Gardening Blog

The war on weeds: how to bake or solarize weed patches

I’ve been pretty up front with the world as to my losing battle against the dandelions, thistles, and various invasive grasses. But I’m tired of the shame. I am ready to fight back in a big way this year.

Before

 

I picked a weedy spot against the house that is supposed to be a gravel walkway to try an experiment with solarizing–a method of weed killing that basically uses the power of the sun to fry the suckers. Aptly known also as ‘baking’, you cover the area with plastic, weighting it down so the plants beneath are both deprived of oxygen and exposed to extreme heat. You have likely seen this principle in action when the lid for the kids’ sandbox accidentally got left out in the middle of the lawn for two weeks and everything under it turned yellow. Same principle, except we’re doing it on purpose.

I decided to try both clear and black plastic to see if one might me more effective than the other. So far, the clear seems to be working better, but I only put this together last Friday, so the jury is still out. Stay tuned.

 

 

Clear plastic, after five days. I probably should have whipper-snipped everything first, to avoid the seeds.

I just used garbage bags, without cutting them open or anything, so a double layer of plastic, and then weighted them with rocks. Making it airtight would result in a stronger effect, I would think.

UPDATE: July 5, 2013

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