If your garden’s looking a little worse for wear, you’re certainly not alone. This summer has already broken records across the UK, with intense heat, high humidity, and long dry spells having a major impact on people and places throughout the country.
As we enjoy a slight reprieve, here’s a handy action plan for how to keep your borders lush, vegetables producing, and pots thriving before the temperature ramps up once again.
Shift Your Watering Strategy
Although it might be tempting to bring out the watering can more regularly, you need to be smart about how you use it:
- Water early or late, never midday: Water your plants between 6:00 AM and 8:00 AM, so plants can absorb moisture before the sun hits, or later in the evening once the soil has cooled down. Remember, when watering, to aim directly at your plants’ soil and roots. Leaving them damp overnight can give slugs and snails the green light to start feasting!
- Water deeply: A quick splash encourages shallow root growth, making plants more vulnerable to drought. Water deeply around the base of plants twice a week rather than giving them a light spray every day.
- Use container feet: If you have outdoor pots, whether terracotta, galvanised steel, or timber, make sure they are raised slightly off hot patio slabs using planter feet. This prevents heat transfer into the root zone and keeps drainage holes clear.
Top Tip: If there is a hosepipe ban in place in your area, you should water your plants with a watering can or bucket.
Lock in Moisture with Mulch
Unprotected soil loses water rapidly through evaporation. Applying a thick layer of mulch to the soil in your garden will dramatically cut down your watering workload over the next month.
- Clear any competing weeds from around the bases of your trees, shrubs, and display borders.
- Thoroughly soak the soil first.
- Apply a 5-7 cm (2-3 inch) layer of organic compost, bark chips, or well-rotted manure around your plants. Keep the mulch an inch away from main plant stems to prevent rot.
Step Away from the Mower (and the Hose!)
If your lawn is starting to look more like a golden wheat field than a green carpet, don’t panic; established turf is remarkably resilient and will bounce back with the autumn rains.
- Stop watering the lawn: Established lawns naturally go dormant and turn brown during hot, dry spells to protect themselves. Watering grass during a drought is a waste of precious water; it only green-ups the surface temporarily without building deep drought resistance. Unless you have brand-new turf laid within the last few months, let it rest; it will revive fully when the autumn rains arrive.
- Raise your blade height: If you must mow, raise the mower deck to its highest setting (at least 4-5 cm). Taller grass blades shade the soil, keeping the root environment cool and slowing water loss.
- Leave the clippings: Leave fine grass clippings on the lawn (mulch mowing) to act as a natural moisture trap and return nutrients to the soil.
- Stop feeding: Do not apply high-nitrogen lawn fertilisers during dry or hot periods, as they can scorch stressed grass.
Protect Container & Greenhouse Plants
Planters contain limited soil volume, meaning root balls heat up fast, especially during persistent warm spells.
| Area | Quick Action |
|---|---|
| Patios & Terraces | Move sensitive potted plants (like hydrangeas, fuchsias, or leafy greens) into partial shade during peak afternoon sun (12 PM – 4 PM). |
| Metal Planters | Galvanised or raw metal containers look fantastic but absorb heat quickly. Ensure they are positioned where they catch relief in afternoon shade. |
| Greenhouses | Apply shade paint or netting to glass, open all roof vents and doors, and damp down the floor slabs with water every morning to boost humidity and drop internal temperatures. |
Harvest Daily & Deadhead Relentlessly
As plants experience heat stress, their instinct is to bolt (go to seed) quickly to reproduce.
- Vegetable patches: Pick courgettes, beans, tomatoes, and cucumbers continuously. Regular harvesting signals the plant to keep producing fresh crops rather than putting energy into seed maturation.
- Flower borders: Regularly deadhead spent blooms on sweet peas, dahlias, and roses to encourage a secondary flush of flowers as conditions settle into late August.
Looking Ahead to August
As we head deeper into summer, high pressure is expected to maintain warmer-than-average conditions across most of the country. By adjusting your watering habits, mulching early, and keeping roots cool, your garden will easily weather the heat and stay vibrant right through to autumn.
