Divide irises when they are dormant in midsummer. After blooming in spring, plants slowly move into a dormant period that ...

Plant bare roots in the fall or the spring; bare-root plants may not flower robustly until their second year. Bearded irises have a moderate growth rate, growing 4 to 40 or more inches in one year ...

There are two dietes species that carry the common name butterfly iris. The rhizomatous plants in this genus, too, are known as fortnight lilies because their bloom crops come in two-week periods ...

Late May is the time to appreciate irises; the end of summer is the best time to buy and plant them. The American Iris Society has a list of the 100 most popular tall bearded irises, worth looking ...

When preparing a spot to plant Louisiana irises, incorporate a generous 3-inch layer of compost, rotted manure or peat moss and a general purpose fertilizer following label directions.

Do you have irises in your landscape? With their colors and gray-green foliage, they can certainly put on a colorful show. Skip to main content. You have permission to edit this ...

Q: We have had a patch of iris for about 10 years. You can imagine how thick that patch has become, since we have never thinned them out. I have read that they should be dug up and divided in July … ...

Care for irises, sago palms and the compost pile: Dan Gill gives readers advice ... Plants are dormant in July, August and September, but will begin to grow again in October.