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This is a discussion on orchids in coconut husk fiber within the General Orchid Culture forums, part of the Orchid Culture category; With most orchids (I don't know what species or hybrids you have), do not assume ...
With most orchids (I don't know what species or hybrids you have), do not assume that you can plant right after blooming without shocking the plant. It is usually better for most plants to wait for new root initiation by the plant. There are, however some types for which the suggestion to pot after
"spike" is done is valid, and we have some plants which we divide and repot while in bloom (carefully, I'd add, for we don't want to lose the blooms). With Cattleya orchids, especially, I wait until I see roots about an inch long on new growth before I repot. Some will bloom before this, and some after, but I follow the same rule. I've had very poor results on certain species where I did not observe this rule, so now, absent assurance from someone more expert than I with the particular species or hybrid I am pretty consistent with that rule. When I want to divide, I plan ahead, and notch the rhizome back about 3-5 growths to see if secondary or dormant buds will be stimulated to produce new rooting growths with the lead growths. Only do this on pretty robustly healthy plants. Only use sterile blades for this, too.
I use coconut husk fiber to line plastic baskets, I'll fill the interior of the baskets with medium that is suitable for that species of orchid.
I find it's a great for oncidiums and cattleya in plastic baskets, they also dry out rapidly which is wonderful for the over waterer that I am.