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Trouble with Carex Testacea

Posted by clarendon (My Page) on
Mon, Sep 27, 10 at 5:31

Following up on the search for ideal soil for Carex Testacea, I followed the instruction of the nursery to mix in farm manure, and one week later found that the tips of the leaves wilting away and turning into twisting straws. Is this caused by the farm manure or is it a normal process this time of year?

Anyway, I remembered the advice from this forum that these plants don't want nutrition, so took it out of the ground back into the pot. Now I will treat it like other rock plants, which like sandy soil and peat and need little nutrition. Do C. Testaceas like peat as well?


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RE: Trouble with Carex Testacea

  • Posted by donn_ 7b, GSB, LI, NY (My Page) on
    Mon, Sep 27, 10 at 8:23

I'd say it's unlikely to have been caused by the manure in such a short time, unless the manure was fresh, hot and un-composted. More likely simple transplant shock. What condition was the rootball when you installed the plant?

Peat mixed into the soil is a good thing, providing acidity and aiding drainage while holding some moisture during dry spells.


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RE: Trouble with Carex Testacea

Thank you very much for your reply. I got the manure from a garden center. I think it's well rotted one because it has no smell. Are you saying the manure would be fine if I leave the plant there long enough? Or wouldn't it be best to get rid of it and redo the soil with sand and peat?

The root ball was in good condition, I presume. The plant was doing beautifully before planting. I soaked it in water before planting it.


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RE: Trouble with Carex Testacea

Alternatively, I could mix in a little bit of nutrition (generic compost and/or farm manure) into the soil, balanced by peat. Would this be better?


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RE: Trouble with Carex Testacea

  • Posted by donn_ 7b, GSB, LI, NY (My Page) on
    Tue, Sep 28, 10 at 7:09

No...I did not say the manure would be fine if you leave the plant in it. I said it would take more than a week to show negative effects from the manure.

As I said in your other thread, the plant does not need manure, compost or fertilizer. Lean, moist, well-drained soil is its preference.


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