I just sowed 10 seeds directly in soil in my grow room tent. When should I turn the light on -- right now, when the seed begins to sprout above the soil, etc?
you can turn them on now if you want. The plant won't use the light until it breaks the soil, but it'll be there for it when it does. You can also wait till they sprout and save a day or two electricity. Won't hurt them at all though to turn it on.
