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weeds/self seeders/mulch

Posted by Shelleyvw SA Aust (My Page) on
Fri, Jun 3, 05 at 19:30

Hi,
I live in SA and would love a lush informal looking garden with plants self seeding and lot of pretty flowers amongst the perennials and natives. I have mulched the whole garden to keep down weeds and moisture in in this very dry climate. I used a bark mulch as on gardening Australia Malcolm Campbell said in SA we need non porous free draining mulches so that what little rain we have isn¡¦t absorbed by the mulch and goes straight through to the plants. Trouble is the mulch suppresses self seeding as well as weeds ƒ¼ when this bark has broken down would there be a better mulch I could use?

Shelley


Follow-Up Postings:

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RE: weeds/self seeders/mulch

I used to have a self seeding garden - but the drought has put paid to that. Not even the weeds are sprouting!!

Normally, I mulch with leaves (not natives because they don't tend to break down very well) and grass clippings (spread out and kept away from the trunks/stems). The council kindly supplies bags for leaf collections in autumn and I get a lot of leaves this way - I always ask first.

Any soft prunings/spent annuals/etc are run over with the lawn mower (although I have heard that some people have mulching machines for this purpose) and that also goes on as mulch.

I rake up the debris from under my pine trees and use to mulch around camellias.

I had a lot of small animal life leaving under the mulch which I believe adds to soil fertility (but they seemed to have died of thirst). Any leaves which do pop up are easily removed.

I might be a bit cynical but I think that the idea of pine bark mulch was thought up by some whizz kid in the timber industry who didn't know anything about gardening. Think about it - not even pine seeds sprout in it.

I also use the fine stuff from the bottom of the wood heap - and several kurrajongs and one peppercorn tree have sprouted. They are currently living in pots waiting for "better days" to move to a rural home.


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RE: weeds/self seeders/mulch

Thanks wombat for your suggestion. I would agree that pine bark mulch is unnatural. It is what we used before I got bitten by the gardening bug. The last mulch I put on wasn't pine bark though I think it was gum mulch but I will be choosing something different from now on. It hasnt stopped weeds coming through nor the Californian Poppies which I quite like. But I certainly am looking for a finer mulch. Have you any suggestions for commercially sold mulches as my garden beds are too big for me to produce enough mulch at home. I do have a mulching machine but it takes a lot of clipping to produce only an small amount. And like you we have a drought here and need all the mulch we can get.

Shelley


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RE: weeds/self seeders/mulch

The reason pine bark mulch is not recomended for most gardens is that it is fairly acidic. Hence it is good around your camellias, and also in a fernery. I would think that, in a strongly alkaline soil, it would make a good additive to compost, even if not desired as a mulch. I grow all my pacific coast irises under the neighbors overhanging pine trees. I allow a reasonable amount of pine needle mulch to stay on the beds. They irises thrive there, but their native habitat is pine forest in california.
BTW - sorrel grows very well in pine bark mulch!


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RE: weeds/self seeders/mulch

Hi Sparaxis,

My garden is on limestone so you are right I dont think a little acidic matter will harm it :-) I have no trouble getting plants I have planted to survive in. They aren't growing very fast but I think this is more to do with where I live and lack of rainfall. Thanks.

Shelley


 
 

 

 


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