Tulips are classified as early, mid-season, or late, providing color over four to five weeks each spring. Tulips in this class bloom before the Early group. Species tulips are easily naturalized, and quite varied in bloom and foliage characteristics. This fungal disease spreads quickly in warm, humid, wet springs. First, leaf tips yellow and shrivel, followed by spots near leaf margins that increase and merge.
Spots appear on petals followed by rotting and a mushy, gray mold.
Badly affected plants should be destroyed. Hyacinth Hyacinth blooms are very formal and fragrant. They bloom at the same time mid-season tulips are blooming. Hyacinths are planted in small, irregular groups for best effect. They are excellent for cutting and easily forced in pots for indoor use.