MSU Fertilizer Formulated for Orchids ?

[K-Sci]

Originally Posted by Ray

There’s also a 12-6-13 version for RO.

1) they are NOT truly “MSU” fertilizers
2) they ARE knock-offs formulated for-, and sold by Wayne Roberts of Roberts Floral Supply - orchidmix.com

He has defined them as “second generation” versions, but he merely adjusted the original formulations to make them be unique. If I remember correctly, he also used a pink indicator dye instead of blue.

Anyone who believes they are “improvements” is fooling themselves. Different and fine to use? Sure. Improved? No.

I was hoping you'd be able to shed some light on this subject.

Are the concentrations of Ca and Mg in MSU high enough to make a difference? Would they just precipitate out anyway due to the presence of the other ingredients.

What do you think?

-Keith