How do I overwinter my bearded iris?
After the iris rhizomes have cured, coat them in powdered sulfur or other anti-fungal powder. This will help prevent rot from setting in on the rhizomes. The last step in storing iris rhizomes is to wrap each rhizome in a piece of newspaper and place in a box. Put the box in a cool, dry place.
Should you cut back bearded iris in the fall?
Iris plants are best cut back in the fall. Spent flower stalks can be removed in spring after the plants finish blooming, but the foliage should be left standing through summertime. In mid-autumn, cut the leaves back to about 3″ long above the soil line.
Can you replant a bearded iris?
The most important aspect of transplanting iris is timing. For bearded iris, the ideal time for digging and dividing is in late summer to early fall. Bearded iris are less susceptible to bacterial and fungal rots at this time because weather tends to be drier.
Can you overwinter irises in pots?
Bearded irises overwinter indoors just fine in pots. Use a very light potting medium (potting soil mixed with LOTS of perlite), water sparingly and allow the soil to dry out between waterings (overwatering will cause them to rot), and check daily for aphid infestations (irises are VERY prone to aphids indoors).
Can you leave iris bulbs in the ground?
The best time to dig up iris bulbs or rhizomes in the garden is between the last days of summer and early fall. Lift the clump of iris plants from the ground with a spade or fork. Try to lift the entire bulb to ensure the plant survives the move.
How fast do bearded iris multiply?
Your transplanted iris will likely show new growth within two or three weeks. The first sign is usually a single new-growth leaf appearing in the center of the rhizome. Water regularly until this happens, but, once new growth begins, reduce watering to no more than weekly.
When can bearded iris be divided?
Bearded iris can be divided any time after flowering; this is often done in July or August in the Midwest so the replanted portions will have plenty of time to develop new roots and become established before freezing weather arrives. Lift clumps carefully to avoid damaging the rhizomes.
What month do you cut back irises?
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.
Can you transplant Bearded Iris in the spring?
Tip. Do not transplant iris in the spring. Wait until the foliage has died back in the summer before attempting to dig up and move your iris bulbs.
How do you dig up and replant Bearded Iris?
Carefully dig up your iris clumps with a spade shovel and gently lift each clump from the soil. Shake off the soil and rinse each rhizome with water. Trim the existing foliage into a neat fan about a third of their overall height, then use a sharp knife to cut or separate the rhizomes.