If you see a lot of change during the winter from a fertilizer, it's not
always a good thing. Your plants should be resting or blooming this time of
year, not growing. So the fertilizer should not be forcing them to grow.
If anyone more experienced than myself dissagrees, please jump in.
Murri
"Jack" wrote in message
oups.com...
The explaination that I got was that is that urea breaks down slower in
soil, but potting medium in most orchid culture is aseptic (clean or
inorganic) medium than lacks the microbes to break down the urea, which
is why I was told to buy urea free fertilizer, as the urea still forms
salts that affect the plant.

Also, how do you like SuperThrive, I bought some the other month and
have been using it since then (9weeks) I din't loose any plants to
transplant shock, but haven't seen any "Super" results other than that.

Jack