Temperatures have exceeded 30C in some areas of the UK over the last week, meaning garden plants may have suffered. Hayden Salt, garden centre manager at Jacksons Nurseries, recommended coconut sugar, best known as a health-conscious sweetener. It can be used to give heat-stressed plants a “gentle boost”, and it’s super easy to use.
The expert said: “Coconut sugar contains natural molasses and trace minerals, which can support beneficial microbes in the soil. Those microbes help roots take up water more efficiently, which is exactly what plants need when they’re dehydrated or heat-stressed.”
This tip is especially useful for container plants, pots and raised beds, which dry out much faster than bedding plants in the sun.
You only need a small amount of sugar, too; around a tablespoon in one litre of water should suffice every couple of weeks.
The expert added: “Think of it like a probiotic drink for your plants. It supports the soil life, not just the plant itself.”
If your garden has suffered in recent heat, Hayden recommended doing this trick now to revive any plants.
He explained: “Drooping leaves, dull colour, dry soil and stunted growth are all signs your plants are struggling.
“You might also see leaf scorch — brown patches or curling at the edges, especially on sun-facing plants.”
Watering at the right time is also crucial, and it should be done early in the morning when the sun is low and evaporation is reduced.
Soak the soil deeply, too; don’t just sprinkle the surface. If you have pots, move them into dappled shade or cluster them together to retain moisture.
Alongside the coconut sugar trick, mulch is also a great way to lock in moisture throughout a heatwave, as well as pruning back any damaged growth.
The expert added: “Plants are resilient, they can recover from stress, but only if we act quickly and give them the right conditions.
“Don’t give up on them too soon. With a little help, they can bounce back beautifully. It’s an old gardener’s trick with a modern twist, and it couldn’t be easier.”
