Nice to see this, very uncommon cactus over here.

Nice one, sunshine.

I presume that you have it growing outdoors? I probably could here, if a) a dared & b) if I ever got the chance to get my grubby mitts on one.

LOL

Fof

It is outdoors but protected from rain. I am surprised these 4 Corner plants have done so well so far---- out summer low temps are usually above 80F with loads of humidity. In winter I water the high desert plants with a few ice cubes on only a few occasions.
C&S --Well they keep me off the steets & they keep me out of trouble !

Later

David

Very nice.

This species grows like a weed here in NW Wyoming. It, and the closely related P. simpsonii, are the first to flower in early spring.

Dave in Wyoming
Expecting first snow today at low elevations

Dear Dave,

I wish there were some weeds from Delaware that I could send in trade. Even for simpsonii.

Al