When you forget to water your Hanging Basket

Oh, it’s happened to all of us. You come home from work to find your hanging baskets sadly wilting, seemlingly haning on for dear life. It’s easily done when containers are full to bursting point with lush summer annuals and you weren’t there to water them just when they needed it.

A quick drink is often all it takes to restore plants, but if the compost is very dry, water tends to "run off," so give small amounts and let each dose soak in before repeating the process. It also helps to spray wilting plants over with water, as a quick reviver. They’ll usually be back to normal the following morning.

But more drastic treatment is called for when a hanging basket has dried out so badly that the soil shrinks away from the sides of the container and the plants are almost on their last legs. The best remedy in cases like this is to lift the basket down, move it into the shade, and stand it in a bowl of water for five or six hours – overnight if it’s easier – while the compost re-hydrates thoroughly. But those plants will inevitably have suffered some damage.

When soil turns bone-dry it shrinks, stripping away a lot of tiny root hairs; since those are the ones that take up water, affected plants need intensive care while they recover. The trick is to reduce the leafy area of the plant by about a third, so it doesn’t lose as much moisture from transpiration as usual – simply prune any stems that are clearly past saving plus any that will tidy up the shape of the plant.

That done, treat your plant to a few days of light regular watering – still in the shade – while they replace lost roots, then give them a foliar feed. (Use liquid seaweed extract or one of the foliar feeds from a garden center; since the nutrients are taken in through the leaves, the plant still benefits even if the roots are a tad frail).

After two or three weeks an affected basket will look nearly as good as new. But you’ll need to take special care over deadheading from then on to prevent plants running to seed prematurely – it’s their natural reaction to a sudden drought, since they are trying to reproduce themselves before they die.