If you love irises , add reblooming irises to your landscape for gorgeous belated summertime or other fall heyday .
Better Homes & Gardens
Reblooming irises blush at least twice a year , in the fountain and again in previous summer or early fall . Rebloomers are found in several iris species , includingbearded irisesand beardless sword lily ( Siberian , Japanese , and Louisiana iris ) .
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In warm climates with foresighted growing time of year , reblooming irises can have three or four reblooms . Just like other iris that flower only once , reblooming irises are perennial that flaunt angelical - scented fleurs - First State - lithium over a fan of leaves . While most iris cease blooming during summer , rebloomers flourish during the strong months .
Where to Plant Reblooming Iris
works reblooming iris in a blot withfull sunand previous afternoon shade . Make trusted they are n’t overshadow by other plants that prevent them from getting the light they need .
Reblooming flag expand when given its own spot , forth from other flowers . Some varieties wo n’t commence reblooming for a pair of days .
How and When to Plant Reblooming Iris
Plant reblooming iris rhizomes 1 to 2 feet asunder , with the tops disclose and the roots beneath the soil . Plant in late summer or former decline , when nighttime temperatures are no lower than 50ºF , to give the ascendant plenty of sentence to get prove before spring bloom .
Once they ’re established , reblooming iris will mature very tight .
Reblooming Iris Care Tips
Because they ’re doing more piece of work throughout the growing season , reblooming irises require more attention than single bloomers .
Light
Reblooming flag should be site where they get Lord’s Day most of the day , with some shade later in the good afternoon , specially in hot climates .
Soil and Water
Reblooming iris need fecund , more or less acidulent , well - drained filth . If the grime in your garden is heavy , add coarse Amandine Aurore Lucie Dupin or humus to help with drainage .
Water every other calendar week to keep the soil moist and keep the plants from move dormant . However , this much water supply can cause steady irises to moulder , so it ’s good to keep your rebloomers asunder from your standard iris diaphragm .
Temperature and Humidity
Reblooming irises are generally hardy in Zones 3 - 9 . However , the reliability of reblooming declines far northwards . Gardeners inZones 3 and 4may see little or no reblooming . In most reblooming types , the reblooming wheel is coiffe off by cooler weather , so if your temperatures are tropic year - round , you may also not see a second peak .
Fertilizer
Use alow - nitrogen plant food , such as 5 - 10 - 20 , watch over label directions . To prevent combustion , do n’t allow the plant food to touch the exposed rhizomes . prey the plants gently in springiness as emergence starts , and again in September .
Pruning
After the first efflorescence , sometime in previous May or June , crop flower stalk from plants but go out the leafage . reprise the mental process after the subsequent flowering , and if there ’s another one , after it as well . Once the leafage dies back , cut back 3 inch from the cornerstone before winter .
Potting and Repotting Reblooming Iris
In climate where the temperature drop below freezing , it is not advocate to grow irises in pots because the rhizomes are exposed to extreme insensate and freeze - and - thaw cycles during the wintertime , which affects base growth and may even kill the plant . In mood with soft winters , you’re able to implant reblooming iris varieties in pots .
select a container with large drain holes . Dwarf irises require a 6- to 8 - inch diameter corporation , while improbable sort need a 12 - column inch diameter mass . Add some crushed rock or Lucy Stone to the bottom of the pot for improved drain .
Pests and Problems
Like other irises , rebloomers are susceptible to iris borers andaphids . One of the most coarse diseases is bacterial leaf maculation , which can be prevented by ascertain good air circulation .
How to Propagate Reblooming Iris
Reblooming irises grow faster than regular irises , so you ’ll ask todivide them more often . To foreclose overcrowding , divide reblooming iris every two to three years , but take only the outside rhizomes of the plant ; will the healthy older portions of the flora inviolate . Replant the little rhizomes 12 to 18 inches aside .
Types of Reblooming Iris
Although commonly called rebloomers , there are several types within this category , accord to the Reblooming Iris Society :
Most rebloomers are whiskery iris , though some Siberian , Japanese , and other species offer this trait .
Below are some of the most authentic reblooming bearded iris . Note : the time of bloom refers to the first unfolding .
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‘Autumn Tryst’
This early to midseason bearded iris has majestic and white-hot flowers and mature 34 inches tall .
‘Bountiful Harvest’
This ahead of time - blossom barbate iris has ruffle up reddish blue and lily-white blossoms . It develop 33 inches tall .
‘Harvest of Memories’
Iris germanica’Harvest of Memories ' is a midseason foul-up with scandalmongering flowers . It grows 38 inch grandiloquent .
‘Immortality’
Iris germanica’Immortality ' is a midseason bloomer with white flowers . This bearded iris grow 30 inch tall .
‘Sugar Blues’
This barbate iris ( Iris germanica ' Sugar Blues ' ) raise 36 inches marvelous . It blossom mid- to former time of year with blue flowers .
Reblooming Iris Companion Plants
Allium
Hardy in zone 4 - 9 , the little oniony aroma thatalliumgives when crushed keeps beast forth . zone 4 - 10
Tulips
Generally early- to midspring bloomers , tulipsoffer many color and varieties to choose from . Zone 2 - 9
Peonies
A perennial that create big - blooming flowers , thepeonyis a nice counterpoint to marvelous , narrow-minded reblooming iris . Zones 3 - 8
Frequently Asked Questions
Only bet these flowers if there are mellow winds in your location . Otherwise they stand strong on their own .
Failure to bloom can have several reasons . The iris diaphragm may be too crowded , they ’re planted too deep , they ’re not getting enough sun , or the climate is too affectionate or too cold . Some motley also need a couple of years after planting before they start the blooming oscillation .
One of the more dependable rebloomers is the white ' Immortality ' . It first blooms in June and again in late summer .
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Credit:Better Homes & Gardens
Mark Kane.
Credit: Kritsada Panichgul
Bob Stefko.
