Quote:
Originally Posted by johnblagg
LOL I have bought Bletilla striata many times and never had one do well....might be they were in the pkg to long at the store ..whatever reason they have never proven easy for me ...
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Hmm...
I've bought them from every place but an orchid nursery and they've done wonderfully more often than not.
The wholesale nursery that supplies these retail nurseries or garden centers is Van Bleom Gardens. Yup, the same company that sells tulips and daffodils and such to places like The Home Depot, Lowes, OSH, and just about every nursery or garden center in the United States.
I always pick out the ones with the most number of large shoots. They should look like a large dog's canine teeth.
If the tuberous growths show any signs of molding or rotting, I don't purchase them.
I grab a pot that's about the same size as the tuberous growth, and I put some woodland type potting soil, (with or without limestone, or dolomite, it really doesn't matter) and put it in bright indirect light. I put limestone in there because I know they're native to China, and China is "the limestone capital of the world". If the potting soil doesn't drain well, I just add more perlite or pumice to the mix. They're grown outdoors all year round. I allow it to dry out between waterings. I don't water at all when they drop their leaves. I resume watering during very late winter to early spring.
It has problems when it's grown too warm during dormancy. If they're kept warm during the period when they're supposed to be dormant, they just keep growing and exhaust themselves to death in the long run. But other than that they're really easy for me to grow.
They should not be grown out in heavy snow. They can handle very light frost, only if they're protected. For safety, I wouldn't go below 36 F.
The ones you're experiencing problems with might be getting eaten by snails, slugs, cutworms, or locusts. Particularly if they're grown in the ground.
A couple of side notes:
They grow from stem tubers. Don't be surprised that the tubers end up turning green.
Compared to some other terrestrial orchids that are very stingy with root growth, Bletilla striata grow roots pretty freely and produce a good number of them as well.