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Blanket Weed - Quarantined pond plants

Cottage CompostCottage Compost Posts: 496
in Problem solving
Hoping someone can offer some help.

I have been given some pond plants from a pond that has a blanket weed problem.  The plants have blanket weed on them.

At the mo they are in a trug with some water.  I'm planning on giving them a good scrub up, but is there anything else i could do to make sure i remove any trace of the weed before i pot them up in fresh aqua compost / soil and put them in my pond?

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  • DovefromaboveDovefromabove Posts: 88,147
    Blanket weed isn’t actually a ‘weed’ … it’s an algae that forms when the conditions are right for it, so it can appear in your pond ‘as if by magic’ 🙄 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • RedwingRedwing Posts: 1,511
    edited April 2022
    It's a good plan to clean the plants up...... but it's impossible, IMO to completely get rid of blanket weed.  The best most people can do is control it by removal, growing shady plants like lilies and barley straw really does help.
    Based in Sussex, I garden to encourage as many birds to my garden as possible.
  • UffUff Posts: 3,199
    Do you mean blanket weed or pond weed Cottage Compost? Some people get the two mixed up. 
    SW SCOTLAND but born in Derbyshire
  • Cottage CompostCottage Compost Posts: 496
    Blanket weed. Long fine green strands, lots of it. I was hoping somebody might suggest keeping it in the trug and add something to the water and leave it for an amount of time or keep it somewhere dark.

  • AstraeusAstraeus Posts: 336
    I've found Blanket Answer to be the most effective so far. By keeping them in a trug when you apply it, you'd only need a tiny amount.
  • FireFire Posts: 19,096
    I tried the Nishikoi treatment and it did nothing to disuade it once I had it.
  • Mr. Vine EyeMr. Vine Eye Posts: 2,394
    You’re going to get it in your pond to some extent anyway. So don’t worry about it. I just twirl a bamboo cane in the water and fish it out, only takes a minute and keeps it from getting overwhelming.
    East Yorkshire
  • Cottage CompostCottage Compost Posts: 496
    Thank you Astraeus, i think i'll give that a go.
  • FairygirlFairygirl Posts: 55,117
    As @Dovefromabove says, it thrives when the conditions are right-mainly when water warms up at this time of year. It's likely that you'll get it anyway when the plants are in the pond, even if you clear them of it now.   :)
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • Cottage CompostCottage Compost Posts: 496
    Plants have now been treated with blanket answer in the trug. I'll wait 5 days before I pot them up in some fresh aqua compost and put them in the pond. 
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