I've got a clump of irises that keeps getting bigger and bigger. I want to split it and give a clump or two to a friend, and plant a clump or two in another part of the garden (or maybe in the backyard).
Any idea when the best time to split irises is?? I'm thinking autumn, but does that give the new planting enough time to root properly before winter?? Also, do I just cut through the plant down to the roots, or do I have to dig up the complete bulb??