I system is kinda sad. I roundup my intended area, wait for everything to be dead..till it up, mix a little bone meal into each "hole" as I plant my iris and hope for the best.
This year I have actually killed out my area BEFORE my orders start coming in so I am way ahead of the game for me. Sometimes I have had rhizomes sit in the house for 2 weeks waiting for me to finish up my beds...they have been fine but it is not a highly recommended method!
