Wattage requirement for grow light or flourescent lights - Knowledgebase Question

Folly Beach, SC
Avatar for LeeandCoach
Question by LeeandCoach
February 13, 2007
How high of a wattage should the light be after seeds have sprouted? I have a 125 watt


Image
Answer from NGA
February 13, 2007
Your plants need good strong direct light. The plants' leaves need to be quite close to the bulb, within just a few inches. (Raise the light as the plants grow taller.) The longer fluorescent bulb will probably work better if you have more than one plant. If you have a lot of plants, 24 inches with a single bulb is probably not going to light up a large enough area.

For seedlings like this that are only grown indoors temporarily, ordinary fluorescent bulbs are fine; in a shoplight hood (holding two bulbs) you might use one warm bulb and one cool bulb if you want to extend the spectrum a little bit but ordinary bulbs are fine. To give you an idea of how much space, you can fit two flats lengthwise under a single four foot shoplight hood. The number of plants per flat depends on what size container you use for each plant.

I hope this helps.

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:

( No account? Join now! )

Today's site banner is by IrisLilli and is called "Purple Crocus Mix"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.