depending on variety.

Height

Approximately 20–60 cm.

Why Grow Them?

Excellent for filling gaps and softening border edges.

Gardening with Ben Tip: Geranium ‘Rozanne’ is particularly useful for its long flowering period.

2. Salvia

Salvias are excellent for colourful summer borders.

Recommended Varieties

• Salvia nemorosa ‘Caradonna’
• Salvia nemorosa ‘Mainacht’
• Salvia ‘Amistad’
• Salvia ‘Hot Lips’

Best Position

Usually full sun.

Height

Approximately 30–120 cm, depending on variety.

Why Grow Them?

Provide colourful flowers and attract pollinators.

Gardening with Ben Tip: Check winter hardiness carefully. Some salvias need protection in colder UK gardens.

3. Lavender

Lavender is an excellent plant for sunny borders.

Botanical Name

Lavandula angustifolia and suitable cultivars.

Best Position

Full sun.

Soil

Well-drained.

Height

Approximately 30–90 cm.

Why Grow It?

Produces fragrant flowers and attractive evergreen foliage.

Gardening with Ben Tip: Lavender ‘Hidcote’ is excellent for compact planting and low hedges.

4. Nepeta

Nepeta is commonly known as catmint.

Best Position

Full sun or light shade.

Soil

Well-drained.

Height

Approximately 30–60 cm.

Why Grow It?

Produces attractive blue-purple flowers over a long period.

Gardening with Ben Tip: Cut back suitable varieties after their first flowering flush to encourage fresh growth.

5. Echinacea

Echinacea is a beautiful summer-flowering perennial.

Best Position

Full sun.

Soil

Well-drained.

Height

Approximately 60–100 cm.

Why Grow It?

Produces distinctive daisy-like flowers.

Wildlife Value

Attractive to pollinators, while seed heads can provide interest later in the year.

Gardening with Ben Tip: Avoid planting echinacea in cold, persistently wet soil.

6. Rudbeckia

Rudbeckia provides bright late-summer colour.

Best Position

Sun.

Height

Approximately 40–100 cm.

Flowering Time

Summer through autumn.

Why Grow It?

Produces cheerful yellow flowers with dark centres.

Gardening with Ben Tip: Rudbeckia fulgida ‘Goldsturm’ is a reliable perennial choice for many UK borders.

7. Hylotelephium

Hylotelephium, formerly included in Sedum, is excellent for late-season interest.

Best Position

Full sun.

Soil

Well-drained.

Height

Approximately 30–60 cm.

Why Grow It?

Produces attractive flower heads in late summer and autumn.

Wildlife Value

Excellent for late-flying pollinators.

Gardening with Ben Tip: Leave some flower heads standing during winter.

8. Astrantia

Astrantia produces delicate, star-like flowers.

Best Position

Partial shade.

Soil

Moisture-retentive but well-drained.

Height

Approximately 45–90 cm.

Why Grow It?

Excellent for cottage garden borders.

Gardening with Ben Tip: Astrantia combines beautifully with hardy geraniums and ferns.

9. Delphiniums

Delphiniums provide impressive height.

Best Position

Full sun.

Soil

Fertile and well-drained.

Height

Approximately 90–180 cm.

Why Grow Them?

Produce tall flower spikes in blue, purple, pink and white.

Gardening with Ben Tip: Support tall varieties and protect emerging growth from slugs.

10. Foxgloves

Foxgloves are traditional cottage garden favourites.

Botanical Name

Digitalis purpurea and other suitable species.

Best Position

Sun or partial shade.

Height

Approximately 60–150 cm.

Why Grow Them?

Produce beautiful flower spikes that attract bumblebees.

Important: Foxgloves are poisonous if eaten.

11. Lupins

Lupins produce colourful early-summer flower spikes.

Best Position

Sun or partial shade.

Soil

Well-drained.

Height

Approximately 60–120 cm.

Why Grow Them?

Excellent for traditional flower borders.

Gardening with Ben Tip: Check young plants regularly for slugs and aphids.

12. Phlox Paniculata

Garden phlox produces attractive clusters of fragrant flowers.

Best Position

Sun or partial shade.

