Best Plants for Dry Soil in the UK: 30 Drought-Tolerant Choices

Finding the best plants for dry soil can completely transform a difficult area of your garden.

Whether you’re dealing with a sunny border that dries out quickly, sandy soil that struggles to retain moisture or an established tree that takes most of the available water, there are plenty of beautiful plants that can cope with challenging conditions.

Dry soil doesn’t mean you have to settle for a garden without flowers.

In fact, some of the most attractive garden plants naturally thrive in relatively dry conditions.

Lavender, salvias, nepeta, achillea and many ornamental grasses are excellent examples.

They can provide colourful flowers, attractive foliage and valuable nectar for pollinating insects.

However, it’s important to understand that drought-tolerant plants aren’t completely drought-proof.

Most plants need regular watering while establishing their root systems, and even established plants may struggle during prolonged periods of extreme heat.

Here at Gardening with Ben, I always believe in choosing plants that suit the conditions rather than constantly fighting against the soil.

In this guide, we’ll explore 30 of the best plants for dry soil in UK gardens, including flowering perennials, evergreen shrubs, ornamental grasses and plants for dry shade.

We’ll also look at how to improve dry soil, when to plant, how to water and how to create a beautiful drought-tolerant border.

What Is Dry Soil?

Dry soil is ground that regularly experiences low moisture levels, particularly during the growing season.

Several factors can cause this.

Sandy Soil

Sandy soil often drains quickly and may struggle to retain water.

Soil Beneath Trees

Established trees can absorb large amounts of moisture through their roots.

Sunny Borders

South-facing borders can dry out quickly during summer.

Shallow Soil

Areas with limited soil depth may hold less available water.

Rain Shadows

Soil beside walls, fences and buildings may receive less rainfall.

Compacted Soil

Compaction can prevent rainfall from soaking in effectively, sometimes causing water to run off.

Understanding why your soil becomes dry helps you choose suitable plants.

What Makes a Plant Drought-Tolerant?

Drought-tolerant plants have characteristics that help them cope with reduced water availability.

These may include:

• Deep or extensive root systems
• Small or narrow leaves
• Silvery or hairy foliage
• Waxy leaf surfaces
• Water-storing stems or leaves
• Seasonal dormancy during difficult conditions

Many Mediterranean plants are naturally adapted to dry summers.

However, some require excellent winter drainage, which is particularly important in the UK.

30 Best Plants for Dry Soil in UK Gardens

1. Lavender

Botanical name: Lavandula angustifolia

Lavender is one of the best plants for dry, sunny soil.

Its fragrant purple flowers attract bees and butterflies, while the evergreen foliage provides year-round structure.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 30–90 cm
• Flowering: Summer

Gardening with Ben Tip: Lavender ‘Hidcote’ is an excellent compact variety. Avoid planting lavender in heavy, waterlogged ground.

2. Rosemary

Botanical name: Salvia rosmarinus

Rosemary is an attractive evergreen shrub with aromatic leaves.

It produces small flowers that can provide an early source of nectar for pollinators.

• Position: Full sun
• Soil: Well-drained
• Height: Varies by cultivar
• Flowering: Often spring

Rosemary is particularly useful in sheltered, Mediterranean-style borders.

3. Thyme

Botanical name: Thymus species

Thyme is an excellent low-growing plant for dry soil.

Its aromatic foliage and small flowers make it ideal for edging borders, rock gardens and gravel gardens.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 5–30 cm
• Flowering: Late spring through summer

Creeping varieties can soften the edges of paths.

4. Nepeta

Botanical name: Nepeta species

Nepeta, commonly known as catmint, is a reliable perennial for sunny, well-drained borders.

Its blue-purple flowers attract pollinators and combine beautifully with roses.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 30–60 cm
• Flowering: Late spring through summer

Cutting back suitable varieties after flowering can encourage fresh growth.

5. Salvia Nemorosa

Salvia nemorosa produces attractive upright flower spikes.

Popular varieties include ‘Caradonna’ and ‘Mainacht’.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 30–70 cm
• Flowering: Summer

Once established, many varieties tolerate periods of dry weather.

6. Achillea

Botanical name: Achillea millefolium and garden cultivars

Achillea, also called yarrow, produces flat flower heads in shades of yellow, pink, red and white.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 40–90 cm
• Flowering: Summer

Achillea combines particularly well with ornamental grasses.

7. Eryngium

Common name: Sea holly

Eryngium produces striking blue or silver flower heads.

Its architectural appearance makes it ideal for modern and naturalistic borders.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 40–100 cm
• Flowering: Summer

Gardening with Ben Tip: Eryngium ‘Big Blue’ is an excellent choice for dramatic summer colour.

8. Hylotelephium

Formerly commonly classified as Sedum, Hylotelephium includes popular autumn-flowering perennials.

