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Old 08-17-2012, 12:20 PM
16 posts, read 26,005 times
Reputation: 32


Im reading how some people are using cardboard as weed block. Seems to be a good idea for temporary weed control as in a garden that you re-do each year. But Im looking for permanent weed control in landscaping. I am reading that it works... but cant bring myself to belive it since I know the cardboard will break down. Wont that allow the weeds to just re-emerge even healthier the following year after the worms have had a hay-day with the cardboard?
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Old 08-17-2012, 01:46 PM
Location: ๏̯͡๏﴿ Gwinnett-That's a Civil Matter-County
2,118 posts, read 6,055,367 times
Reputation: 3540
There is no such thing as permanent weed block.
Not even concrete will block weeds forever.

You can use natural mulch.
A few sheets of newspaper is pretty good mulch actually, you don't need cardboard. And I wouldn't use cardboard.
You can also use chemical pre-emergents.
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Old 08-18-2012, 12:24 PM
Location: Forests of Maine
34,880 posts, read 56,685,657 times
Reputation: 26254
Our experience has been: You can bush-hog an area, knock everything down, cover it with cardboard, then potting soil. In the following growing season you might only see one or two of the really well established perennials come up through that per-square-yard.

The real problem is the seed that blows in on top of your bed. Because the second year you may have 40 or more weeds popping up per-square-yard. These are not from under the cardboard, but from on top of the cardboard.
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