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The fall season is when you replant them. I don't do anything special - just cut the tops down to four or five inches.
Many iris do have rhizomes. But some do have bulbs.
Iris do not need covering in winter.
Irises have either bulbs or rhizomes.
Yes, but in the veggie drawer.
Iris do not have bulbs- they have a rhizome, a specialized root, and do not grow in small pots. Even one root in a 6 inch pot would not work.
Most irises have rhizomes but some have bulbs.
Iris bulbs should typically be planted one and a half feet apart but planting them in groups of three will yield a beautiful arrangement. So yes, you can plant them in small groups.
You cannot grow Irises in an Aerogarden because they are bulbs or rhizome based, not seed.
Most gardeners plant in the spring. However bulbs and iris are best planted in fall.
Irises are very colorful. They are a great addition to the spring garden coming after the spring bulbs.
It depends upon the particular iris [Irisspp] as to whether the plant will be affected by broadleaved or narrow leaved herbicide applications. Generally, those iris plants such as the amur iris [Iris maackii], Douglas iris [Iris douglasiana], and Virginia iris [Iris virginica] that are water feature and water body lovers tend to be broadleaved. Additionally, the bulbous iris that's grown from bulbs has wider, cylindrical leaves at their bases whereas rhizomatous iris that spreads by underground rhizomes has narrower, sword shaped leaves. Examples of popular narrow leaved iris plants include Algerian iris [Iris unguicularis varangustifolia], Pacific Coast iris [Iris tenax], and Siberian iris [Iris siberica ].