Answer
If plants are grown
in pots or containers they require watering frequently, water when the top
of the compost begins to look dry, how much depends on the season, in full
growth in the summer this may be every day, but other times of the year be
careful not to over water.
Plants grown in the greenhouse, only water plants that require watering, because
you will probably have plants in different size pots growing at different
rates of grown. Never allow plants to stand in water for more than about 10
minutes.