Iris Cultivation

Question

I know how to plant irises but do not know what kind of soil is best. Do they need any manure or compost, for example?

Answer 1

Rich soil that has been amended with compost is very good for irises. They like light, loose soils that are well draining but loamy. pH of 6-7 is best. Manure tends to add too much nitrogen to the soil, which results in alot of leaves and few flowers. You can use a little, but not much.