These plants have fleshy leaves and attractive flower heads.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 30–60 cm
• Flowering: Late summer and autumn

Their flowers provide valuable food for late-season pollinators.

9. Echinacea

Echinacea produces beautiful daisy-like flowers.

The prominent central cones also provide attractive seed heads.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 60–100 cm
• Flowering: Summer

Echinacea tolerates some dry conditions once established but performs best where the soil isn’t excessively dry for prolonged periods.

10. Verbena Bonariensis

Verbena bonariensis produces tall, airy stems topped with purple flowers.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 100–180 cm
• Flowering: Summer into autumn

It is excellent for attracting butterflies.

It may self-seed and can need winter protection in colder gardens.

11. Gaura

Current botanical name: Oenothera lindheimeri

Gaura produces delicate white or pink flowers that appear to float above the foliage.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 50–100 cm
• Flowering: Summer into autumn

It is particularly attractive in informal planting schemes.

12. Santolina

Santolina, often called cotton lavender, produces silver-grey aromatic foliage.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 30–60 cm
• Flowering: Summer

Its foliage provides a useful contrast against green-leaved plants.

13. Cistus

Cistus is commonly known as rock rose.

It produces papery flowers and evergreen foliage.

• Position: Full sun
• Soil: Free-draining
• Height: Varies by cultivar
• Flowering: Late spring through summer

Choose hardy varieties and provide shelter from severe cold winds.

14. Helianthemum

Helianthemum, also called sun rose, is an excellent low-growing plant for dry borders.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 15–30 cm
• Flowering: Late spring through summer

It is particularly useful for rock gardens and the front of borders.

15. Euphorbia Characias

Euphorbia characias produces distinctive yellow-green flowers and architectural evergreen foliage.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 80–120 cm
• Flowering: Spring

Important: Euphorbia sap can irritate skin and eyes. Wear gloves when handling.

16. Perovskia

Often known as Russian sage, Perovskia is now generally classified within Salvia.

It produces silvery foliage and airy blue-purple flowers.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 60–120 cm
• Flowering: Late summer

It combines beautifully with grasses and yellow-flowering perennials.

17. Stachys Byzantina

Commonly known as lamb’s ears, this plant produces soft, silver-grey leaves.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 15–45 cm
• Flowering: Summer

Its woolly foliage makes it especially attractive in dry borders.

18. Dianthus

Dianthus includes many compact, fragrant perennial pinks.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 15–40 cm
• Flowering: Late spring through summer

Excellent for edging and raised beds.

19. Armeria Maritima

Armeria maritima, commonly known as thrift, forms compact grassy clumps.

It produces rounded flower heads in pink or white.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 10–25 cm
• Flowering: Spring through summer

It is excellent for coastal-style and gravel gardens.

20. Erigeron Karvinskianus

Erigeron karvinskianus produces masses of tiny daisy-like flowers.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 15–30 cm
• Flowering: Late spring into autumn

It is particularly attractive around paving and walls.

It can self-seed freely.

21. Festuca Glauca

Festuca glauca is a compact ornamental grass with blue-grey foliage.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 20–30 cm

It is ideal for modern dry gardens and gravel borders.

22. Stipa Tenuissima

Now commonly classified as Nassella tenuissima, this ornamental grass produces fine, flowing foliage.

• Position: Full sun
• Soil: Well-drained
• Height: Approximately 40–60 cm

It adds movement and texture.

Monitor self-seeding and remove unwanted plants.

23. Phlomis Russeliana

Phlomis russeliana produces distinctive yellow flowers arranged in tiers.

• Position: Sun or partial shade
• Soil: Well-drained
• Height: Approximately 80–100 cm
• Flowering: Summer

It provides attractive seed heads during winter.

24. Ballota Pseudodictamnus

Ballota pseudodictamnus is a Mediterranean-style subshrub with soft silver-grey foliage.

• Position: Full sun
• Soil: Free-draining
• Height: Approximately 40–60 cm

It is excellent for sunny, dry borders where winter drainage is good.

25. Yucca Filamentosa

Yucca filamentosa produces bold evergreen leaves and impressive flowering spikes on mature plants.

• Position: Full sun
• Soil: Well-drained
• Height: Varies with flowering stems

It provides architectural structure throughout the year.

Avoid positioning sharp leaves close to narrow paths.

26. Hardy Geranium Macrorrhizum

Geranium macrorrhizum is one of the most useful plants for dry shade.

It forms spreading ground cover and produces attractive flowers.

• Position: Sun or partial shade
• Soil: Well-drained
• Height: Approximately 30–45 cm
• Flowering: Late spring through summer

Once established, it tolerates relatively dry conditions.

27. Epimedium

Epimedium is excellent for difficult, dry, shaded borders.

