Thought I'd try and start this new decade with something (as someone pretty new to C&S) I'd be really interested to see and hopefully something everyone could get involved with. So for this thread post what you consider your most special, most coveted or rarest plant . It could either be a curre...

Wow, thanks Tina.

Very new here so just checking, I pick the next subject and post a new thread? (Will look and see what's come up recently so I don't duplicate!).

Thanks Ian. Was out today so couldn't take readings in daylight - will be in all day tomorrow to take a series of readings and see what they suggest. Will sort some diffuse shading if I'm getting anything above 5-6,000K.

Thank you both very much for your advice.

I've just downloaded a light meter app for my phone (that is allegedly pretty reliable!) and under the raised LEDs the light intensity is 2740 lux and plant pot top level. 6" under the light it is around 6,000 lux so if they are getting too much sun it'll be the daylight. Will measure tomorrow ...

Thinking about it, might I be best to these to a North-west facing windowsill with the light instead of shading or will filtered stronger light probably be better?

Thanks Ian.

I've already raised the light when I first got concerned and I will get some shading on the window tomorrow at seedling level.

The plants are Echinopsis hybrids, Rebutia species (in the wide sense) and a Lobivia scheiliana so hopefully nothing too tricky!

Thanks Esp. I was thinking of putting some greaseproof paper or similar on the lowest part of the window as the sun got stronger in February or March. Is there a physical indicator I should look for in the seedlings to know when the sun is getting stronger? The led is only 27W so I wouldn't want to ...

Due to a significant lack of patience, I've started some seeds off inside already. They are on a South-East facing windowsill which gives them direct sun until 1ish at this time of year but bright light until sunset. I then have an LED striplight in Daylight colour temp (6500K) from 3:30 to 8pm. The...

I'm not sure any Agave species are known for exhibiting dormancy. >90% germination within 2 weeks is unremarkable for good Agave seed in my experience, so getting good germination with GA3 doesn't seem to demonstrate very much, if anything. If you'd got the same results with Cyphostemma or Cumulopu...

BUT did you have a control where none were treated with GA3, otherwise this is not usable information. It's perfectly usable information without a double blind study. The OP asked if any members have used it and with what results which is relevant to what I posted. At no point did I say the GA3 cau...