Latin name: Yucca spp.
Common name: Yucca
Originally from: hot and dry parts of North America, Central America, South America, and the West Indies.
Blooms: Not very often, but when they do you'll see a big spike with whitish flowers on it.
Light: Full sun, or partial shade.
Water: Rain is enough.
Where to find in P. Garden: In a row along the wall, as well as several dotted around on the back slope by the compost heap, and one in the large middle bed.
(UPDATE: they all rooted and are growing well!) They're very tough plants, so I expect they'll take up the challenge and I'll be hacking them back with a machete before you know it. John also gave us a full-on rooted Yucca tree (top) which is very impressive and gives the other Yuccas something to aspire to!
We also have several Yucca flaccida "Garland's Gold" which is a yellow and green variegated Yucca with floppy leaves, which has a compact form - it doesn't turn into a tree like many other types. Then we have a Yucca whipplei on the terraces. Yuccas are lovely, bright, tough plants - I'd love to get more species of Yucca for the garden, too. Any suggestions?