Starting seeds over water heater with over head light.

wertach zone 7-B SCDecember 20, 2013

I have had good success with starting tomato and pepper seed on top of my water heater over the years.

Since I just recently had to replace it, I noticed that there is a lot of room overhead to hang a light fixture that I could raise as needed.

Do you think that the temps would be too high from the water heater or would it be a good growing environment, with a fan to circulate the air?

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Hi wertach,

Well, usually a little heat is helpful for seed germination but not necessary after germination. After the seeds have germinated, they usually grow better at lower temperatures (about 65 to 70 degrees F.) Heat will cause a plant to grow faster, requiring more light to balance that rapid growth. Unless you feel that you can supply lots of light, youâÂÂll be better off keeping things on the cool side. Keeping the temperature cooler will help to prevent weak and leggy plants.

Hope this is helpful,


    Bookmark   December 21, 2013 at 11:37AM
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seysonn(8a WA/HZ 1)

Agree with Art.

After germination, that area might be too hot, for the starting container to have contact with the top of the heater. But you can check it with a kitchen thermometer. After germination you will need a temperatures of about 55 -65F. Warmer temperature encourage faster growth.

    Bookmark   December 21, 2013 at 2:14PM
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