How do I water plants?
A very good indicator of when plants need to be watered lies in the appearance of the plant. Subtle changes in the colour and attitude of the foliage are indicators of water stress. As soon as the foliage goes slightly limp the plant is beginning to shut down to save water and will benefit from irrigation. If the soil or potting mix is allowed to dry out any further than this point it can be very difficult to wet it again as very dry media will tend to repel water. This results in having to pour excess water through just to moisten the medium again thereby wasting water. Wetting agents such as Saturaid and Wettasoil will also help to prevent such problems.