Soil

Fertile, moisture-retentive but well-drained.

Height

Approximately 60–120 cm.

Why Grow It?

Excellent for summer colour and fragrance.

Gardening with Ben Tip: Provide good airflow to help reduce powdery mildew.

13. Achillea

Achillea is commonly known as yarrow.

Best Position

Full sun.

Soil

Well-drained.

Height

Approximately 40–90 cm.

Why Grow It?

Produces flat flower heads in yellow, pink, red and other colours.

Gardening with Ben Tip: Excellent for combining with ornamental grasses.

14. Verbena Bonariensis

Verbena bonariensis produces tall, airy flowering stems.

Best Position

Full sun.

Soil

Well-drained.

Height

Approximately 100–180 cm.

Why Grow It?

Its purple flowers attract butterflies and other pollinators.

Gardening with Ben Tip: Allow some plants to self-seed where appropriate, but remove unwanted seedlings.

15. Roses

Roses are among the most popular border plants.

Best Position

Usually full sun.

Soil

Fertile, moisture-retentive but well-drained.

Height

Varies considerably.

Why Grow Them?

Provide beautiful flowers, fragrance and structure.

Gardening with Ben Tip: Choose disease-resistant shrub roses suited to your available space.

16. Heuchera

Heucheras are excellent foliage plants.

Best Position

Partial shade.

Soil

Moisture-retentive but well-drained.

Height

Approximately 20–45 cm for foliage.

Why Grow Them?

Available with purple, bronze, lime, red and green leaves.

Gardening with Ben Tip: Use heucheras towards the front of borders for colourful foliage.

17. Hellebores

Hellebores provide beautiful flowers during winter and spring.

Best Position

Partial shade.

Soil

Fertile, well-drained.

Height

Approximately 30–50 cm.

Why Grow Them?

Excellent for early-season colour.

Gardening with Ben Tip: Combine hellebores with snowdrops and hardy cyclamen.

18. Bergenia

Bergenia produces large evergreen leaves.

Best Position

Sun or partial shade.

Height

Approximately 30–45 cm.

Why Grow It?

Provides attractive foliage and spring flowers.

Gardening with Ben Tip: Some varieties develop colourful foliage during colder weather.

19. Brunnera

Brunnera is excellent for shady borders.

Best Position

Partial shade.

Soil

Moisture-retentive but well-drained.

Height

Approximately 30–45 cm.

Why Grow It?

Produces delicate blue spring flowers and attractive foliage.

Gardening with Ben Tip: Brunnera ‘Jack Frost’ has beautiful silver-patterned leaves.

20. Hostas

Hostas are popular shade-loving foliage plants.

Best Position

Partial shade.

Soil

Moisture-retentive.

Height

Varies by cultivar.

Why Grow Them?

Provide large, attractive leaves in different shades of green, blue and gold.

Gardening with Ben Tip: Protect emerging leaves from slugs and snails.

21. Ferns

Ferns provide beautiful foliage and texture.

Recommended Types

• Dryopteris
• Polystichum
• Athyrium
• Asplenium

Best Position

Usually shade or partial shade.

Why Grow Them?

Excellent for woodland-style borders.

Gardening with Ben Tip: Combine ferns with hostas and hellebores.

22. Skimmia

Skimmia is a compact evergreen shrub.

Best Position

Partial shade.

Soil

Moisture-retentive, humus-rich and generally neutral to acidic.

Why Grow It?

Provides evergreen structure and attractive flower buds.

Gardening with Ben Tip: Choose a variety suited to your soil and available space.

23. Sarcococca

Sarcococca is commonly known as sweet box.

Best Position

Shade or partial shade.

Why Grow It?

Produces fragrant winter flowers and glossy evergreen foliage.

Gardening with Ben Tip: Plant near a pathway to enjoy its fragrance during winter.

24. Hebe

Hebes are popular evergreen shrubs.

Best Position

Sun or partial shade.

Soil

Well-drained.

Why Grow Them?

Provide evergreen foliage and attractive flowers.

Gardening with Ben Tip: Choose hardy varieties for colder and more exposed UK gardens.

25. Cornus

Some Cornus varieties provide colourful winter stems.

