Hi there,
I found your post and I hope you find your Puyas. I have both and they are really cool plants. I don't however have any pups. What I do have is a bromeliad that might just make it where you live. I live on the central coast of California, inland far enough to get some real heat in the summer and we too get some freezing nights in winter. I have "Queens Tears" a bromeliad that has performed admirably for many years outside in the sun/part shade. I think if you put it in full shade where you are it will be just fine. It is also quite drought tolerant or I surely would have killed it by now. It pups yearly and I have already given it to all my friends and relatives so I have extras. I am interested in your cassia seeds, small plants would be preferable, and do you have any succulents or other drought tolerant plants you could trade me?
Dee

I have these and am williing to trade for species of Bromilia or other plants. I'm helping friends in Palm Springs landscape.