Now's the time to get ready to grow your own seedlings! It's not really difficult, and can extend your growing season by many weeks. For example, by planting brassica's (cabbage, broccoli, and cauliflower) in February in your basement under grow-lights, you can put large, sturdy transplants into your garden by the end of March or early April, and be eating them when others are just seeing them come up! However, remembering that photosynthesis, using light, heat and moisture causes plant growth, you must follow a few key natural principles very carefully, or you will be disappointed.
First, seeds must have moisture to germinate and grow. And the soil mix must be moist, but not soggy, or you'll drown the new plant, since it must also have oxygen!
Second, while heat is essential, temperatures must be maintained in a narrow range for ideal germination to occur. Most vegetable seeds germinate quickly between 75 and 80 degrees Fahrenheit. After plants are up, many of them will grow in cooler temperatures, but most all will become dormant (stop growing) at temperatures below 50 degrees.
Third, light is not necessary for seed germination, but as soon as your seedlings begin to emerge from the soil, maximum light is required immediately for proper development. Therefore, to grow in your house, make sure your plants have a strong (but not hot!) light source directly on the plants, for up to 16 hours per day. Pictures of two grow-light shelves can be seen in the Photos section of the free gardening group at MittleiderMethodGardening@yahoogroups.com. The metal one is 6-shelf Commercial Chrome Shelving, from Sam