Sowing Seeds
Step 4:

A clear plastic domed cover over the flat keeps an evenly moist humid environment for the seed. You can use clear plastic wrap or glass panes over a container that has headspace between the pot rim and the soil. Place the covered flat in a warm (65-70 degree) environment until seeds emerge. Heat coils are available for purchase to ensure an even temperature. Usually you submerge the coil in dry sand to get a more even heat. Be sure to check the germination temperature on the back of the seed packet. As soon as the seedlings emerge remove the clear cover to allow for adequate air exchange on the new seedling. Failure to do this can result in damping-off.
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Follow the six easy steps below for successful seed starting: