American Iris Society Wiki (2024)

FAQs

What is sdb in irises? ›

Bearded Iris are divided into 6 groups defined by their height and bloom period: Miniature Dwarf Bearded (MDB), Standard Dwarf Bearded (SDB), Intermediate Bearded (IB), Miniature Tall Bearded (MTB), Border Bearded (BB), Tall Bearded (TB).

Intermediate Bearded (IB)

Intermediates grow from 16" to 27 " and have their peak bloom after the SDB irises but before the TB's. These are some of the most useful plants we have for the garden.

'Why Be Normal' is a true flat iris, one having no standards and six falls with beards rather than one that merely has weak standards. Mid caramel falls have mid brown hafts and center stripes extending from mid mustard gold beards.

If you want more irises, leave the seed pods. You can cut them off after they dry and store them to plant next year. If you don't want more of the pod-generating iris, I would cut them off right after they bloom, that way the plant is not spending energy making the seeds.

The leaves become soft, and the rhizome root grows mushy. Iris root rot is a caused by Erwinia carotovora, a bacterial phytopathogen. It usually gets inside the rhizome through an opening created by some kind of injury.

Individualized education for children and youth with exceptional learning needs, provided at no cost to the student's parents, that meet the unique academic and/or functional needs of the student.

Introduction. Tuberculosis-immune reconstitution inflammatory syndrome (TB-IRIS) is an abnormal, excessive immune response against alive or dead Mycobacteria tuberculosis that may occur in either HIV-infected or, more rarely, uninfected patients.

Unlike other types of iris that grow from thickened roots called rhizomes, Dutch iris grow from teardrop-shaped bulbs that are planted in fall.

Pinguecula is a raised yellowish or white growth. It stays on the conjunctiva and doesn't overlap with the cornea. It usually doesn't cause symptoms or needs to be removed. Pterygium is a fleshy growth that has many blood vessels in it.

Expert Response. Yellowing could be from over or underwatering or perhaps a nutrient deficiency or pests. If you think it might be from dog urine, you could saturate the area to try to push that lower in the soil.

What does your iris say about your health? ›

A reading in the practice of iridology is said to help a practitioner identify the following: Inflammation in the body. Vitamin deficiencies. Stress, such as how much stress a person tends to hold and where they hold it.

The American Iris Society suggests using a spoon to remove all infected tissue. Then, allow the rhizome to dry in the sun. Finally, use a chlorine based cleanser to powder the wound. Dousing in place with Dial antibacterial soap (with triclosan) can be substituted for the chlorine based cleanser.

Using natural enemies

Beneficial nematodes (roundworms) are a natural option to help control some borers. They are microscopic worms that look for and kill the caterpillars by introducing a bacteria.

If you decide to use an insecticide for control, select a product that contains azadirachtin, pyrethrins, permethrin, or spinosad. Insecticides must be applied before iris borer larvae tunnel deep into the plant.

Brushfield spots are small, white or greyish/brown spots on the periphery of the iris in the human eye due to aggregation of connective tissue, a normal constituent of the iris stroma. The spots are named after the physician Thomas Brushfield, who first described them in his 1924 M.D. thesis.