| Bill,
When i lived in the US and had my collection there, at any given time about 10% of my orchids were in bud or bloom. These days I have a lot of seedlings now so my percentage is a bit off, but if you omit the seedlings it's about 10%.
One thing I did, which I highly recommend, is to buy a blooming orchid (or 2 or 20) of a different genera every month. Many orchids grow and bloom on 6 month or 1 year cycles so if you buy an orchid in bloom in May (for example) then there's a good chance (given proper care) that it will be in flower for you again the following May. By this logic, after a year you should have a collection of orchids such that you'll have something in flower at just about any given time.
My percentage is going to rise dramatically here ina little while because my Cymbidiums and my Dendrobium tetragonums are coming in bloom. They're going to bloom wel this year. All 14 of my tetragonums are in bud and 8 of my 10 blooming size Cymbids are in bud or bloom.
Cheers
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