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Epiphyllums

Some epiphyllums are still in bloom, so it's not too late to choose these undemanding and dramatic plants at nurseries. After they finish blooming, prune off diseased and desiccated branches and feed them occasionally with a weak balanced formula such as Alaska Fish Fertilizer or Dr. Earth Liquid Solution 3-3-3. Keep them in semishade.
Prune off ungainly branches and root them to make new plants. For a faster start, root four cuttings of the same variety in one 6 inch plastic container. (Never mix two varieties in the same container. The more vigorous one will soon crowd out the other, and you'll lose a prized color.)

Pruning stimulates growth more than fertilizer alone, so if you desire to hasten growth of a sluggish variety cut off all unsightly branches and feed it often. If you want to keep plants the same size, however, don't prune them too much and never overfeed with nitrogen.