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13 drought-tolerant plants for pots to reduce watering

Want pots that look great all summer without watering all the time? Inspired by RHS Sandringham Flower Show, here are 13 container-friendly perennial plants that can beat the heat

Watering thirsty pots multiple times a week is not only time-consuming; it’s also unsustainable – especially if your stored rainwater has run dry, and you’re having to scrabble around for household greywater or even resort to precious tap water.

Plants in containers will fundamentally need watering more often than the same plants in the ground, but with these designer-approved, low-maintenance plants for pots, you can keep your garden full of colour all summer long while minimising your mileage with the watering can.

Top tip

Don’t forget to put saucers under your pots, and try to only water when plants start to show signs of stress, for example wilting or leaf curling. The more you ‘train’ your plants to cope with little water, the more resilient they will be.

Water in the early morning or late evening and direct water at the soil at the base of the plant, avoiding the leaves.

More tips to get the most from watering less >

Given these plants all enjoy similar conditions, you can mix and match to create your own container combinations, or pair them with other plants that also enjoy sunny, free-draining or dry conditions. All, of course, would also work in beds and borders for a drought-tolerant planting scheme.


8 plants for beautiful blooms

Agapanthus

Agapanthus ‘Sandringham’ on the RHS Royal Legacy Garden
  • Looks good with: Stipa tenuissima, Oenothera lindheimeri 
  • Position: full sun
  • Soil: well-drained
  • Flowering period: July–August
  • Hardiness: herbaceous forms are generally hardy; evergreen forms can be tender

 

Salvia ‘Nachtvlinder’

Salvia ‘Nachtvlinder’ on The RHS Pollywiggle Garden

  • Looks good with: Verbena ‘Bampton’, Stipa tenuissima, Artemisia ‘Powis Castle’
  • Position: full sun or partial shade
  • Soil: well-drained or moist but well-drained
  • Flowering period: June–August
  • Hardiness: fully hardy

 

Oenothera lindheimeri – white gaura

Oenothera lindheimeri on the Butterfly Sanctuary Garden
  • Looks good with: agapanthus, Verbena ‘Bampton’, Stipa tenuissima
  • Position: full sun or partial shade
  • Soil: well-drained or moist but well-drained
  • Flowering period: June–August
  • Hardiness: fully hardy

 

Verbena officinalis ‘Bampton’ – vervain

Verbena officinalis ‘Bampton’ on The Goldcrest Garden: Restoring Habitat, Repairing Climate

  • Looks good with: Stipa tenuissima, Oenothera lindheimeri, Eryngium ‘Blue Hobbit’
  • Position: full sun
  • Soil: well-drained or moist but well-drained
  • Flowering period: June–September
  • Hardiness: fully hardy

 

Erigeron karvinskianus – Mexican fleabane

Erigeron karvinskianus on the 100 Sweet Summers garden
Erigeron karvinskianus ‘Lavender Lady’ on The RHS Crafted from Nature Garden
  • Looks good with: almost anything where it can froth underneath other plants and spill over the edge of the pot
  • Position: full sun or partial shade
  • Soil: well-drained or moist but well-drained
  • Flowering period: June–August
  • Hardiness: fully hardy

 

Tradescantia ‘JS Brainstorm’ – spider lily

Tradescantia ‘JS Brainstorm’ on The RHS Royal Legacy Garden

  • Looks good with: Agapanthus, Eryngium ‘Blue Hobbit’, Stipa tenuissima, Euphorbia myrsinites
  • Position: full sun or partial shade
  • Soil: moist but well-drained – strong resilience to both wet and dry conditions
  • Flowering period: June–September
  • Hardiness: fully hardy

 

Eryngium ‘Blue Hobbit’ – sea holly

Eryngium planum ‘Blue Hobbit’ in the Gardens on the Edge long border

  • Looks good with: Agapanthus, Oenothera lindheimeriTradescantia ‘JS Brainstorm’, Verbena Bampton, Stipa tenuissima, Festuca glauca, Euphorbia myrsinites
  • Position: full sun
  • Soil: well-drained
  • Flowering period: June–September
  • Hardiness: fully hardy


Coreopsis verticillata ‘Moonbeam’ – tickseed

Coreopsis ‘Moonbeam’ on the Tough as Old Boots Garden
  • Looks good with: Hylotelephium ‘José Aubergine’, Festuca glauca
  • Position: full sun or partial shade
  • Soil: well-drained or moist but well-drained
  • Flowering period: July–September
  • Hardiness: fully hardy

 

5 plants for fabulous foliage

Hylotelephium ‘José Aubergine’ – sedum

Hylotelephium ‘José Aubergine’ with Coreopsis ‘Moonbeam’ on The RHS Royal Legacy Garden
  • Looks good with: Verbena officinalis ‘Bampton’, Salvia ‘Nachtvlinder’, Coreopsis verticillata ‘Moonbeam’, Festuca glauca, Artemisia ‘Powis Castle’
  • Position: full sun
  • Soil: well-drained
  • Flowering period: August–October
  • Hardiness: fully hardy

 

Artemisia ‘Powis Castle’ – wormwood

Artemisia ‘Powys Castle’ on the Tough as Old Boots Garden
  • Looks good with: Oenothera lindheimeri, Salvia ‘Nachtvlinder’, Erigeron karvinskianus, Festuca glauca, Euphorbia myrsinites
  • Position: full sun
  • Soil: well-drained
  • Flowering period: August, but it’s all about the foliage!
  • Hardiness: tender perennial (hardy in coastal and relatively mild areas of the UK – -5 to 1C)

Find out more
Buy this plant
 

Euphorbia myrsinites – broad-leaved glaucous spurge

Euphorbia myrsinites with Nepeta on The Goldcrest Garden: Restoring Habitat, Repairing Climate
  • Looks good with: Erigeron karvinskianus, Eryngium ‘Blue Hobbit’, Stipa tenuissima, other succulents
  • Position: full sun
  • Soil: well-drained
  • Flowering period: April–July
  • Hardiness: fully hardy

Find out more
Buy this plant
 

Festuca glauca – blue fescue

Festuca glauca with Artemisia ‘Powis Castle’ and Erigeron karvinskianus on the Tough as Old Boots Garden
  • Looks good with: Erigeron, Eryngium ‘Blue Hobbit’, Artemisia ‘Powis Castle’,  karvinskianusCoreopsis ‘Moonbeam’, Achillea ‘Moonshine’
  • Position: full sun 
  • Soil: well-drained or moist but well-drained
  • Flowering period: June–July
  • Hardiness: fully hardy

Find out more
Buy this plant

 

Stipa tenuissima – Mexican feather grass

Stipa tenuissima with Verbena ‘Bampton’ and Achillea on The Goldcrest Garden: Restoring Habitat, Repairing Climate
  • Looks good with: pretty much anything, to give an instant textural lift
  • Position: full sun or partial shade
  • Soil: well-drained or moist but well-drained
  • Flowering period: June–October
  • Hardiness: hardy throughout most of the UK

Find out more
Buy this plant

About the author – Olivia Drake

With a background in plant sciences, Olivia is passionate about plantsmanship, biodiversity and sustainable horticulture. She is trained as a botanical horticulturist and previously worked in public gardens around the UK and overseas.

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