Cut stems of African lily to enjoy in a flower bouquet whenever you like. Trimming existing flower stalks promotes the lateral growth of your plant, for more blooming stalks.
Pinch off dead flower blossoms after they fade to keep your plant attractive. Grasp the blossom between your fingers and pinch to remove it.
Trim all stalks back to 1 inch above ground level in late fall, when they finish blooming. Discard the spent leaves and stalks. Cover the plant with a layer of mulch or compost to protect it from cold weather. In spring, the lilies will emerge again.