Although it is possible to start seeds in a window, starting them with UFO grow lights will give them a much better chance of maturing. Grow lights are considerably more predictable than Mother Nature as grow lights can be turned on and off at will, not so with the sun. Grow lights are not expensive and they are well worth it if you’re planning on starting your own plants indoors from seed.
UFO grow lights are installed so that hang directly over the plant pot, when the pots are in the window to germinate, you have to remember to rotate them on a daily basis, not so when the light is perfectly positioned. When the pots are in the window, the plants will reach for the light and develop a tilt if they are not rotated regularly.
When you depend on the environment around the window you have no control over the light or the temperature, both of which are important if you are going to be successful. This is not the case when they are under a grow light which provides both light and heat. The heat can be infinitely adjusted by raising or lowering the lamp, in many cases a window sill is the coldest place in the house, especially in winter.
Many plants die before they get a chance to really start, the condition is called dampening-off. When the seedling has just begun to develop, perhaps it only has two tiny leaves, it will die, the reason is that the air around the seedling is static; it must circulate to avoid dampening-off. Many people assume incorrectly that cracking a window will move the air sufficiently but in many cases all this does is drop the temperature will stills kills the plant. This problem is easy to avoid when using UFO grow lights, all you have to do is set a small fan several feet away from your growing medium, you don’t want the air to be overly active, not even enough to move the leaves as they form.
Grow lights are readily available in garden stores and online. Some serious gardeners set up a corner in the basement and make this into their plant nursery while others will replace a normal overhead light bulb with a grow light and start their seeds on a table upstairs.Read More