Is it safe to use superthrive for orchids in leca?

[Ray]

Originally Posted by ALToronto

Ray, so how is it different from KelpMax in terms of what it does to the plants? Does it help to use both ST and KelpMax?

Kelpmax contains natural auxins and cytokinins, although it's the auxins that are really the benefitial ingredient, and they predominate by far.

SuperThrive contains synthetic auxins.

I can think of no good reason to use both products, as they are supposed to do the same thing to the plant.

My own observations are that the KelpMax is more effective (not a sales pitch, but an explanation of why I have switched in my own regimen). Now, whether that is due to the specific hormones in them (Kelpmax has 18 different ones, ST has 1), or due to relative chemical stability (the hormone in ST will be good for about a year from manufacture if kept cool and dark; much shorter time if allowed to warm up or be exposed to sunlight. KelpMax has a preservative in it rendering it stable for at leat two years according the to producer) I cannot say.