Answer: If your seedlings are rotting at the soil line and falling over, they've probably been killed by damping-off disease. It's a fairly common problem when soil is waterlogged and cold, and there's not enough air circulation around the plants. Begin with sterile soil and sterile flats when you start your seeds. Be sure to thin the seedlings so they don't have to compete for light and nutrients, and keep the soil moist, but not soggy. Then place your transplants outdoors only after the soil iswarm in the spring.
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