![]() German Iris are known for being drought tolerant. Some Iris, like Japanese, Louisiana and Siberian Iris, are better suited for moister conditions. While irises can grow in partial shade, they may not bloom as profusely. When determining where to plant iris, keep in mind that all iris like well-drained soil rich in organic matter and full sun. This makes planting irises in the spring a good option. These irises come from a grower in the Netherlands where the growing season is slightly different. van Bourgondien offers some rhizomatous iris for spring planting. Rhizomatous iris, like German Iris, are usually planted in late summer and fall. They will then bloom the following spring. Bulbous iris, such as Dutch Iris and Iris reticulata, are planted in the fall, after the ground has cooled but several weeks before it freezes. Zones 3-9.īecause some Iris grow from rhizomes while others grow from bulbs, pay attention to your iris type when determining when to plant iris bulbs. A rhizomatous variety, Siberian Iris can be planted in the spring or late summer. Growing up to 30" tall with straplike foliage, these irises can be grown near water features. Siberian: Thriving in colder and temperate regions, these beardless iris bloom in early summer-and each bloom is a work of art.tall and can be planted in the spring or late summer. They're an excellent choice for water gardens or along ponds and streams. Their gorgeous flowers add color when they burst into bloom in early to midsummer. Louisiana: A rhizomatous, beardless variety, Louisiana Iris thrives in moist, warm regions-and are also hardy enough to grow in cooler zones. ![]() These rhizomatous irises can be planted in the spring or fall. They bloom in the early summer and often have flowers up to 6" across. tall, Japanese Iris grow best in moist soils. Japanese: These beardless iris are often seen enhancing water features.Available in a range of colors, these rhizomatous irises can be planted in the spring or the fall. Their flowers feature prominent beards, or hairs in the center of each fall. tall with swordlike foliage, they bloom in mid to late spring. German: Sometimes called Bearded Iris, German Iris are probably the most recognizable iris type.When shopping for dwarf irises, note their botanical name, as some German Iris are available in dwarf sizes. They can also be forced for indoor blooming. These charming bulbous irises are a great way to start iris season and are usually planted in the fall. Dwarf: Also called Iris reticulata, most Dwarf Iris bloom in late winter to early spring and grow less than 12" tall.These bulbous irises are planted in the fall. Growing 20-24" tall, Dutch Iris bloom in late spring to early summer. Dutch: A favorite for cut-flower displays, Dutch Iris have delicate-looking flowers and straplike foliage.Just follow these tips on how to grow iris and how to care for iris. Both types are easy to add to your garden. Bulbous irises, like Dutch Iris, are grown from bulbs, while rhizomatous iris, like German Iris, are grown from rhizomes, or horizontal, root-like structures. By growing different types, you can enjoy showy iris flowers from early spring through summertime. Irises are available in an array of colors, bloom times and sizes. While these classic perennials are known for their elegant flowers, they're easy to grow and low maintenance. Named after the goddess of the rainbow, irises add vibrant color to the spring and summer garden and are simply stunning in cut-flower displays. Gorgeous as cut flowers and very versatile Multicolor, white, yellow, peach, blue, purple, red Iris germanica, Iris ensata, Iris louisiana, Iris sibirica
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