Gardening Under a Hosepipe Ban — How to Keep Your Garden Going

A hosepipe ban focuses the mind. Suddenly every drop counts, and the garden you’ve spent years building feels precarious. But experienced gardeners know that a ban is also a moment of clarity — it reveals which plants genuinely earn their place, and which have been quietly depending on you more than they should.

This is a guide to getting through a hosepipe ban with your garden — and your sanity — intact. 

Why Hosepipe Bans Happen — and Why They Matter

Here is a statistic worth sitting with: according to the Environment Agency, England needs to find almost 5 billion extra litres of water a day by 2050 to maintain water supplies. More than half of that — 2.6 billion litres a day — is needed in the South East alone.

Water scarcity is not simply a question of rainfall. In the South East, demand for water now regularly exceeds what the environment can sustainably provide — a combination of a growing population, reduced extraction limits introduced to protect sensitive river and wetland ecosystems, and the increasing pressure of climate change on rivers, lakes and underground reserves.

The restrictions on how much water can be taken from the environment are, in truth, the right response to a genuine ecological problem. Rivers and aquifers support rare and fragile habitats; taking less from them is not an inconvenience but a necessity. The challenge is that we must find ways to use what we have more wisely — and that starts in the garden.

Water is a finite resource. From the moment it falls as rain or comes out of a tap, it is part of a natural cycle that cannot simply be accelerated to meet demand. Gardening with that in mind is not a hardship — it is, increasingly, just good practice.

Understanding What a Hosepipe Ban Actually Means

In the UK, a hosepipe ban (formally a Temporary Use Restriction) typically prohibits using a hosepipe to water private gardens, wash cars, or fill paddling pools. It does not prevent you from using a watering can, a bucket, or water from a water butt. Greywater — water from baths, showers and washing up — the use of greywater is actively encouraged by water companies, and resourceful gardeners are increasingly making the most of it.

Check your water company’s specific restrictions, as the rules can vary slightly.

Triage: What to Save First

Not everything in the garden needs equal attention. In a ban, triage is everything.

• Newly planted this season — plants put in during the last six to eight weeks have not yet established a root system deep enough to find their own water. These are your priority.
• Containers — pots dry out rapidly and have no access to ground moisture. Water these daily if possible, ideally in the morning. Group pots together — this raises the local air humidity around the plants and means foliage shades the compost surface, both helping to keep moisture where it’s needed. In summer, placing saucers or trays beneath pots is a useful way to capture any runoff and let the compost draw it back up — but do empty them a few hours after watering to avoid the roots sitting in standing water for too long.
• Vegetables and fruit — if you’re growing food, prioritise it. Ornamentals can recover from stress; a bolted lettuce cannot.
• Established shrubs and perennials — most can cope with several weeks of drought once established. Trust them.

Making Every Drop Count

Early morning is the best time to water — the temperature is cool so evaporation is low, and any moisture that lands on the foliage has the whole day to dry off. Watering in the evening is sometimes suggested as an alternative, but wet leaves sitting overnight can encourage fungal diseases, so if you do water later in the day, aim at the base of the plant and keep the foliage dry. Avoid watering in the heat of the day entirely — most of it will be lost to evaporation before it reaches the roots. Always direct water to the base of the plant, not the foliage. A slow, deep soak once or twice a week is far more effective than a daily sprinkle, which encourages shallow rooting and makes plants more dependent, not less.

Mulching is one of the most effective things you can do. A 5–7cm layer of garden compost or bark around the base of plants dramatically reduces moisture loss from the soil surface. Apply it to moist soil — mulching dry soil simply locks the dryness in.

Collect every drop you can. A single water butt on a downpipe can collect hundreds of litres — a surprisingly effective way to build up a reserve between watering sessions. If you don’t have one, now is the time to invest. Greywater from the bath or washing up can be used directly on ornamentals — avoid it on edibles where it contacts the parts you eat.

The Overwatering Trap

In hot weather, it’s tempting to reach for the watering can the moment a plant droops. But wilting in the heat of the day is often not a sign of drought — it’s a plant conserving moisture by reducing the surface area exposed to the sun. The key is learning to tell the difference between temporary heat wilt and genuine drought stress.

A plant suffering from heat wilt will typically look much better by morning or evening once temperatures drop, and the soil will still feel moist a few centimetres below the surface. The leaves may feel warm but won’t be crispy or brittle. True drought stress is more persistent: the plant stays wilted into the evening and the following morning, lower leaves may yellow or drop, and the soil will be dry well below the surface. Leaves that feel dry, curled or papery are a more reliable indicator of genuine water need than a midday droop.

If in doubt, check the soil before you water. Watering a plant that doesn’t need it — particularly in warm, poorly-draining conditions — can cause root rot and do more damage than the drought itself.

