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. Check the water level every day and replenish as needed.
Tip: Cut Iris tend to drip a sap-like substance. Hardy from Zones 5 to 8, 'Golden Harvest' needs full sun and well-draining soil. If yellow's not your color, choose a different cultivar. Modern Xiphium cultivars come in white, blue, and purple but otherwise look the same. Excellent in borders and containers, they also make great cut flowers. It blooms from May to June, producing intensely white standards overlaid with yellow, and yellow-edged white falls.
Grow the plant in full sun and well-draining, medium-moist, humus-rich soil. This tall bearded remontant iris is hardy from Zones 3 to 10 and typically grows three feet tall. The showy flowers feature golden-tan standards and falls, with cinnamon markings on the falls and white borders circling the beards.
A good plant for sunny beds and borders, it grows best in full sun and organic, medium-wet, well-draining soil. Flowers appear from late spring to early summer sporting white standards and brilliant yellow falls. The plant's thin, arching leaves add an ornamental grass—like texture to mixed borders. A tall bearded reblooming iris, this cultivar is hardy in Zones 3 to 10 and grows up to three feet tall. Its heavily ruffled standards and falls are brilliant white with a very slight tinge of violet.
The falls have greenish-white centers, and the beards are pale lavender. Petersburg' makes a bright accent in beds and borders of contrasting colors. It's best grown in full sun and fairly organic, well-draining, medium-moist soil. For membership information, call The AIS's website www. These societies can recommend local growers, but if you are unable to get your irises locally, following are a few mail-order sources.
Ensata Gardens E. Michigan Avenue Galesburg, MI www. Barbara Perry Lawton has served as editor and manager of publications for the Missouri Botanical Garden, president of the Garden Writers Association of America, and weekly garden columnist for the St. Louis Post-Dispatch. I discovered one of my bearded iris has bloomed today. A good rhizome will be about as thick as your thumb, have healthy roots, and have one or two leaf fans.
Large, old rhizomes that have no leaf fans can be tossed out. Wash the soil off the rhizomes so you can inspect each one for iris borer a plump, white worm. If you find a borer, destroy it. Some gardeners like to wash their iris rhizomes in a percent bleach solution to protect against disease , but that won't help plants that are already rotting.
Make sure to discard any soft, smelly rhizomes you find, as well as any that feel lightweight or hollow, or that look dead, like the rhizome shown above.
Clip off the leaf blades so that they're 4 to 6 inches long. 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.
Dwarf varieties tend to bloom earlier in spring, with intermediate sizes blooming later spring, and taller bearded varieties blooming late spring and summer. Reblooming varieties will produce flowers once in summer and again in fall. There is an extremely wide variety of colors, ranging from white to almost black; although most common in shades of lavender, purple, white and yellow. Iris are known to be toxic to pets, with the bulb being the most toxic part.
The bulbous irises bloom in late spring, while the rhizomatous irises bloom during summer. This group includes the Dutch hybrids and the smaller reticulated or dwarf irises. They all shed their leaves after the blooming season and go into a dormant phase over summer. Reticulated irises are well-suited for growing in groups, but should be divided every two to three years to prevent overcrowding.
They are also good for rock gardens and forcing in pots. The best time to plant iris rhizomes or bulbs is late summer to early autumn to allow them plenty of time to establish roots before the growing season ends. In hotter climates, they can be planted in September or October. Raised beds are ideal for growing irises, as they provide the good drainage needed. Prepare the planting beds up to two weeks ahead by loosening soil to a depth of inches to establish good drainage.
At this time, organic matter can also be mixed in. Iris rhizomes should be planted so that they are slightly visible on the soil surface, or thinly covered in warmer climates.
They can be top dressed with a low-nitrogen fertilizer avoid high-nitrogen as it can cause rot. Make 2 rows in the soil with a small ridge in between. Place the rhizome on the ridge and spread the roots to either side. Most irises prefer average to fertile, neutral to slightly acidic, well-drained soil. However, Japanese irises prefer lime-free soil. For more on planting bulbs see Bulbs Planting and Storing Bulbs. Cut back the flowering stalks after flowering, but leave the foliage intact so it can continue to gather and store nutrients and energy to be stored for the following season.
0コメント