Watercress

Discussion in 'Garden Pond Talk' started by Jill, Aug 21, 2017.

  1. Jill

    Jill

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    Can watercress (the large cress leaved sort) help purify water along with water mint? And is it true Koi & goldfish adore watercress?
     
    Jill, Aug 21, 2017
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  2. Jill

    Lisak1

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    Yes on both counts. It is a great filtering plant - it catches lots of sediment in it's roots. Just be aware that A. it grows like crazy and B. the roots form dense mats which can re-direct water flow. You have to be careful that it's not forcing water out of the pond. It's very easy to pull out though. And it's edible! It likes to grow in moving water - stream beds and waterfalls are perfect.
     
    Lisak1, Aug 21, 2017
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  3. Jill

    moby

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    Lisa, would watercress grow if not actually planted in a basket then? I don't particularly want it in my waterfall/stream area but if I got a free floating clump and anchored it to the rocks beside the outfall of the waterfall, where the water is turbulent, would that work do you think? I've not got any shelving around the waterfall's outfall as that's where my pond has sheer sides to the deeper level.
    It's late in our UK season to do this now as I think it's days would be numbered, assuming it dies off during winter, but I was thinking maybe next spring I might try this, if only as a possible food for my fish, Koi, orfe and mixed goldies. I hate the stuff myself, yuk.
     
    moby, Aug 21, 2017
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  4. Jill

    mrsclem mrsclem

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    It will grow without being planted . I put stems in window boxes I have pond water running thru and within 2 weeks the roots fill the bottom of the boxes and clog the drain holes. It will die off during winter but easy to get in the spring from the grocery store!
     
    mrsclem, Aug 21, 2017
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  5. Jill

    moby

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    Thanks Mrs C!
     
    moby, Aug 21, 2017
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  6. Jill

    Lisak1

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    Yes it definitely doesn't want to be in a pot. I just tuck it between rocks or plop a rock on top of the stem and let it do it's thing. And actually it prefers cooler weather, so I would try it now. It's cheap to buy here - I get a bunch for a dollar at the market - and grows so fast you'll have plenty before you know it! Also, mine doesn't always die off - I've had a couple years where it has started back up in the spring. So you never know! You might get a jump on next year!
     
    Lisak1, Aug 22, 2017
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  7. Jill

    moby

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    Thanks Lisa :)
     
    moby, Aug 22, 2017
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