Keep growing medium moist but not saturated. If HID lighting is used, make sure plants are allowed to grow to an adequate size or you can end up with plants that flower too early. Plants need light feed. Light levels should be 2,500 footcandles during Stage 3 and 3,000 footcandles from Stage 4 through finish. Excessive light levels can result in leaf burn.
Plants are ready to be transplanted into final containers when they have three to four true leaves.
Plants can be grown pot tight until leaves reach the pot rim. If plants are crowded, stretching can occur and disease can be a problem. Irrigate plants early in the day, which gives leaves adequate time to dry. Allow the medium to dry out between waterings, but don't let plants wilt. A chilling period of four to five weeks promotes earlier flowering and large flower heads.