added by sbert
(3 months ago)
Add to ideabook by The New York Botanical Garden by The New York Botanical Garden
Bulbous irises. These include the Dutch and Spanish irises. The Dutch irises are fairly short, with 1 1/2- to 2-foot stems. Flowers come in a range of colors. They start blooming in March in warmer climates but not until May or even June in colder areas. Spanish irises are similar to Dutch irises but tend to be smaller and bloom about two weeks later. Both want full sun and prefer a location where they won’t receive summer water. Plant in October or November, 4 inches deep and 3 to 4 inches apart. Water from the time leaves appear until about four weeks after the flowers have finished blooming.
Reticulata irises are the shortest irises, usually not reaching more than 8 inches high, with small blossoms. The leaves may not appear until after the flower blooms. These irises are ideal for edgings, rock gardens and containers. Flowers generally are violet, blue-violet or white, though there is a yellow species. Set them out in fall, in full sun, 3 to 4 inches deep and 3 to 4 inches apart. Water regularly from fall through spring but keep the soil dry in the summer.