Recommended Variety

Cornus sanguinea ‘Midwinter Fire’.

Best Position

Sun or partial shade.

Why Grow It?

Produces striking orange, yellow and red winter stems.

Gardening with Ben Tip: Position against a darker background for the best winter display.

26. Ornamental Grasses

Ornamental grasses add movement and texture.

Recommended Types

• Calamagrostis
• Deschampsia
• Miscanthus
• Hakonechloa
• Carex

Best Position

Depends on variety.

Why Grow Them?

Provide attractive foliage and seed heads.

Gardening with Ben Tip: Combine grasses with echinacea and rudbeckia for a natural-looking border.

27. Dahlias

Dahlias provide spectacular summer and autumn colour.

Best Position

Full sun.

Soil

Fertile, well-drained.

Why Grow Them?

Available in an enormous range of flower shapes and colours.

Gardening with Ben Tip: In colder UK gardens, protect tubers from severe frost and winter wet.

28. Japanese Anemones

Japanese anemones provide beautiful late-season flowers.

Best Position

Sun or partial shade.

Soil

Moisture-retentive but well-drained.

Why Grow Them?

Produce pink or white flowers during late summer and autumn.

Gardening with Ben Tip: Allow space because established plants can spread vigorously.

29. Asters

Asters and related autumn-flowering genera provide excellent late colour.

Best Position

Sun.

Soil

Moisture-retentive but well-drained.

Why Grow Them?

Produce masses of daisy-like flowers.

Wildlife Value

Excellent for late-season pollinators.

Gardening with Ben Tip: Choose compact varieties for smaller borders.

30. Alliums

Ornamental alliums provide beautiful late-spring and early-summer flowers.

Best Position

Usually full sun.

Soil

Well-drained.

Why Grow Them?

Produce distinctive spherical flower heads.

Gardening with Ben Tip: Plant allium bulbs among perennials that will help conceal their fading leaves.

Best Plants for Sunny Garden Borders

Sunny borders offer numerous planting possibilities.

Recommended Plants

• Lavender
• Salvias
• Nepeta
• Echinacea
• Rudbeckia
• Achillea
• Roses
• Dahlias
• Alliums
• Verbena bonariensis

Planting Advice

Choose plants that enjoy sunlight and suit your soil conditions.

Water regularly during establishment.

Best Plants for Shady Garden Borders

Shady borders can look beautiful with suitable planting.

Recommended Plants

• Hostas
• Ferns
• Hellebores
• Brunnera
• Heucheras
• Astrantia
• Bergenia
• Sarcococca
• Skimmia

Gardening with Ben Tip

Use contrasting foliage colours and textures to create interest when fewer plants are flowering.

Best Low-Maintenance Border Plants

Some plants require relatively little attention once established.

Recommended Plants

• Hardy geraniums
• Bergenia
• Hylotelephium
• Nepeta
• Rudbeckia fulgida
• Hellebores
• Suitable ornamental grasses
• Compact evergreen shrubs

Best Advice

Choose plants suited to the growing conditions and allow enough room for mature growth.

Best Evergreen Plants for Garden Borders

Evergreen plants help provide structure during winter.

Recommended Plants

• Skimmia
• Sarcococca
• Hebe
• Lavender
• Bergenia
• Heuchera, depending on variety and conditions
• Evergreen ferns
• Suitable Carex varieties

Gardening with Ben Tip

Include evergreen plants throughout the border rather than grouping them all in one area.

Best Plants for Clay Soil Borders

Clay soil can support many beautiful border plants.

Recommended Plants

• Hardy geraniums
• Rudbeckia
• Bergenia
• Astrantia
• Japanese anemones
• Suitable roses
• Hemerocallis
• Persicaria

Important Advice

Clay soil can become waterlogged during winter.

Improve soil structure over time and choose plants suited to your drainage conditions.

Best Plants for Dry Soil Borders

Dry soil requires plants that tolerate reduced moisture once established.

Recommended Plants

• Lavender
• Nepeta
• Achillea
• Eryngium
• Hylotelephium
• Suitable salvias
• Stachys byzantina

Gardening with Ben Tip

Even drought-tolerant plants need watering while establishing.