It produces attractive foliage and delicate spring flowers.

• Position: Partial shade
• Soil: Humus-rich, well-drained
• Height: Approximately 20–40 cm
• Flowering: Spring

Some species are particularly tolerant of dry shade once established.

28. Bergenia

Bergenia produces large, leathery leaves and attractive spring flowers.

• Position: Sun or partial shade
• Soil: Adaptable, provided drainage is suitable
• Height: Approximately 30–45 cm
• Flowering: Spring

It is useful for ground cover and difficult borders.

29. Cyclamen Hederifolium

Hardy autumn cyclamen is excellent for dry shade beneath deciduous trees.

It produces delicate flowers followed by attractive patterned leaves.

• Position: Partial shade
• Soil: Well-drained
• Height: Approximately 10–15 cm
• Flowering: Late summer through autumn

Gardening with Ben Tip: Cyclamen hederifolium is an excellent choice for naturalising beneath suitable trees.

30. Euphorbia Amygdaloides Var. Robbiae

Often called wood spurge, this evergreen perennial is particularly useful for dry shade.

• Position: Partial or full shade
• Soil: Well-drained
• Height: Approximately 40–60 cm
• Flowering: Spring

It spreads vigorously, so avoid planting it where space is limited.

Wear gloves because the sap is irritating.

Best Plants for Dry Sunny Borders

Sunny borders often experience significant moisture loss during summer.

Some of the best choices include:

• Lavender
• Rosemary
• Thyme
• Nepeta
• Salvia nemorosa
• Achillea
• Eryngium
• Santolina
• Hylotelephium
• Stachys byzantina

Combine plants with different heights and flowering periods to maintain interest.

Best Plants for Dry Shade

Dry shade is one of the most challenging conditions in gardening.

It commonly occurs beneath established trees, beside buildings and under large shrubs.

Suitable plants include:

• Geranium macrorrhizum
• Epimedium
• Bergenia
• Cyclamen hederifolium
• Euphorbia amygdaloides var. robbiae
• Some hardy ferns, depending on conditions

Even these plants need watering while establishing.

Gardening with Ben Tip: Add organic matter where practical, but avoid damaging established tree roots.

Best Evergreen Plants for Dry Soil

Evergreen plants help maintain structure during winter.

Plant	Best position	Main feature
Lavender	Full sun	Fragrant foliage
Rosemary	Full sun	Aromatic leaves
Santolina	Full sun	Silver foliage
Cistus	Full sun	Evergreen shrub
Yucca filamentosa	Full sun	Architectural leaves
Bergenia	Sun or partial shade	Large leathery leaves
Euphorbia characias	Full sun	Structural foliage

Check hardiness carefully in exposed UK gardens.

Best Drought-Tolerant Flowers for Bees

Dry gardens can still provide excellent wildlife habitat.

Choose plants with flowers that produce nectar and pollen.

Particularly useful choices include lavender, thyme, nepeta, salvias, achillea, eryngium and hylotelephium.

Try to include flowers from spring through autumn rather than relying on one flowering season.

Best Plants for Dry Sandy Soil

Sandy soil often drains quickly.

Good choices include lavender, rosemary, thyme, santolina, cistus, helianthemum and festuca.

Adding suitable organic matter can help improve moisture retention, although Mediterranean plants still require good drainage.

Best Plants for Dry Clay Soil

Clay soil can become very dry and hard during summer but waterlogged during winter.

This creates different challenges from sandy soil.

Suitable plants may include:

• Geranium macrorrhizum
• Bergenia
• Nepeta
• Achillea
• Phlomis russeliana
• Some hardy salvias

Avoid assuming that all drought-tolerant Mediterranean plants will thrive in heavy clay.

Winter drainage is especially important.

How to Improve Dry Soil

You don’t always need to replace your soil to improve growing conditions.

Add Organic Matter

Well-rotted compost can improve the structure and moisture-holding ability of many soils.

Apply Mulch

A layer of organic mulch helps reduce evaporation.

Reduce Competition

Remove weeds that compete for available water.

Avoid Excessive Digging

Frequent cultivation can disturb soil structure.

Improve Compacted Ground

Relieve compaction where practical without damaging established roots.

Choose Suitable Plants

Plant selection is often more effective than constant watering.

How to Create a Drought-Tolerant Garden Border

Step 1: Check the Growing Conditions

Identify sunlight, soil type and drainage.

Step 2: Choose Suitable Plants

Select plants that naturally tolerate your conditions.

Step 3: Prepare the Soil

Remove persistent weeds and improve soil structure where needed.

Step 4: Plan Plant Heights

Position taller plants towards the back of a traditional border.

Step 5: Repeat Plant Groups

Repeated planting creates a coordinated appearance.

