When should i start growing geraniums from seed?
Sow seeds in winter approximately 3 months before the last frost date. Sow in a flat in commercial seed starting medium, spacing seeds 1/4 inch apart in a row, with 1 to 2 inches between rows, covering lightly and maintaining the flats at 72°F. Keep the medium moist but not overly wet by misting. A plastic “greenhouse top” or plastic wrap draped over the flat will ensure high humidity, but don’t forget to vent the flats if placed in direct sunlight. Germination usually occurs in 7 to 14 days, but may be delayed and irregular. After germination, reduce the humidity, keep seedlings well ventilated and somewhat dry, but never allow the seedlings to dry out completely. The young seedlings must be carefully pricked out and transplanted into larger containers, such as 4 inch pots. Grow the young geraniums with 72°F days and 65°F nights. Supply supplemental light from fluorescent tubes to give 14 to 18 hours of light per day. Fertilize every 2 weeks with a water soluble plant food from the ti