Best Plants for Wildlife-Friendly Borders

Wildlife-friendly borders provide flowers, shelter and habitat.

Recommended Plants

• Lavender
• Salvias
• Nepeta
• Echinacea
• Rudbeckia
• Asters
• Foxgloves
• Verbena bonariensis
• Hylotelephium
• Pulmonaria

Best Advice

Include flowers from early spring through late autumn.

Best Border Plants for Year-Round Colour

A beautiful border should provide interest across several seasons.

Spring

• Hellebores
• Bergenia
• Brunnera
• Daffodils
• Tulips
• Alliums

Summer

• Roses
• Salvias
• Lavender
• Hardy geraniums
• Echinacea
• Delphiniums
• Phlox

Autumn

• Rudbeckia
• Asters
• Hylotelephium
• Dahlias
• Japanese anemones
• Ornamental grasses

Winter

• Sarcococca
• Skimmia
• Hellebores
• Evergreen ferns
• Cornus stems
• Bergenia foliage

How to Arrange Plants in a Garden Border

A successful border usually includes plants of different heights.

Back of the Border

Tall shrubs, delphiniums, foxgloves and ornamental grasses.

Middle of the Border

Roses, salvias, echinacea and rudbeckia.

Front of the Border

Lavender, nepeta, compact hardy geraniums and heucheras.

Island Borders

Position taller plants towards the centre.

Gardening with Ben Tip

Repeat some plants throughout the border to create a coordinated appearance.

How Far Apart Should Border Plants Be Planted?

Spacing depends on mature plant size.

Plant	Approximate spacing
Lavender	30–60 cm
Nepeta	40–60 cm
Salvia nemorosa	30–45 cm
Echinacea	40–50 cm
Rudbeckia	40–60 cm
Hardy geraniums	30–60 cm
Heuchera	30–45 cm
Hellebores	40–60 cm
Bergenia	40–60 cm
Hylotelephium	40–50 cm

These are general guidelines.

Always check the mature spread of the specific variety.

How to Create a Garden Border from Scratch

Step 1: Measure the Area

Record the length and depth.

Step 2: Check Sunlight

Identify sunny and shaded areas.

Step 3: Examine the Soil

Check drainage and texture.

Step 4: Remove Weeds

Clear persistent weeds before planting.

Step 5: Prepare the Soil

Loosen compacted soil where appropriate.

Step 6: Add Organic Matter

Use suitable compost to improve soil structure where beneficial.

Step 7: Position Plants

Arrange pots before planting.

Step 8: Check Mature Sizes

Allow suitable spacing.

Step 9: Plant Carefully

Keep plants at the correct depth.

Step 10: Water Thoroughly

Help plants establish.

Step 11: Mulch

Apply suitable mulch around plants.

Step 12: Maintain Regularly

Water, weed and monitor plants during establishment.

When Is the Best Time to Plant Garden Borders in the UK?

Spring

Excellent for many hardy perennials.

Summer

Possible with sufficient watering.

Autumn

Often ideal for planting hardy shrubs and perennials.

Winter

Some hardy container-grown plants can be planted when soil conditions allow.

Best Advice

Avoid planting into frozen or waterlogged soil.

How to Keep Garden Borders Looking Good

Watering

Water new plants regularly during dry periods.

Weeding

Remove unwanted plants before they establish.

Mulching

Use suitable mulch to retain moisture.

Deadheading

Remove faded flowers from plants that benefit from deadheading.

Pruning

Prune shrubs and perennials at the appropriate time.

Dividing

Divide overcrowded perennials when suitable.

Feeding

Apply fertiliser according to plant needs and soil conditions.

Supporting

Stake tall plants before they become top-heavy.

Common Garden Border Mistakes

1. Choosing Plants Only for Their Flowers

Foliage and structure matter too.

2. Ignoring Mature Size

Plants may become overcrowded.

3. Planting Too Closely

Crowding can reduce airflow.

4. Choosing the Wrong Plants for Shade

Sun-loving plants may struggle.

5. Ignoring Soil Drainage

Some plants dislike winter wet.

