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Black root nubs on phalaenopsis orchid

Kathy B
2 years ago
last modified: 2 years ago

I'm hoping someone can help me as I've tried in a few other orchid groups without success.. I have a phal that's 3-4 years old. Always had great root system & long lasting blooms. This past January it was left in a hot south-facing room (central Florida) for a while & sustained heat & sun damage. It still spiked & bloomed but the blooms didn't last long. It's now growing a new leaf. Problem is the new root growth from the stem keeps turning black & stops growing. Roots in the pot are good & plentiful. I'm watering when dry, fertilizing with MSU weakly weekly & I've sprayed/soaked in physan 20 a few times. I can't seem to find a way to post a photo here.

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