All categories of Bearded Iris from the Miniature Dwarf Bearded to the Tall Bearded have varieties that rebloom, usually weeks after initial bloom. Subsequent blooms are not as reliable as the initial bloom, and depend greatly upon the quality of the soil, climate, and geographic location.
Remontancy is not guaranteed. Check our online catalog for several varieties of rebloomers. For longer lasting flowers cut your Iris early in the day with the buds just opening. Place them in a bucket of tepid water and re-cut the stem end underwater at an angle one inch up.
Display your Iris in a cool niche away from direct sun and drafts. Pinch off and remo ve wilted flowers immediately. This reduces the stress that the plant goes through as it concentrates on regrowing new roots instead of trying to maintain long leaves. Replant divisions, setting the rhizome higher in the planting hole than the fine roots, which should be fanned out. A bit of the top surface of the rhizome should be just visible at the soil surface.
Space the plants 12 to 18 inches apart closer for dwarf varieties, farther apart for the largest. For the best display, plant the rhizomes so the fan of leaves face the same direction.
Water well when planting bearded iris rhizomes, but don't continue to water unless the weather becomes dry. Iris flowers have three primary structures, and usually, variety names are inspired by unique characteristics of one of the parts.
For example, the 'Fringe of Gold' flower has drooping "falls" that are white-edged or picoteed in yellow. The upright "standards" are solid yellow. And the tiny fuzzy "beard" in the middle is white and yellow. If you've only got a description, you can use the names of these structures to envision how a specific variety might look.
As a longtime lover of bearded iris, Winton has many favorite varieties, including 'Fringe of Gold'. These varieties are also some of her favorites. This variety is a dwarf tall bearded iris with yellow blooms.
The petals have a white and deep purple-veined pattern that makes for a bold contrast on each flower. White petals fade into light purple on the tips on this softer bearded iris variety. This mid-height selection also looks beautiful indoors in a vase where you can get a closer look at its multicolor petals.
It's a tall variety, and it looks especially stunning planted alongside a few paler purple irises. If you love purple , 'Ozark Dream' is the bearded iris for you. The top petals of the bloom are a light purple, while the falls are dark violet.
This tall bearded iris variety has a stark contrast between the top petals which are white and the falls in a brick red hue. The red falls petals have a hint of magenta near the center, and the inside of the white petals has a light pink hue.
The scarlet blooms of this bearded iris variety make it stand out in the garden. The petals fade into orange and gold tones toward the center of the bloom. The outer edges of the petals become such a dark red that they almost look chocolate brown in places. Save Pin FB More. Credit: Robert Cardillo.
Plant them in a sunny spot in late summer. The plants need well-drained soil and at least six hours of sunlight per day. A full day of sun is even better to keep the rhizomes dry. The rhizomes are the fleshy rootlike structures at the base of the plant. Prepare their beds.
Use a low-nitrogen fertilizer and apply it twice a year: In early spring and just after bloom when the rhizomes are forming the next year's flowers. Only water only if it's extremely dry or after transplanting. Give them room to breathe. For some species of iris, you should plant the rhizome at soil level; plant other iris rhizomes below soil level. Prepare for a successful iris blooming season by locating the bed in an area predicted by the type of iris you are planting.
If you plant bearded iris, remember that they require 6 to 8 hours of direct sun daily and a loamy soil composed of sand, silt and clay.
Be sure the soil drains well, and if not, supplement the soil with organic matter to improve its drainage. Regular garden soil is preferable for most iris species, with the exception of the Japanese iris , which requires continuous moisture and a rich but slightly alkaline soil.
If you purchase a beardless iris, its rhizome is packed in a moist plastic bag, and you should plant it immediately. Do not let the rhizome dry out. Be patient when planning your iris garden. Late summer to early fall, when nighttime temperatures hover at around 40 to 50 degrees Fahrenheit, is considered the optimal planting time to achieve flowering in the following spring and summer. The rhizomes need time to adjust to their new environment and to settle in before the winter chill arrives.
Aerate the soil with a tiller to a depth of 12 to 15 inches and add a layer of compost to about 2 to 4 inches. Place the rhizome horizontally on the ridge, spread the roots down the sides, then cover the roots and rhizome bottom with soil.
The exception to this plan is if the bed is in a hot, dry climate. If those are your conditions, plant the rhizome below the soil level to keep it moist. Plant the bulbs of the Dutch iris with the pointed side up at 5 inches below the soil line. Fall and spring are ideal planting seasons. Dutch iris looks best when featured in groups of 10 bulbs in a square foot area. Once your rhizomes or bulbs are in the ground, water immediately. Avoid rhizome rot by watering only when needed and using an all-purpose fertilizer sparingly.
Be sure the rhizome is exposed. The tall bearded iris may require a stake for support.
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