The Q&A Archives: Premature Germination

Question: I planted African daisies, Lupines, Zinnias, Sweet Peas, and Edelweiss last Sunday. I put them in a small indoor greenhouse and put a gro-light on them for a couple of hours for two days. They are already starting to germinate and poke through the soil. Will this premature germination hurt the plants and if so what should I do?

Answer: The seeds germinated quickly because of the heat from the gro-light. The seedlings should be okay, just keep the light 5-6 inches from the tops of the plants. The seedlings will grow best if you give them 14-16 hours of artificial light each day, turningit off at night. When the plants have developed their second set of true leaves (3 sets of leaves altogether), transplant them into individual pots so their roots have a chance to develop without having to compete for food and moisture. Spring is just around the corner and your plants will be ready to go outdoors in 6-8 weeks.

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