Hybridizing

How do Iris reproduce?

One way Iris reproduce is by growing side increases (usually 3-4) like eyes on a potato. These eyes grow into fully mature rhizomes in one year. This is known as asexual (or vegetative) reproduction.

How are new Iris plants made?

Another way Iris reproduce is by seed propagation. Anyone can hybridize Iris from seed. All that's needed is a little basic information on where the pollen is found and where to put it. Growing Iris from seed culture produces new varieties genetically.

How do you hybridize with pollen?

To produce a new hybrid, pick the pollen bearing anther from the center of the flower. Rub the pollen on the top of the stigma of another Iris flower. Your chances of a successful pollination will be better if you put pollen on all other stigmas. Label your pollinated flower by attaching a tag bearing the names of which Iris parents you used. If the pollination is successful, the ovary, which is just below the flower, will begin to grow after a week and develop into a seedpod.

How do you grow Iris from seed?

About two months after pollination a seed pod will turn brown and split open. Harvest the golden brown seed and allow them to dry out for a couple more months (Be sure to keep the record of the parents with the seed). In late October plant the seed about 3/4" deep and 1" apart in well drained soil. The planted seed should spend the winter outdoors. The following spring little Iris plants will grow from the seed you planted. Replant and space out the "baby" Iris when they become crowded. Grow to maturity and enjoy the blooms the next spring.