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Weed prevention in moss ‘carpet’

Posted by LKV_z6_CT z6 CT (My Page) on
Thu, Jun 23, 05 at 11:17

After a couple years of eliminating the struggling grass my shady front entry ‘courtyard’ now has a wonderful green moss carpet. While there are fewer weeds now that it is thickly established it is still a hassle to keep after the dang things. I have found that using Round-up damages the moss sufficiently to allow an area where new weeds have a chance to become established and the dead weeds still need to be cleared away. Has anyone experimented with using pre-emergent products such as Preen on moss? As it works on preventing seeds from germinating and moss produces spores rather than seeds in theory it wouldn’t disturb the moss’s regeneration. I figured best to see if anyone else has tried it before I start experimenting.

Follow-Up Postings:

RE: Weed prevention in moss ‘carpet’

Your query on Preen interested me enuf to go to check it out directly with the company:
Preen Garden Weed Preventer can safely be applied on dry, weed-free garden soil, around the established plants that are listed on it's label in the recommended section ( Lightly water after application to activate the product.
We cannot recommend this product be applied around a non-recommended plant (Moss and Liverwort), as we have not done tests to make a safe recommendation.
Thank-you for your inquiry and for your wonderful support of our Preen products!

RE: Weed prevention in moss ‘carpet’

I called Preen's customer service number last year and the woman I talked to said it would turn the moss brown.

I use a couple of techniques on my moss hill, which I cleared of grass three years ago. For annual weeds such as pepper grass, wood sorrel, etc., I use an electric weed whacker at an angle, very carefully skimming the top of the moss - like shaving. I make sure I whack before they go to seed, and blow the debris off when I'm done. Each year I've had fewer and fewer.

I use a potato peeler to dig up dandelions and other tap-rooted weeds - the potato peeler slices through the moss and lets me lift te weed right through it.

Try books on tape or CD when you're hand-weeding!

RE: Weed prevention in moss ‘carpet’

I think that corn gluten will help reduce any weed seeds from sprouting. It doesn't kill weeds, only prevents the seeds from sprouting. I have not seen it harm moss, but that isn't to say it won't. Try a small area of it. Preen is a similar product, but also contains some fertilizer. Corn gluten will break down into nitrogen eventually.

RE: Weed prevention in moss ‘carpet’

I'm still in year one of cultivating my moss lawn. I killed all the grass, and sure enough, the moss is reemerging. In some places, there is just a green tint to the dirt. I need to get a battery for my camera to document the growth. I've had a very Zen summer so far, unthreading the spines of zombie wire grass as well many assorted weeds, and carefully tamping the dirt back in place.

I like the carrot peeler tool idea. I've been using a big grilling spatula for harvesting moss. Who needs gardening tools with moss?

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