Your August Garden Checklist: Coping with 2026's Record Heat and Drought

If your lawn has turned the colour of digestive biscuits and your water butt is bone dry, you're not alone. 2026 has brought one of the most relentless summers on record, with the Met Office confirming the UK is closing in on the all-time record for days over 30°C, and drought has now been officially declared here in Northamptonshire as well as across large parts of southern and eastern England. Many areas saw their driest July on record, with rainfall running at a fraction of the usual average.

It's been a tough summer for gardens as well as gardeners. But August doesn't have to be a write-off — with a few adjustments, you can protect what you've got, keep containers and borders alive, and even set things up nicely for autumn. Here's what the Woodmeadow team recommends for the weeks ahead.

1. Water Smart, Not More

With hosepipe bans in place across several regions, it's worth rethinking how you water rather than just watering more.

• Water at dawn or dusk — never in the midday sun, when most of it evaporates before it reaches the roots.
• Water deeply, less often. A thorough soak once or twice a week encourages deeper, more drought-resilient root growth, whereas a light daily sprinkle keeps roots lazy and near the surface.
• Prioritise pots and hanging baskets first — they dry out fastest and have no reserves to fall back on. Established trees, shrubs and lawns can generally cope with drought far better than containers.
• Reuse water where you can. Cooled washing-up water, water from steaming vegetables, and paddling pool water are all fine for ornamental beds (avoid harsh detergents near edible crops).
• If you're on a hosepipe ban, check your water company's exact rules — watering cans and reused grey water are almost always still permitted.

2. Mulch Like Your Borders Depend On It (They Do)

A 5–7cm layer of mulch — bark, compost, or well-rotted manure — locks in whatever moisture is there and shields roots from the baking sun. If you haven't mulched this year, it's not too late; water thoroughly first, then mulch straight after so you're sealing moisture in rather than dry soil.

3. Let the Lawn Look After Itself

A brown, crispy lawn looks alarming but is rarely dead — grass is remarkably good at going dormant in drought and bouncing back with the first proper rain. Resist the urge to water it (it's a losing battle and wastes precious water); instead:

• Raise your mower blades, or stop mowing altogether until it recovers.
• Never scarify or feed a drought-stressed lawn — wait until it's actively growing again in autumn.

4. Be Selective with Deadheading and Pruning

Plants under heat stress are focused on survival, not growth, so go easy on hard pruning this month. Do keep deadheading spent flowers on bedding plants, roses and dahlias — it's low-effort and encourages a fresh flush once temperatures ease.

5. Harvest Little and Often

Heat can push vegetables to bolt or ripen unevenly. Courgettes, beans and tomatoes in particular should be picked regularly to keep plants producing rather than putting energy into seed. Water fruiting vegetables consistently where you can — irregular watering is a major cause of split tomatoes and blossom end rot.

6. Watch Out for Pests That Love the Heat

Dry conditions are a dream for red spider mite, aphids, and powdery mildew. Check the undersides of leaves regularly, and keep an eye out for mildew's telltale white powdery coating on stressed, dry plants. Good airflow and (where possible) a bit of extra moisture at the roots help plants resist both.

7. Protect Wildlife

Ponds, birdbaths, and shallow water dishes are a lifeline for birds, hedgehogs, and pollinators in extreme heat. Top up daily, and add a few stones or a gentle slope so smaller creatures can climb out safely. If you keep a pond, check oxygen levels — warm water holds less oxygen, so a small fountain or aerator can make a real difference during a heatwave.

8. Start Planning for Autumn Planting

Even in the thick of a heatwave, it's worth thinking ahead. Cooler, wetter weather (whenever it finally arrives) is the ideal time to plant trees, shrubs, and perennials, as they establish roots without the stress of summer heat. Use August to plan out gaps in your borders so you're ready to plant as soon as conditions turn.

Visit Us at Woodmeadow

Pop into Woodmeadow Garden Centre on Kettering Road for drought-tolerant plants, mulches, watering cans, and friendly advice on getting your garden through the rest of this remarkable summer. Our team is on hand to help you choose the right plants and products for your particular patch of Northamptonshire.

Stay cool out there — and here's hoping for rain soon.