6. Forgetting About Winter

Include evergreen plants and winter interest.

7. Planting Only Summer Flowers

Add spring and autumn colour.

8. Forgetting to Mulch

Bare soil can encourage weeds.

9. Failing to Support Tall Plants

Some plants need staking.

10. Expecting Immediate Results

Borders often improve over several growing seasons.

Frequently Asked Questions About Garden Border Plants

What Are the Best Plants for Garden Borders in the UK?

Hardy geraniums, salvias, nepeta, lavender, rudbeckia, echinacea and suitable shrubs are excellent choices.

What Are the Best Low-Maintenance Border Plants?

Hardy geraniums, bergenia, hylotelephium and suitable ornamental grasses.

What Are the Best Plants for Sunny Borders?

Lavender, salvias, nepeta, echinacea and rudbeckia.

What Are the Best Plants for Shady Borders?

Hostas, ferns, hellebores, Brunnera and heucheras.

What Are the Best Evergreen Border Plants?

Skimmia, Sarcococca, lavender, bergenia and evergreen ferns.

What Are the Best Plants for Clay Soil Borders?

Hardy geraniums, rudbeckia, bergenia and suitable roses.

What Are the Best Plants for Dry Borders?

Lavender, nepeta, achillea and hylotelephium.

What Are the Best Flowers for Cottage Garden Borders?

Foxgloves, delphiniums, lupins, roses and hardy geraniums.

What Are the Best Flowers for Modern Borders?

Salvias, alliums, ornamental grasses and echinacea.

What Are the Best Border Plants for Bees?

Lavender, nepeta, salvias and hylotelephium.

What Are the Best Border Plants for Butterflies?

Verbena bonariensis, asters, echinacea and suitable single-flowered plants.

What Plants Flower for a Long Time?

Geranium ‘Rozanne’, suitable salvias and nepeta can provide long flowering periods.

What Are the Best Plants for Small Borders?

Compact lavender, heucheras, hardy geraniums and dwarf shrubs.

What Are the Best Tall Border Plants?

Delphiniums, foxgloves, ornamental grasses and Verbena bonariensis.

What Are the Best Plants for the Front of Borders?

Nepeta, compact lavender, heucheras and low-growing hardy geraniums.

What Are the Best Plants for the Back of Borders?

Tall perennials, shrubs and ornamental grasses.

What Plants Flower in Spring?

Hellebores, bergenia, Brunnera and spring bulbs.

What Plants Flower in Summer?

Roses, salvias, lavender, phlox and echinacea.

What Plants Flower in Autumn?

Rudbeckia, asters, hylotelephium and Japanese anemones.

What Plants Provide Winter Interest?

Sarcococca, Skimmia, Cornus and evergreen ferns.

How Many Plants Should You Put in a Border?

This depends on border size and mature plant spread.

How Far Apart Should Border Plants Be?

Follow spacing recommendations for each species and cultivar.

When Should You Plant Border Plants?

Spring and autumn are generally excellent times.

Should You Mulch Garden Borders?

Suitable mulch can help retain moisture and reduce weeds.

How Long Does a Garden Border Take to Establish?

Many borders develop substantially over two or three growing seasons.

Final Thoughts: Choosing the Best Plants for Garden Borders

Creating beautiful garden borders is one of the most rewarding parts of gardening.

With the right combination of plants, you can enjoy colourful flowers, attractive foliage and interesting structure throughout the year.

Hardy geraniums, salvias and nepeta are excellent for reliable flowering.

Lavender, echinacea and rudbeckia provide beautiful colour in sunny borders.

Hostas, ferns, hellebores and Brunnera are excellent for shaded areas.

Evergreen shrubs such as Skimmia and Sarcococca help provide winter interest.

And ornamental grasses add movement and texture.

The most important thing is to choose plants that suit your garden’s growing conditions.

Consider sunlight, soil type, drainage, available space and maintenance requirements.

Combine plants with different heights and flowering periods.

Include evergreen plants for structure and spring bulbs for early colour.

With a little planning and regular care, your garden borders can become beautiful features that provide enjoyment throughout the seasons.

Keep smiling, keep shining, keep gardening with Ben!