Species Iris, Garden Bearded Iris

We have had i. suaveolens for some years. It grows on a slope with good drainage, in front of other irises. It gets good sun. It flower...Read Mores well, with good increase. Being in the South Island of New Zealand, winters are mild to cold, with frosts around -3 to -5 C and up to -8C. Summer temperatures peak at about 25 C. The soil has 6.9pH. I feed the plant a little blood and bone and a little slow release general fertiliser (Nitrophoska). I spray all our irises regularly with a trichoderma mix to avoid bacterial disease and rot, and an insecticide, although I have never seen insects or pests on this plant.

I am not sure if it is due to the zone I live in, but this iris blooms in the fall where I am. (It's zone 8.) Last year it did so, and I ...Read Morejust thought it was a fluke. This year, it did it again. I love blooms in November so this is NOT a complaint. The color is an amazing yellow-green. I only wish it grew faster. Doesn't seem to spread the way others often do. I would love more blooms.