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My plants form emmersed leaves, while submersed...

Discussion in 'General Plant Topics' started by Gilles, Oct 29, 2009.

  1. Gilles

    Gilles Lifetime Members
    Lifetime Member

    Aug 6, 2008
    Likes Received:
    Local Time:
    10:57 AM
    Hey There,

    I have this really wierd problem which manifested itself first on my Eichornia azurea

    When i trimm the plants, the plants tend to form emmersed leaves after a few days, and develop new ones, although they have been submersed all the time. Any idea on how this is even possible?

    I did not let the azurea reach the top of the tank, i trimmed it way before it hit the surface. The other plant i am having this problem with now is the Limnophila Gigantea.

    Nutrient problems? Can i cut the plants head so it will form new submerged leaves?
  2. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

    Jan 23, 2005
    Likes Received:
    Local Time:
    10:57 AM
    If you let it hit the surface for more than a day or two, they can sometimes form the ugly emergent leaf morphology.

    I've seen it when they did not do that every so often also. They might get confused:)???
    L gigantea also, but it's a rare, temporary thing. It should revert back.
    A few plants do this.

    It's a fast growing weed that is banned in the USA. That does not mean many hobbyists did not have a grow it a few years ago. I found some in Florida once and killed it. Look like someone who kept ponds tossed a bunch of out in a single spot.

    Since it can get a full 35cm across, and can grow 5-20cm a week, it's not that suited, however is a pretty and dramatic plant submersed. Few keep it here and then only a few pond keepers down south in the USA last heard.

    But regular water Hyacinth is legal:rolleyes:
    More market I guess for that and it's too late to solve anything from banning it.
    the same could be said for Hydrilla, but they still banned that one:rolleyes:

    Not really consistent are they?

    The plant will use a lot of nutrients, particulalry NO3.

    Tom Barr

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