Puya
Ellen Hornig (Sat, 05 Feb 2011 14:19:58 PST)

I have several in clay pots, where they're easy to grow. They overwinter in
a quite cold greenhouse (c. 35F), and receive no water from roughly November
through late February. My mix is nothing special: Fafard 52 (a bark-based
mix) with extra perlite added (c. 25%).

If you grow them in containers, you'll have to move them up each year, and
this is a daunting process. Their recurved spines are vicious. I'm not
sure how many more years I want to struggle with them!

Ellen

Ellen Hornig
Oswego NY 13126 USA
USDA zone 5b