Art Aigner, a reader from Elma, asked, “How do I prevent my iris blooms from laying over?”
Mark Van Buren of Zehr’s on the Lake Farm Market and Nursery offered a couple solutions.
The problem may be that that the rhizome or root or “toe” of the plant isn’t deep enough. Van Buren said that 50 percent of the rhizome should be exposed and 50 percent should be under the soil.
He suggested staking the iris with small bamboo stakes for now and adding more soil. That should help the plant to establish itself.
If there are a lot of irises in one spot, the problem could be that they need to be divided, Van Buren said. You should do this at the end of July or beginning of August. Take three to five “toes” out together when you separate them.
Donna Brok, who writes the blog Garden Walk, Garden Talk, notes that her irises that are on the west side of her property lean over to reach for the sun. You can see her Obsidian stretching out and lying on top of her rudbekia in the photo at right.
If that seems to be your problem, move the plant to a sunnier spot.