Roses

Discussion in 'Plant Propagation' started by C.Dragonworks, Sep 14, 2006.

  1. C.Dragonworks

    C.Dragonworks Active Member

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    Location:
    S.TEXAS USA
    I am not new to Horticulture . I studied in San Diego at Cuyamaca College.

    I moved back to S TX and I am having FITS trying to propagate my roses.... Is there something to help them here???? I have had no luck all the cuttings turn black no matter the media used or the husbandry tried. I am at a loss to explain this.... Any good ideas??? Thank Cat
     
  2. GreenGoose

    GreenGoose Active Member

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    Stock plants probably have blackspot and other fungi spores. These are spread by hand and by splashing water. You will need to dip cuttings in a fungicide before striking if stock is not clean.

    If your stock is clean:
    1. Recut with a razor blade before striking.
    2. If you use rooting hormone, knock excess off before striking.
    3. Reduce foliage on cutting to a minimum
    4. Bright light before 10 am and after 4 pm but 50% shade between.
    5. Don't water at all without some visible cutting stress then water minimally and don't water foliage, only the sustrate.
    6. No water after 3 pm
    7. Substrate that drains easily: Clean sand (cooked in an oven if necessary) with a little peat moss(10%) added.
    8. Winter cuttings will need a lighting schedule longer then twelve hours bright enough to convince the cutting it is spring. They will need lighting until sprin occurs because once struck the cutting must produce a 'flush' before going dormant or it will die.
    9. Grow lites aren't needed . Just enough light to make the cutting believe it is spring probably 100 watt bulb, 4 feet above cutting every 10 feet of bench.
     
  3. C.Dragonworks

    C.Dragonworks Active Member

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    Location:
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    Thanks, I had not thought about the fungi spores....It seems nearly all roses in TX have Blackspot... So I will treat the cuttings with fungicide.... I will try them in the house this winter and see if maybe some take... Great info! Cat
     

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