RE: Vic -- Iris virginica --

---

Patrick,

According to my records, the I. virginica in the photo were transplanted into no-drainage tubs in April of 2006.   However, I have other I. virginica in my garden growing in no-drainage tubs for approximately twice as long.  I usually fertilize my irises once a year; occasionally twice a year, except I. tridentata which receives no fertilizer. And, I have missed fertilizing during a year.  I reside in a high-rainfall area and, I assume, that some flushing out of the tubs occurs during high -rainfall periods. We also have long dry spells, like the one we are now just leaving.  I have not observed any problems with salt buildups. The only problem I observe is that over time, very occasionally, a problem with overcrowding might develop. I also grow lots of Hymenocallis, Crinums, and other plants in no-drainage tubs.

Vic