Perhaps ..."full, unfiltered sunlight the entire day about a month now"...is too much? I don't know why it would in your zone, but it may be possible. Did you acclimatize them when they went outdoors originally? I would imagine that even if they were not, color would have corrected in a month unless they burned - and burn looks different IMO.

Btw, Black Knight doesn't exist according to experts at ICN:.."The name 'Black Knight' must not be used any longer, the name of the plant is Echeveria affinis"...

Thanks for the response Rina. Yep. They’re well acclimatized. And they remained the same color. Nothing changed between grow lights to full sun. And it’s not scorched either. I had another person tell me in another forum their BP gets full sun to get to color up nice. It is evident here it’s getting all the light it needs. So I’m curious if there’s anything else besides light that affects coloration.

No you are going to think I am crazy, but I LOVE the coloring on those and if I could buy a pup, I would.

if you are looking for black, let me know, and I will pick one up for you and ship it.

Mike

Hi mike. Thanks for the interest. I have another clump which I can give to you but I worry about damage with shipment. I have never sent a live plant via usps before. LOL. Would semi bare root be better?