A plant doesn’t need water unless its leaves are (1) ... drooping, but it’s important to have some (2) ... around the roots, so keep the soil damp. Don’t overfeed plants, as this results in unhealthily rapid (3) ... It will be necessary for you to re-pot your plants (4) ..., in order to give them more space; the best time to do this is when the roots begin to grow up the side of the pot.