Iris
Iris is a vast genera that offers a species for just about every situation in the garden. Their flowers are quite elegant, having inspired many artists to feature them in their masterpieces around the world and throughout time.
Plant care & info
Genus: Iris
Common name: Iris
Origin: Over 300 species are native to temperate areas of the northern hemisphere.
Conditions vary greatly among species. Generally, however, they thrive in full to part sun—although some species are more shade tolerant. All will thrive in well drained soil. Bog species—like I. cristata, I. pseudacorus, and I. sibirica—can grow in full sun and permanently damp soils.
Most prefer regular water during the growing season, and little to no water when dormant. There are also bulbous species, such as the Dutch Iris, which bloom in March.
Irises can be food for slugs and cutworms (as are most plants.) Non-bog species are prone to rot if they are perpetually soggy. Bearded irises may not bloom if the rhizomes are not on top of the soil or if they are over crowded. The most common disease tends to be leaf spot.
Siberian and Japanese species require little to no maintenance. Bearded Iris benefit from dead heading of individual flowers and a leaf trim in summer. Cut back and clean up old foliage in the fall to keep tidy and help prevent leaf spot.
Iris are a great cut flower. They’re also deer resistant and attract butterflies!
Divide bearded iris in late summer after flowering. Siberian and Japanese species can be divided in late summer and fall. Some species can grow from seeds planted in fall.
Irises are great plants for the beginning or experienced gardener.
Their pointed blades of foliage lend a strong vertical feel in the gardens, which can be a great structural and textural contrast with perennials and shrubs. They look great in the garden as a lone seasonal focal point or planted in swaths.
This page focuses on non-bulbous bearded, Japanese, and Siberian iris—plus a few other jewels in the genus.
