Hi Nick You've started an interesting thread! I live on the opposite coast from you, but still zone 7. I've found that the foliage of the Zephyranthes I grow suffer too much outside, even in a sheltered area. I grow them in what is a cross between a window box and a cold frame (I took out a window, and glassed in an area against the house about 20 dm by 7 dm with a sloping glass top that averages about 5 dm. in height.) The Z. grandiflora are in bloom now (my first, from seed), and the Z. macrosiphon has just finished. Dave Brastow, Tumwater, Washington USA