There are many varieties of this, but . the one that is most often seen offered for sale is C. argentea Cristata, which has red or yellow cockscomb from July to September. New plants may be grown from sown in gentle heat in the spring, but it is usually easier to buy one or two plants in if they are wanted for room decoration. It would be wise to pot them on into loam-based mixture as soon as purchased, using a slightly larger pot-this will obviate the need for too frequent . Place in a well-lit and keep thoroughly moist. After should be disposed of.