Phal column sticking out of forming buds.

[Ray]

In the case of Superthrive, they have apparently changed the formulation, as it used to have NAA on the label. Vitamin B1 is also a root growth stimulant, but not a particularly good one.

Many moons ago, I did an experiment in which I intentionally overdosed the auxins, and all of my phal blossoms were deformed. The next time they bloomed after I ceased that experiment, they were all fine.

Manu - you can get KelpMax from C & C Orchids in Hamilton ON.

[Manu]

Originally Posted by Ray

In the case of Superthrive, they have apparently changed the formulation, as it used to have NAA on the label. Vitamin B1 is also a root growth stimulant, but not a particularly good one.

Many moons ago, I did an experiment in which I intentionally overdosed the auxins, and all of my phal blossoms were deformed. The next time they bloomed after I ceased that experiment, they were all fine.

Manu - you can get KelpMax from C & C Orchids in Hamilton ON.

Thanks Ray, I'll definitely get my hands on some, didn't know it was available from Canada..

And thanks for sharing your OD experience with Auxins, I'm pretty convinced this is not a genetic mutation and that my case is related to SuperThrive... I don't believe in coincidences! The lindenii has bloomed at least 5 6 times since I have it and was always normal. Suddenly it's exposed to some SuperThrive and I have a deformed bud. Same for the shilleriana... Maybe if it was just one plant, but two seems like a dead giveaway that this product is the culprit!

[King_of_orchid_growing:)]

Originally Posted by Manu

And thanks for sharing your OD experience with Auxins, I'm pretty convinced this is not a genetic mutation and that my case is related to SuperThrive... I don't believe in coincidences! The lindenii has bloomed at least 5 6 times since I have it and was always normal. Suddenly it's exposed to some SuperThrive and I have a deformed bud. Same for the shilleriana... Maybe if it was just one plant, but two seems like a dead giveaway that this product is the culprit!

Should Superthrive be the culprit, epigenetics is still in play.

It is not "coincidence".

You've got most of the explanation of what happened.

Now you have an idea of the cause and a rough idea of the resulting process that led up to the final result.

[Roberta]

Originally Posted by Manu

Thanks Ray, I'll definitely get my hands on some, didn't know it was available from Canada..

And thanks for sharing your OD experience with Auxins, I'm pretty convinced this is not a genetic mutation and that my case is related to SuperThrive... I don't believe in coincidences! The lindenii has bloomed at least 5 6 times since I have it and was always normal. Suddenly it's exposed to some SuperThrive and I have a deformed bud. Same for the shilleriana... Maybe if it was just one plant, but two seems like a dead giveaway that this product is the culprit!

Ray, thanks for the experiment! My observation with Catts (mini-Catts as I recall) was only anecdotal. Some groups may be more sensitive than others. But it sure looks to me like the evidence is stacking up against Superthrive. Manu, If you stop using it, and next year's flowers are normal, I think that clinches it. Keep us posted!