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Soak Siberian iris rhizomes in water overnight before planting, then set them 1 inch deep (2 inches, if the soil is sandy), 2 feet apart. Over a period of years, they will form clumps; divide when blooms get smaller and vigor declines. Do not mulch around the rhizome, as this may encourage rot. Water thoroughly.
- How to Divide Bearded Irises—With Pictures
This is hot, heavy work involving a lot of digging, so I...
- Growing Japanese Iris
Japanese iris are heavy feeders. Fertilize them with a...
- How to Divide Bearded Irises—With Pictures
- Where to Plant Iris
- How and When to Plant Iris
- Iris Care Tips
- Pests and Problems
- How to Propagate Iris
- Types of Iris
- Iris Companion Plants
For the best bloom, plant iris in a sunny location. If your climate is on the hot side, some shade is acceptable. Almost all irises need well-drained soil but there are some species that prefer more moisture than others. The ideal soil for irises is slightly acidic but irises are quite adaptable pH-wise. There are lots of possibilities for planting...
Iris should be planted early enough in the late summer or early fall so that their roots are well established before the winter cold sets in. In cool climates, this can be as early as mid-July, whereas in southern locations planting in the early fall is fine. Space several plants 1`2 to 24 inches apart, depending on variety—irises have a tendency t...
Light
When it comes to sunlight, all irises need six to eight hours of full sunfor the best blossoms and foliage growth. In too much shade, they may stretch for the sun and become leggy and prone to flopping over. Also, the plants will be less likely to bloom.
Soil and Water
Bearded and bulb-type irises need well-drained soilto thrive because they will rot easily in soggy conditions. Many of the iris species are native to rocky mountainsides where there is sharp drainage. If you are looking for a species to grow in moist soil, look for a Louisiana iris, Japanese iris, or a yellow flag iris. Because there are such differences in the growing conditions of irises, make sure to do a little research before planting so you can provide your particular iris with what it...
Temperature and Humidity
Irises vary in their cold-hardiness. Siberian irises are especially hardy and don’t like extremely hot summers while others, such as Bamboo iris (Iris confusa) can even be grown in southern climates up to zone 11. Irises are relatively tolerant of humidity.
Irises are fairly pest-free, but iris borers are their one nemesis. This bug does most of its damage around blossom time, often between mid-April and mid-June. They chew their way into the leaves and then burrow down into the rhizome, leaving behind a trail of frass, a powdery brown residue. Once at their destination, the borers can eat several rhi...
Bearded irises and other rhizomatous types will eventually need to be divided every two to five years, which is also the way to propagate them. If it has been quite some time since their last division and your irises seem to be flowering less and less, chances are it's time for them to be divided. The best time to divide and replantmost irises is l...
'Bennerup Blue' Siberian Iris
Iris sibirica'Bennerup Blue' produces cobalt-blue flowers with small white blotches. It grows 2 feet tall. Zones 3-9
'Electric Rays' Iris
Iris ensata'Electric Rays' is a Japanese iris with large double violet flowers streaked with white. This award-winning variety grows 3 feet tall. Zones 5-9
'Caesar's Brother' Siberian iris
This variety of Iris sibiricais a classic Siberian iris with stunning deep purple blooms. Zones 3-8
Thrift
If you have a hot, dry spot with excellent drainage, you must give thrift a try. A small, tidy plant, it covers itself with adorable bobbing pink flowers. It's a charming groundcover, edging plant, or rock garden feature. When planted in large groups, it forms a mat of attractive grassy foliage and colorful marble-size balls of flowers. Also called sea pink, this tough plant tolerates wind, sea spray, and is drought-tolerant. They do need well-drained soil to prevent root rot.
Primrose
Take a walk down the primrose path and you'll never look back! Primroses are a classic cottage flowerand are popular with collectors. They covet the hundreds of different primroses available, especially some of the tiny rare alpine types. Many are staples of cottage gardens and rock gardens, while others provide spring color to damp places, rain gardens, and bog gardens. Their basal rosettes of oval leaves are often puckered or are very smooth. The colorful flowers may be borne singly or rise...
Peony
Perhaps the best-loved perennials, herbaceous peonies belong in almost every garden. Their sumptuous flowers—single, semidouble, anemone centered or Japanese, and fully double—in glorious shades of pinks and reds as well as white and yellow announce that spring has truly arrived. The handsome fingered foliage is usually dark green and remains good-looking all season long. Provide deep rich soil with plenty of humus to avoid dryness, and don't plant the crowns more than 2 inches beneath the su...
- Nadia Hassani
The Iris Project is a collaborative open-source project created by a team of passionate developers seeking to make the Minecraft shaders experience the best that it can be. Iris is developed by the community, for the community.
Illustration of an iris flower with highlighted parts of the flower. Irises are perennial plants, growing from creeping rhizomes (rhizomatous irises) or, in drier climates, from bulbs (bulbous irises). They have long, erect flowering stems which may be simple or branched, solid or hollow, and flattened or have a circular cross-section.
Sep 12, 2018 · Irises are easy-to-grow perennials with flowers in nearly every color of the rainbow. Discover the most popular irises including tall bearded irises, Siberian irises, Japanese irises, Dutch irises and more. Learn all about planting and caring for iris flowers, plus find 11 elegant irises for your own garden.
Jun 14, 2021 · Iris bulbs, which actually are called rhizomes, look like a long, skinny sweet potato. “Rhizomes technically are elongated stems,” says White. “The leaves and flowers come off this stem.” Work some compost into the soil in your planting area, then space out rhizomes about 1 to 2 feet apart for bearded and 2 to 3 feet apart for beardless.
How to Plant Irises. Here are the steps to plant irises: Prepare the soil: Loosen the soil to a depth of 12-15 inches (30-37 cm) and mix in compost or well-rotted manure. Plant the rhizomes: Dig a shallow hole 10-12 inches (25-30 cm) apart and 4 inches (10 cm) deep to cover the rhizome with 1-inch (2.5 cm) of soil.
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