Anyone have any experience with using this (also called GA3) as a growth enhancer? I bought some to help germinate an alpine birch that I bought seeds for and was planning to try it on some of my semps.

I have a little bit of it but haven't actually tied it. I would be interested in reports from anyone who has tried it. Hudson's catalog often notes seeds that germinate better with GA3.

Hi Mark, never tried it either! You'll be the first I think, so please do let us know how it goes!

Mark would you be interested in posting to this thread your experience using this product? I have heard of it for helping to germinate seeds.

I use it for some seed, like Datura and agastache. I've only grown sempervivum seed once, but it germinated fine without. So does sedum, but some sedums need cold stratification.

I mix up the GA-3 at 500 PPM and put it in an aluminum spray bottle and just spray the soil before I plant or the paper towel if I'm using the Deno method.

Is it safe to use on vegetable seeds?

Yes.

Thank you Celene.