The drying effect of cinnamon on orchid roots often kills them. There are many mentions of this on the internet on what look like legitimate orchid sites. In my own experience, I put cinnamon on the roots of an orchid that was only slightly bad, and the roots turned dark brown, but the middle area did not die. It took nearly a half a year to get any branching roots or new roots. In my reading, orchids in the right situation will totally regenerate new roots even if they are all cut off. Having a few broken roots is no big deal. I have read also that lysterine may be a better fungal spray than cinnamon. Cinnamon is good for quickly drying cut leaves (for instance if you need to cut off a bad spot) or the nub of a flower spike.
Plants have their own enzymes that they use to create a scab-- just like humans have a scab if they get a cut. I'd let the plant take care of itself.
|