Raised Garden Beds
Q.

Solarizing Raised Bed Gardens

Zone 97477 | lolwme32 added on August 23, 2016 | Answered

I read the excellent article on how to solarize raised bed gardens, but it didn't say when is the best time to do that. It says for how long, 4-6 weeks, which makes me think you do it 4-6 weeks before planting, is that right?

    A.
    A.Answers to this queston: Add Answer
    Alisma
    Certified GKH Gardening Expert
    Answered on August 23, 2016

    Yes, solarization can be done before planting in the spring. The most effective time to solarize is during the hottest part of the summer, since this will kill weed seeds and soil pathogens even a few inches down in the soil. Of course, that is also the time when most people are using their garden to grow plants, so summer solarization is only practical if you have a large garden and are able to sacrifice a portion of your space every year.

    However it can also be effective to solarize for 4-6 weeks in the spring before planting and in the fall after harvest. If you choose a black tarp or other cover, the lack of light will also help kill weeds that sprout. Here is more information:

    http://ipm.ucanr.edu/PMG/PESTNOTES/pn74145.html
    https://extension.umaine.edu/publications/2752e/

    00
    Was this answer useful?

    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.

    Looking for more?
    here are more questions about...
    Raised Garden Beds
    Join Us - Sign up to get all the latest gardening tips!

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

    Learn More