What's your question? Ask

Q.Electric Propogator With Lights Problems

Zone Liverpool UK | Anonymous added on December 17, 2025 | Answered

I have a propogator which hs lights. There is a timer. 4 hrs. 6.hrs 12 hrs. The lights can be adjusted to 20% 40% 60% 80% 100% I have tried the lights on 80% and 100% but the seedlings are still getting “drawn and leggy” I keep the propogator in the house as the seedlings are then protected from icey weather Has anyone experience who could advise on what settings they should be on.

A.Answers to this queston: Add Answer
GKH_Susan
Certified GKH Gardening Expert
Answered on December 18, 2025

Try setting the lights on 100 percent for 12 hours. 16 hours would be better. Can you adjust how close the lights are to the seedlings? They should be within a few inches (7-8 cm) and raised as the seedlings grow. Typically, leggy stems means they are not getting enough light.

These articles should help:

https://www.gardeningknowhow.com/garden-how-to/propagation/the-top-reasons-seeds-and-seedlings-fail

https://www.gardeningknowhow.com/garden-how-to/propagation/seeds/leggy-seedling.htm

Was this answer useful?
00

Log in or sign up to help answer this question.

Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

OK