How to Help Your Garden Survive the Current UK Heatwave

If you’ve stepped outside recently, you’ll know just how intense this spell of hot weather has been. While we all enjoy a bit of sunshine, prolonged heat can be tough on our gardens. Plants can quickly become stressed, lawns turn brown, and even well-established shrubs start to show signs of struggling. With temperatures reaching record levels across parts of the UK this week, it’s worth giving your garden a little extra TLC.

The good news? A few simple changes to your gardening routine can make a huge difference.

Water Smarter, Not Harder

One of the biggest mistakes people make during a heatwave is watering little and often.

Instead, give your plants a good, deep soak early in the morning or later in the evening when the sun is low. This allows the water to soak down to the roots rather than evaporating almost immediately.

Container plants and hanging baskets will need more attention than plants growing in borders, so keep an eye on them—they dry out surprisingly quickly during hot weather. Watering deeply but less frequently also encourages stronger root growth, making plants more resilient in the long run.

Don’t Panic About the Lawn

A brown lawn doesn’t necessarily mean a dead lawn.

Grass naturally goes dormant during long dry spells and, in most cases, will bounce back once cooler, wetter weather returns. Resist the temptation to mow it too short—longer grass shades the soil and helps retain moisture. In fact, many gardening experts recommend holding off mowing altogether during extreme heat.

Mulch is Your Best Friend

Adding a layer of mulch around your plants is one of the easiest ways to lock moisture into the soil.

Whether you use compost, bark chips or well-rotted manure, mulch acts like a protective blanket. It helps keep roots cooler, slows evaporation and even suppresses weeds that would otherwise compete for precious water.

Give Sensitive Plants Some Shade

Just like us, some plants appreciate a little relief from the blazing afternoon sun.

Tender vegetables, young plants, hydrangeas, hostas and freshly planted shrubs can all suffer from leaf scorch during extreme temperatures.

If possible, move pots into a slightly shadier spot for a few days. For plants that can’t be moved, creating temporary shade can make all the difference.

One simple solution is to use garden screening or shade netting. Our Privacy Screen Netting isn’t just great for creating a more private garden—it can also help reduce the intensity of direct afternoon sun and protect more delicate plants from the worst of the heat while still allowing air to circulate. It’s an easy way to create a cooler microclimate in parts of the garden without building permanent structures.

You can browse our range of Privacy Screen Netting here:
https://protecgardenproducts.co.uk/category/privacy-screen-netting/

Leave the Feeding Until Later

When plants are under heat stress, they’re focused on survival rather than growth.

Now isn’t the best time to apply fertiliser, as encouraging fresh growth can actually put plants under even more pressure. Wait until temperatures return to normal before feeding.

Keep an Eye on Pots

Pots can become incredibly hot during a heatwave—especially dark-coloured ones sitting on patios.

If possible:

• Move containers into partial shade.
• Group pots together to help them retain moisture.
• Stand terracotta pots on saucers to reduce water loss.
• Check compost daily, particularly for tomatoes, herbs and flowering plants.

Look After Yourself Too

It’s easy to lose track of time in the garden, especially when there’s plenty to do.

Try to tackle gardening jobs early in the morning or later in the evening, wear a hat, keep a bottle of water nearby and take regular breaks in the shade. The garden will still be there tomorrow.

A Little Preparation Goes a Long Way

Heatwaves seem to be becoming a more regular part of the British summer, so it’s worth thinking ahead. A few simple habits—watering wisely, adding mulch and providing temporary shade—can help your garden cope much better when temperatures climb.

With a little extra care now, your plants will thank you later, and when the rain eventually returns (it is Britain, after all!), they’ll be ready to burst back into life.

Happy gardening!