The Plants That Don’t Need You

A hosepipe ban is the moment drought-tolerant plants come into their own. These are not plants that merely survive dry conditions — they are plants that were bred or evolved for them, and they often look their best precisely when everything else is struggling.

• Achillea — yarrows are built for dry, poor soils. Their flat-topped flowerheads in yellow, white, pink and red are a mainstay of the summer border and need almost no water once in.
• Eryngium — sea hollies are architectural, long-flowering and almost aggressively drought tolerant. The steely blue of Eryngium × olivierianum ‘Big Blue’ or the E. bourgatii cultivars are particularly striking.
• Gaillardia — the Blanket Flower is a prairie plant at heart. Once established, it shrugs off dry spells and keeps flowering from early summer to autumn without complaint. 
• Hylotelephium (Sedum) — the late-summer Hylotelephiums are succulent-leaved and store their own water. ‘Matrona’, Hylotelephium cauticola ‘Coca-Cola’ and Hylotelephium mottramianum ‘Herbstfreude’ are all excellent.
• Salvia — the ornamental Salvias, particularly the nemorosa types, are excellent in dry conditions. Long spikes of violet-blue or pink flowers over a long season, with minimal fuss.
• Stachys — silver-leaved plants such as Stachys byzantina ‘Big Ears’ (Lamb’s Ears) have evolved their woolly, reflective foliage precisely to cope with heat and drought. Excellent as ground cover at the front of a sunny border, and virtually indestructible once established.
• Stipa and Pennisetum — these ornamental grasses evolved on dry steppes and prairies. They move beautifully in summer breezes and ask almost nothing of you.
• Verbascum — mullein’s deep taproot allows it to find water far below the surface. Tall, stately and completely self-sufficient once established.

Right Plant, Right Place

The most water-efficient garden is one where the plants suit the conditions in the first place. If you have a heavy, moisture-retentive soil that stays damp even in summer, Hostas, Astilbes and Ligularias may thrive with little or no intervention — and there’s no reason to abandon them. But if your soil is free-draining and your borders bake in the sun, those same plants will always be a battle. The principle is simple: right plant, right place. A drought-tolerant plant in the right spot will outperform a moisture-lover in the wrong one every time, and will do so without demanding anything of you in return.

A hosepipe ban is a useful moment to take stock of what’s working and what isn’t — and to think about whether the plants you’re fighting to keep alive are really suited to where they’re growing.

A Note on Newly Planted Hardy’s Plants

If you’ve recently received plants from us, do water them in well on arrival and keep them watered until established — this is the one non-negotiable. If you’re not planting straight away, move the pots to a spot where they won’t be exposed to direct sun during the hottest part of the day, and somewhere reasonably sheltered — wind dries compost out surprisingly quickly. During spells of hot weather, water well each morning, but always check the compost first to make sure the plants actually need it before reaching for the can.

In the first season in the ground, water around the base of the plant until the soil is evenly moist to root depth — roughly 15cm down. A mulch of organic matter around the base will help the soil hold onto that moisture between waterings.

Once they’ve been in the ground for a full growing season, most of our perennials will be far more self-sufficient than you might expect. Established herbaceous perennials rarely need regular watering at all — which is, of course, rather the point.

The best gardens are not the ones that need the most water. They’re the ones planted with enough understanding of their conditions that they can largely look after themselves. A hosepipe ban is a nudge in that direction.

Frequently Asked Questions

How often does Southern Water implement a hosepipe ban?
Southern Water, which supplies Hampshire and the Isle of Wight, has implemented Temporary Use Bans four times in the last twenty years: in 2012 during a regional drought, in August 2022, from July to October 2025, and again from July 2026. Three bans in five years reflects the particular pressure on water resources in this part of the country — though the wider South East is also one of the hardest-hit regions in England for water scarcity.

Can I use a watering can during a hosepipe ban?
Yes. A hosepipe ban restricts the use of a hosepipe connected to the mains supply, but watering cans, buckets, and water from a water butt are all permitted. The use of greywater from baths, showers and washing up on ornamental plants is also actively encouraged by water companies.

Can I water newly planted plants during a hosepipe ban?
Yes — a watering can is all you need, and newly planted perennials should be your priority. Water around the base until the soil is moist to root depth (roughly 15cm), ideally in the early morning.

How do I know if my plant needs watering or is just suffering from heat stress?
Check the soil a few centimetres down before reaching for the can. If it’s still moist, the plant is likely wilting from heat rather than drought — it should recover by evening. True drought stress persists into the following morning and is accompanied by dry, curled or papery leaves.

What are the best plants for a garden that doesn’t need much watering?
Achillea, Eryngium, Gaillardia, Hylotelephium, Salvia, Stachys, Stipa, Pennisetum and Verbascum are all excellent choices for dry, sunny conditions. See our plant list above for more detail.