Hi TJ
The card survives long enough to kill the weeds but it does break down so the mulch will need to be
topped up too about 4" after the card has gone.
I would be very surprised if it lasted longer than 12 months.but it works and that's what matters
plastics are what lasts for ever and a day
regards John
Worth a try then. I'll do a bit of experimenting. Thanks TJ.
All I do is cut the grass or weeds down and put the cardboard over the area. Then I cover it with about two inches of mulch, dry. I then cut a hole (maybe 8-10" across) where I want to plant something. I notice that the rain gets into the soil just fine and the cardboard/mulch retains the moisture for quite a long time without a hint of being waterlogged. Since this is the first year I'm using the cardboard, I can't really answer the durability question, but the weed mat was done about a week before the cardboard (refere to my prior post for visual). The bunny/tree hugger crowd claims that cardboard stays in the environment for about a gazillion years or something, so I would think it would be at least 3 or 4 years before I would have to reapply the FREE cardboard treatment. By then I would probably want to change something anyway. I like this method because it covers a very large area very quickly and cheaply and is quasi-biodegradable.
Caveat (as usual)- different results may be had in different areas. Always experiment on the cheap or free plants first. Do not try this at home, I am a trained professional in a controlled garden environment- serious injury may result from misuse of this method- no warranty expressed or implied and user assumes all risks, but I get all the credit if it works.
The Dixie D Short Line "Lux Lucet In Tenebris Nihil Igitur Mors Est Ad Nos 2001"
Thanks tj.
Just so I do well on the test, when you lay the cardboard do you soak it in before you mulch? Have you had to repeat the process much? Do you make small drain holes or do you find the rain doesn't waterlog the covered bits? In Japan we have a rainy season (just coming to an end) where it can rain continuously for a week, or just heavy hard rain for 24hrs. It sounds like a great way to stop weeds if there are no drawbacks...
Cheers,
Tom Trigg
M. Gilger - President and Chief Engineer MM&G web
Web Site: http://mmg-garden-rr.webs.com/
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