Step 6: Plant at the Correct Depth

Avoid burying plant crowns.

Step 7: Water Thoroughly

Water plants after planting.

Step 8: Apply Mulch

Choose organic mulch or gravel according to plant requirements.

Step 9: Water During Establishment

Monitor moisture during the first growing seasons.

Step 10: Maintain the Border

Prune and divide plants when appropriate.

When Is the Best Time to Plant Drought-Tolerant Plants?

Spring is often an excellent time to plant Mediterranean perennials in the UK.

It gives them time to establish before winter.

Autumn can also be suitable for hardy plants where soil drainage is good.

Avoid planting into frozen or waterlogged ground.

How Often Should You Water Drought-Tolerant Plants?

Drought-tolerant plants need water while establishing.

During the first growing season, check soil moisture regularly.

Water thoroughly when necessary rather than applying tiny amounts frequently.

Established plants may need less supplementary watering, although prolonged drought can still cause stress.

Should You Mulch Dry Soil?

Yes, mulch can be very beneficial.

Organic Mulch

Useful for improving soil moisture retention and soil structure.

Gravel Mulch

Suitable for many Mediterranean plants that prefer free-draining conditions.

Important Advice

Avoid piling mulch against stems or crowns.

Common Mistakes When Gardening on Dry Soil

Planting Without Checking Drainage

Dry summer soil can still become waterlogged during winter.

Forgetting Establishment Watering

New plants need moisture to develop roots.

Choosing Moisture-Loving Plants

Some plants struggle in persistently dry soil.

Overfeeding

Excess fertiliser can encourage soft growth that needs more water.

Planting Too Closely

Overcrowding increases competition for moisture.

Ignoring Shade

Plants suitable for dry sun may struggle in dry shade.

Using the Wrong Mulch

Choose mulch according to plant requirements.

Expecting Plants to Be Drought-Proof

Even drought-tolerant species have limits.

Frequently Asked Questions About Plants for Dry Soil

What Are the Best Plants for Dry Soil in the UK?

Lavender, rosemary, thyme, nepeta, achillea, eryngium and hylotelephium are excellent choices for sunny, well-drained soil.

What Are the Best Flowers for Dry Soil?

Salvias, nepeta, achillea, dianthus, gaura and eryngium.

What Are the Best Plants for Dry Shade?

Geranium macrorrhizum, epimedium, bergenia and Cyclamen hederifolium.

What Are the Best Evergreen Plants for Dry Soil?

Lavender, rosemary, santolina, cistus and yucca.

What Are the Best Plants for Dry Sandy Soil?

Lavender, thyme, rosemary, santolina and helianthemum.

What Are the Best Plants for Dry Clay Soil?

Geranium macrorrhizum, bergenia, nepeta and suitable achillea varieties.

What Are the Best Low-Maintenance Plants for Dry Soil?

Lavender, hylotelephium, hardy geraniums and suitable ornamental grasses.

Can You Grow Roses in Dry Soil?

Established roses can tolerate some dry conditions, but most perform better with adequate moisture and fertile soil.

Can You Grow Hydrangeas in Dry Soil?

Hydrangeas generally prefer moisture-retentive soil and may struggle in persistently dry conditions.

Do Drought-Tolerant Plants Need Watering?

Yes, especially while establishing.

Should You Mulch Dry Soil?

Yes. Suitable mulch can help reduce evaporation.

Can You Grow Plants Under Trees?

Yes, but choose species adapted to dry shade and avoid damaging tree roots.

Are Mediterranean Plants Hardy in the UK?

Many are, but hardiness varies and winter drainage is important.

Can Dry Soil Support Wildlife?

Yes. Many drought-tolerant flowers attract bees, butterflies and other insects.

What Is the Best Time to Plant Drought-Tolerant Flowers?

Spring is often ideal, particularly for plants that dislike winter wet.

Final Thoughts: Choosing the Best Plants for Dry Soil

Dry soil doesn’t have to mean a disappointing garden.

With suitable plants, you can create colourful borders that provide flowers, attractive foliage and valuable wildlife habitat.

Lavender, rosemary and thyme are excellent for sunny Mediterranean-style planting.

Salvias, nepeta and achillea provide beautiful summer flowers.

Eryngium adds architectural interest, while hylotelephium offers late-season colour.

For dry shade, hardy geraniums, epimedium, bergenia and Cyclamen hederifolium are particularly useful.

The most important thing is to understand your soil and choose plants suited to its conditions.

Remember that drought-tolerant plants still need watering while establishing.

Improve soil where appropriate, mulch carefully and avoid overcrowding.

With thoughtful planning, even the driest areas of your garden can become attractive, productive spaces filled with colour and wildlife.

Keep smiling, keep shining, keep gardening with Ben!