Misting plants using lime free water provides a humid micro climate
and cleans the pores of the leaves. Misting twice a week is beneficial
for many houseplants but read the requirements for each individual plant
because it can harm some.
New compost used for houseplants contains fertiliser but this is all used
up by the plant within about six weeks. After that most houseplants need
regular feeding to keep them healthy. There are a variety of products for
this purpose including ready mixed liquid feeds, powder which added to
water, granules scattered on the surface and stick or granules which can
be pushed into the soil.
Our recommendation is the ready mixed liquid feeds because the amount
is easily regulated and it's easy to place a few drops into the water
when watering your plants. The powder is OK but it is easier to get the
dose wrong with this method. The granules and stick deliver only a very
localised feed and have the potential to damage the roots. There are also
foliar feeds (ready mixed feed which is to be sprayed onto the leaves)
but these are messy and it is very difficult to get the dosage correct.
Some plants have special feeding needs and these will be stated on
instructions that come with the plant. They are also described in the
requirements for each individual houseplant (see right hand column).
Houseplants to be careful with include air and carnivorous plants which
need no feeding. Cacti and succulents, orchids and bromeliads need
infrequent and very weak concentrations of feed.