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  • Black pea grass

    I have couch grass (or twitch) in a few places. I also have what this house has named Super-Grass. I guess it's just twitch, but because it's managed to grow among the roots of the pomegranate tree, the previous owners never really tackled it. It is now about .75 cm across, or more at junctions!

    As it was impossible to dig it by hand, we had to rotovate it (I know, I know) which caused it to go everywhere, but despite what everyone says, it made it much easier to deal with. 1) the soil was now loose instead of compacted, and 2) the Super-Grass was now in small pieces, making it much easier to get each piece out of the ground as soon as it showed its head.

    At the risk of the pomegranate, we're even digging down, spraying water on the roots to remove all soil, and wiggling the grass out with a 'garden hand fork with only one prong left' tool.

    It's painful.

    And that's the easy grass. The hard one looks like a small black pea*. It spreads via a root-like link, which grows into another small-black-pea... It's all over the effing place, and unlike twitch (glaringly white), a small black pea is verrrry hard to see against brown soil (they can be grape sized, down to 1mm, or less). So you have to wait until it starts to germinate (so you get some White to see), dig the area over, water and water (soil dries out fast here, and you want them to stay active), wait for the ones you missed to germinate, water and water, repeat and repeat... All the while it's completely pointless planting crops in the area as you can't hoe this grass, so you'll just end up having to dig it all over again.

    Yes, I typed a lot. Yes I'm very passionate about this. Yes I've been doing this day after day after day (with help from my other half when she can). I can only continue by convincing myself that when it's all out, it's out.

    So twitch is light-weight!

    Stay calm and carry on!

    *Please, if anyone knows what it is, please tell me! An enemy with a name is less scary! ;-)
    Last edited by zazen999; 27-04-2012, 06:07 AM. Reason: making it scan better

  • #2
    All that typing and no replies *sob!*

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    • #3
      I did try googling your super grass with black pea root nodules, but got nowhere at all. Have you tried asking a local what it is?
      Last edited by Two_Sheds; 27-04-2012, 05:58 AM.
      All gardeners know better than other gardeners." -- Chinese Proverb.

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      • #4
        Can you take a photo for us? Tagging a question that needs a response onto someone else's thread isn't the best way to get any answers as people often only read the first post. So I'm going to move yours onto another thread of your own, if that's ok.

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        • #5
          I googled too, again, nothing.

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          • #6
            I haven't a clue what it might be, but I commend your hard work and patience, it must be exhausting. Hope someone can identify it for you.
            Granny on the Game in Sheffield

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            • #7
              http://www.nbs.csudh.edu/biology/pro...aegracilis.pdf
              Black bent - Weed information - Organic Weed Management
              also found speargrass or nutgrass with black rhizomes, so it could be anything really...

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              • #8
                I shall take photos tomorrow, in the meantime, thank you for the replies! :-))

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                • #9
                  Let a dead thread be reborn!

                  I have finally found out what it is:
                  Cyperus rotundus - Wikipedia, the free encyclopedia

                  Note to self: commonly known (somewhere) as Purple Nutsedge

                  • "Cyperus rotundus is one of the most invasive weeds known"
                  • "Its existence in a field significantly reduces crop yield, both because it is a tough competitor for ground resources, and because it is allelopathic, the roots releasing substances harmful to other plants"
                  • "The difficulty to control it is a result of its intensive system of underground tubers, and its resistance to most herbicides. It is also one of the few weeds that cannot be stopped with plastic mulch"



                  Oh, yay...
                  Last edited by Zenithtb; 12-02-2013, 01:15 AM. Reason: Added self-note

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                  • #10
                    Knowing what it is, is half the battle Well done for identifying it.
                    Just one more thing - please don't send me any

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                    • #11
                      It looks a bit like horsetail, in that whatever you do to the top growth it can just keep regenerating itself from underground Nightmare.

                      On the plus side, there are quite a few uses listed for it on the Wiki page. If we have a major food crisis, at least you can eat it

                      Good luck

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                      • #12
                        Yeah. And upon a second reading, noticed Taff hit the nail on the head aaaages ago :-( Another common name is Nutgrass, which he mentioned. Back in April last year. I could cry.

                        I have the Purple not Yellow variety, which tastes bitter (yellow is the almond-y one), so no, they're not even a snack while weeding :-)

                        But yeah - having a name makes it better, even if the info on this weed makes it worse (it's a worse weed than even I suspected)...

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                        • #13
                          Originally posted by SarzWix View Post
                          It looks a bit like horsetail, in that whatever you do to the top growth it can just keep regenerating itself from underground
                          Horsetail isn't that bad, if you tackle it correctly. It's a poor competitor and hates shade, so surround it with taller plants.
                          Keep cutting, pulling off the top growth as it appears, and you'll keep it under control. It won't be eradicated, but it won't be a nuisance.
                          All gardeners know better than other gardeners." -- Chinese Proverb.

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