Irises changing colour

I live in downtown Toronto (Cabbagetown) and I have many irises in my backyard which gets full sun all day. All of my irises come up purple and yet I only planted white, pink, and black. One year I planted…

Planting Irises

I have irises in my garden that are overgrown and surrounded with grass. Is it too late now to pull them up and replant them? If so, what is the best way to deal with them? Thank you.…