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Fertilizing Blooming Cattleya

This is a discussion on Fertilizing Blooming Cattleya within the Cattleya Information forums, part of the Frequently Asked Questions category; Having successfully killed my first two orchids I recetly picked up a SLC Hsin Buu ...

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    Mesker's Avatar
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    Default Fertilizing Blooming Cattleya

    Having successfully killed my first two orchids I recetly picked up a SLC Hsin Buu Lady. It has one open bloom with four more coming.

    I have two orchid fertilizers one 20-14-13 and a bloom booster 11-35-15. I know that I need to use 1/4 the amount they say to. I am wondering are these good formulas or should I get something different?

    Also if I mix a gallon is it OK to store the remainder till next time? Or should I always mix new to prevent growth in the jug?

  2. #2
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    Mesker I suggest mixing new fertilizer each time. Considering your formulations I would sugest using the 11-35-15 at the moment at a dose of 0.5 ml or g/ litre of water. Water the roots and spray the leaves in the morning, avoid getting the flowers wet. And I don' think you killed your first two orchids because of the fertilizer, it could have been more possibly due to over watering or under watering and root loss. Wish you luck with this one

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    Thanks Amey. You are right watering was the issue. One of them was packed in too tight of moss, no air flow and to wet even watering every couple weeks. I should have re-potted earlier. As I got the fertilizer and the orchids at the same big box store I wanted to make sure the fertilizer actually was good for orchids not just marketed that way.

  4. #4
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    It's generally a good idea to mix up new fertilizer for watering each time. My suggestion is to not to fertilize at all, or to only fertilize weakly, if you just picked up the plant recently and it still has some buds developing - the problem is that if your fertilizer applied is too strong compared to what the grower's regime was, you might get bud blast (i.e. the developing buds will just turn yellow and drop off). Once the buds have bloomed though you can fertilize as per normal. Using the bloom booster 11-35-15 will help your blooms last longer.

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    I didn't know our fertilizer was stronger than the growers...i'd always thought the opposite. Hmm...thanks for the info! Good to know.

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