January 17, 2011
Grow Lights For Plants
Hi, I’m Sheri Ann Richerson, co-author of The Complete Idiot’s Guide to Year-Round Gardening.
Today we are talking about the proper placement of grow lights. Grow lights are especially useful for indoor plants, but also help illuminate greenhouses on cloudy days offering the plants a source of adequate lighting when natural sunlight is not available. In addition to using grow lights, expose the seedlings or plants to natural light if possible.
Filed under Seed Starting by on Jan 17th, 2011. Comment. 
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i enjoyed this – lots of good info
Super-Duper blog! I am loving it!! Will be back later to read some more. I am taking your feeds also
Indoor gardening requires cheap grow lights to provide a light spectrum plants need for photosynthesis, similar to that from the sun. Different stages of plant growth require different spectra. The initial vegetative stage requires blue spectrum, which metal halide (MH) discount grow lights would provide. The later flowering stage requires a red-orange spectrum, high pressure sodium (HPS) discount grow lights would provide. Cheap grow lights are also manufactured full spectrum. Cheap grow lights are normally used in conjunction with a reflector to control and intensify the light emissions, and will include a digital or magnetic ballast. Metal halide (MH) and high pressure sodium (HPS) are considered high intensity discharge (HID) grow lamps. HID grow lights are the most widely used for indoor gardening, but are not the only option. There is a range of bulb types that can be used as grow lights, such as incandescent, fluorescent lamps,and LEDs.