Hello Tina
I've got the Kaktusy special 2: it has a lot of habitat photos, and there is only one clumping plant and that is a gummifera.
There are some nice plants growing in cracks in the rock, maybe you could give it its own specially made pot with the scorch hidden.

Hello Pattock
The wonders of urine. Is a probably a book sized topic. in the 1800 people could sell theirs for the urea.
Though I never knew it worked as a hormone for plants.
The old ways are the best

Arrived!!! In N Wales ,alongside the census, I know which one I prefer..
Really looking forward to reading. Hairy cacti , it looks like a lorax

Do you mean pee . I'm not sure my will like that rooting mixture

I have been reading some articles about the micro scales on some cactus spines and their ability to move droplets of water even up a downward angeled spine. There are articles on opuntia microdaisys( this one is not one of my favorites I've come into contact with it too many times.) Gymnocalycium ba...

Nice draco Pat
I've managed to lose two even in my Polly tunnel.
The temps hit 0c and they just went to mush, I'll be more careful if I have one again.

Cactus spines have numerous adaptations Shading from the sun protection from cold Collecting water droplets from mists and dew, water coalesce Protection from predation Camouflage Segment dispersal And probably many more. Their are man made material's that are copying the water harvesting abilities ...

I was trying to think of other similar examples and thought of the young plants of pachycereus and carnegiea and the older much less spined adults. I've found a pdf it is mainly about the breakage strength of cactus spines. It's definitely a bit more accessable than the two quite technical articles ...

Hi Darren There was mentioned some strong acids used to separate the cellulose nanocrystals. Doesn't sound like a heathy environment your clothes melting. :eek: I think governments need to lead the change as we become more aware of the damage microplastics are having . The cheapest option isn't alwa...

I think I tumbled down a rabbit hole with this one, I'm really no expert though I found it interesting so thought I'd share. It started off with some thoughts on how much energy my plants and especially the cactus must use to produce there beautiful spines. how are they formed . what are they made f...