Irises: Watering Bearded Iris, 0 by Caliche

Caliche wrote:
Since we live on a hill, I grow my Irises & Daylilies in raised 8x8 and 8x4 beds. Our soil is caliche, and leaks like a sieve, so I need to water fairly often. I flood the beds briefly about once a week. I can't let the water run for long, as the nutrients all wash thru.
I have had these beds for about 6 years and only had soft rot once, when we got torrential rains for days, and then it turned off hot and cooked them.
I live in central Texas, and it gets very hot here...especially this year.