Gardening Questions And Answers
It usually takes several weeks for iris leaves to completely die back. By early fall, the leaves are usually ready to be cut back, according to the Utah State University Cooperative Extension. Leaves should be cut back to about 6 to 8 inches above the ground. Then, wait until after the first hard frost.
The drawback to using white vinegar on your irises is that the acid does not discriminate between weeds and flowers, so you can unintentionally injure the blooms with a rapid acidic burn. At the strengths needed to have any effect on larger or older weeds, the acid can burn human skin as well, causing safety […]
The leaves wilt, turn yellow, shrivel and die, starting about the time iris are in bloom. The leaves may collapse suddenly or gradually die back from the tips. When underground parts are dug up, the rhizome and leaf bases may be slimy and foul-smelling (soft rot) or shriveled, dry and rotted (dry rot) .
Irises are one of the earliest blooming and easiest perennial flowers to grow. Most of the more than 300 species worldwide are hardy throughout the U.S. and are widely adapted to various soil and sun conditions. By combining different types of irises, you can have them in bloom from early spring right into the summer.
No matter which varieties you choose to grow, there are a few things you can do to help bearded irises thrive in your garden. Follow these tips for the healthiest plants and best blooms: Plant them in a sunny spot in late summer. The plants need well-drained soil and at least six hours of sunlight […]
Dig a hole where the rhizome will settle into the ground just below the ground level. If planting several iris near each other, point the rhizomes away from each other and space them 18 inches (46 cm.) apart. Spread the roots out around the rhizome and then cover the roots and the rhizome with dirt.