Vir Campestris wrote:
On 26/07/2016 13:45, Jeff Layman wrote:
If the pot has dried out, and the compost has shrunk (particularly
if it is soilless), then watering can have little effect as the
water will just run down the inside of the pot and not wet the
compost sufficiently. It is useful to observe how quickly the water
exits the pots after it is applied. It may help to add some
washing-up liquid to the water as that will help it to penetrate the
compost. It can also help to stand the pot in a large saucer.

Standing them in a bucket of water for half an hour will usually do
the trick.

Andy

From experience I can confirm that it does. It's time consuming and messy
when you've got thirty-odd to do though...