Japanese Knot Weed Fertiliser
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Blowin Rank attained: Vegetable garden tender
Joined: 20 Aug 2008 Posts: 930 Location: Drimoleague, Co Cork
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Posted: Sun Mar 11, 2012 6:59 pm Post subject: Japanese Knot Weed Fertiliser |
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I've read that spuds are one of the crops that prefers an acid soil.
Somewhere recently I read that someone had tried eating Japanese Knot Weed and found it to be quite similar to rhubarb, i.e. presumably acidic, so it occurred to me that, providing I made sure there were no roots or seeds, and I chopped it up very small, is it likely to make good fertiliser? I do actually have a garden shredder which would make things easy.
Of course, at this time of year, all there is is last year's dead stalks and I'm wondering whether any of those with scientific knowledge could tell me if any of the acid is likely to still be present in them? That is, would they be usable to enhance the soil? _________________ A novice gardener on newly cultivated, stoney ground. |
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ian Rank attained: Ash Tree


Joined: 22 Jun 2007 Posts: 237 Location: Tallaght
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Posted: Sun Mar 11, 2012 7:33 pm Post subject: |
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you can always do avery simple litmus test yourself and get an answer to your query. |
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Seedling Rank attained: Hazel Tree

Joined: 28 Feb 2011 Posts: 31 Location: Cork
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Posted: Mon Mar 12, 2012 9:27 am Post subject: |
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This is highly inadvisable. Japanese knotweed is an agressive invasive species that can regenerate from very small fragments of the parent plant not just seeds or plants. Once it has established, it is extremly difficult and expensive to eradicate. This could potentail pose you hige problems and I would definitely advise against it. It may even be illegal? But I am not sure
See http://invasivespeciesireland.com/ |
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simonj Rank attained: Pedunculate oak tree

Joined: 12 May 2010 Posts: 305 Location: Connemara
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Posted: Tue Mar 13, 2012 1:35 am Post subject: |
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Japanese knotweed!!!! That is absolutely the last thing I would ever use, eradicate at all costs more like it.
Kill it - kill it - kill it _________________ My Garden blog
http://www.irishkitchengarden.com/
Last edited by simonj on Mon Mar 26, 2012 10:52 am; edited 1 time in total |
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tippben Rank attained: Vegetable garden tender
Joined: 15 Jan 2011 Posts: 921 Location: north tipperary
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Posted: Tue Mar 13, 2012 8:12 am Post subject: |
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Yep, it is illegal to plant it, allow it to spread, or introduce it to a new area. In addition, it can grow from any small bit of stem. Shredding it up is a recipe for disaster! I have tried cooking it like rhubarb, and yes, it is edible, but tastes so disgusting that you'd have to be starving to bother. |
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Blowin Rank attained: Vegetable garden tender
Joined: 20 Aug 2008 Posts: 930 Location: Drimoleague, Co Cork
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Posted: Tue Mar 13, 2012 4:08 pm Post subject: |
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Thanks All. That's one for Room 101. _________________ A novice gardener on newly cultivated, stoney ground. |
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ceathru Rank attained: Hazel Tree

Joined: 17 Mar 2011 Posts: 5 Location: Co. Kerry
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Posted: Sun Mar 25, 2012 9:20 pm Post subject: |
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Two years ago six bottles of Knotwine out of some of the Japanese Knotweed by which I'm surrounded. It was DELICIOUS, so much so that I've picked and frozen a whole heap of knotweed this year, enough for about 18 bottles of the stuff. If you want to give it a whirl, just google Japanese Knotweed Wine. Plenty of recipes out there! |
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