This plant needs plenty of room. Pick off yellowed leaves. Leaves will drop if the soil is too wet or too dry. It cannot withstand drafts. Leaves will yellow as a result of too much water or water that has been left in the saucer below.
Seeds are available but can be more difficult to use.
Scale insects and aphids will attack the plant also. This plant is sensitive to certain pesticides. Test the pesticide first on a small plant before applying it to the whole plant. Read the pesticide label for cautions. In some literature it is named Brassaia actinophylla.