Hi everyone, spring time again
I've bought a bunch of seeds to grow this season - can't wait to plant them but before I do, I'd like to ask some questions.
Here are the seeds I have with me now:
-Lithops (various, some of the easier species to grow)
-Astro myriostigma (various forms)
I've grown some succulents from seed before but from what I see cacti are a bit different - they seem to like warmer temperatures to germinate (understandably) as well as a rockier medium.
I've bought a bag of propagating sand because the sand I used last time was too fine - this seems suitable. I've also heard that it's better to sieve out the larger stuff and only use that? I tried that with a pod of golden barrels a few months ago just to try it out, and while a lot of them germinated, they didn't last very long - it seemed they couldn't really get a grip in the rocky material and the gaps between the pieces was too large... I'm not sure if I should really be sieving out the smaller pieces because of this.
I've also thought about mixing in a bit of soil (I've got a light, fine seed raising mix) which could help fill in the gaps... and I also see that some mature cacti are planted some sort of crushed scoria, but I haven't heard of anyone propagating seedlings in this so it might only be suitable for larger plants.
I'm also wondering if a heat mat is necessary or beneficial at the moment - while I have germinated some agave attenuatas quite successfully with no extra heating, I'm wondering if these seedlings will benefit from extra heat while germinating, especially since it can be controlled and kept quite constant. I do have one, so it's always an option if there's some benefit to it, even in spring.
(what's this emoticon meant to show anyway..)