Botanist Dad

Sometimes we all need a helping hand in the garden, but who do you ask for help? Our Botanist Dad knows all about plants and growing, and is here to answer your dilemmas

Q ADear Botanist Dad, I struggle to keep my garden well watered in summer – any ideas? Mel Richards, Norfolk

The secret to watering is not to do it unless the plants need it. Watering frequently persuades plants to develop shallow roots, meaning they’re more likely to suffer from drought. It’s better to water occasionally – as little as once a week – thoroughly soaking the ground when you do.

There are exceptions, of course. Newly-planted plants and seeds need daily watering, and plants in pots need more liquid as their roots are constricted.

Tomatoes and cucumbers in shallow growbags or hot greenhouses also need more care – water every few days in summer. Automated greenhouse watering systems are fairly cheap, and are brilliantly low maintenance; but you’ll need an outdoor tap.

Unless they’re newly laid or sown, lawns, on the other hand, hardly ever need watering. Even if they turn brown, they’ll almost always grow back.

Installing a water butt is good for your water bills – and the planet. The best time to give plants a drink is early evening. Done in the heat of the day, the water will evaporate before it reaches the roots. And water the soil, not the plant – droplets can act like magnifying glasses on leaves, scorching them.

A good mulch such as bark, leaf mould or compost will help stop water evaporating – just make sure the ground is damp before you cover it.

Finally, when away, move pots into a shaded area, and give them a good soaking just before you leave. But nothing beats a neighbour plant-sitting, though – you can give them some tomatoes or a bunch of flowers that they’ve helped to save as a thank you! Email thesimplethings@icebergpress.co.uk with your questions, or follow on Instagram: @thebotanistdad.