Can I plant bearded iris in the spring?

Asked By: Heber Forrest | Last Updated: 18th March, 2020
Category: home and garden landscaping
4.5/5 (69 Views . 31 Votes)
Late Summer is the perfect time to plant Bearded Iris rhizomes. They get a chance to establish their roots in your garden before the winter season and will produce significant growth in the spring, often blooming in the first season. The more time you can give them before the end of your growing season, the better.

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Considering this, can I plant iris rhizomes in the spring?

Fall planting before the first frost allows rhizomes to become established before the winter months. Iris bulbs grown indoors may be planted in the spring or summer.

Beside above, what can I plant with bearded iris? Bearded Iris Companion Plants Companion plants for tall, dwarf and other bearded iris are Columbine, sweet rocket, pyrethrum, blue salvia, coralbells and Narcissus. Lilies, hemerocallis hybrids, penstemons, phlox and chrysanthemums are also used in combination with irises.

Regarding this, can you transplant irises in the spring?

Don't Transplant in Spring Because you need to cut away the foliage when transplanting rhizomes, the spring is a bad time to transplant iris. Irises flower in spring, sometime between April and June depending on the cultivar, and their foliage does not begin to die back until July.

How long can you keep iris bulbs before planting?

one to two weeks

39 Related Question Answers Found

Should Iris be deadheaded?

Deadheading, or removing the old flowers, keeps the plants attractive and allows the leaves to collect energy for healthy root formation instead of setting seeds. Some irises may bloom twice a year if you deadhead properly. Break off the individual flowers on each flowering stem after they finish blooming.

How do I get my iris to bloom again?

Remove rhizomes from the soil carefully with a garden fork and divide them with a sharp, clean knife so each new section has one to three leaf fans and healthy roots. Replant immediately. Most irises prefer well-draining soil in a sunny location. Your irises should produce more blooms the next year.

Where do Irises grow best?

Iris need at least a half day of sun. In extremely hot climates, some shade is beneficial, but in most climates Iris do best with at least 6 hours a day of full sun. Iris should be planted so the tops of the rhizomes are exposed and the roots are spread out facing downward in the soil.

Do deer eat irises?

Though they are not toxic, deer, rabbits, gophers etc will avoid feeding on irises. Bearded iris are extremely drought tolerant and ever green. Japanese iris will grow in semi-bog conditions and are also evergreen.

What do you do with irises after they've bloomed?


After blooming is finished, cut flower stems down at their base. But do NOT trim iris leaves after they have finished blooming. Leaves carry on photosynthesis for next year's growth. Cut off brown tips—and cut the flowering stalk down to the rhizome to discourage rot.

Why are my iris not blooming?

Poor rhizomes or bulbs are often the cause of no flowers. Also, the plant needs well-drained soil in full sun for flowers to be produced. Irises in shady locations may fail to form blooms. Depth of planting can also cause iris plants not flowering.

How often do you water iris bulbs?

Once established you should reduce the watering until the winter or fall rains set in. During dry spells (over three or four weeks long) you will need to give them a good deep watering every 3 to 4 weeks depending on the temperature. The second time the Iris needs water is in the early spring.

How do you propagate irises?

  1. Use a fork to dig up a congested clump of irises.
  2. Pull the congested rhizomes apart by hand, or cut them with a knife.
  3. Newly-planted rhizomes are vulnerable to wind rock, so it's a good idea to reduce the leaves by half.
  4. Replant healthy rhizomes about 12cm apart with the leaves facing towards the sun.

What is the best time to transplant irises?

The best time to plant and transplant rhizomatous iris is late July through September. Iris loves the heat and drier weather of summer and the summer dividing will reduce the incidence of bacterial soft rot. Most rhizomatous iris should be divided every three to five years.

What is the best time to divide irises?


Mid- to late-summer is a good time to divide bearded irises. You want to make sure that the roots have ample time to grow before winter. You can usually tell that your irises are ready to be divided when a clump looks overgrown, with rhizomes starting to grow into each other and popping up from the soil.

How do you divide and replant bearded iris?

Dividing Bearded Iris
  1. Iris are beautiful when in bloom, and need to be divided regularly to remain healthy and bloom well.
  2. Lift clumps carefully to avoid damaging the rhizomes.
  3. Separate lifted rhizomes by pulling them apart.
  4. Trim leaves to reduce transpiration in the replanted sections.
  5. Use a clean knife or shears to cut the rhizomes apart.

Where does the iris flower grow?

Unlike many other perennials, Irises are happy to bloom lavishly over a very wide area of North America. They are hardy into Canada, and are equally beautiful in gardens in places like Dallas, Texas, and even further south. They are famously easy to grow, and are some of the most persistent perennials of all.

How do you dig and store iris bulbs?

Store iris rhizomes in a cool, dark, and dry place, such as the refrigerator, if you acquired them too close to winter for planting. Dust the rhizomes with sulfur powder, and then place them in plastic bags with several holes cut into the bags. Position the bags in the refrigerator far from apples and other fruits.

How tall do Irises grow?

siberica): Siberian iris plants grow to a height of 2 to 4 feet tall and are hardy in zones 3 to 9. They feature mostly blue, white and violet flowers and have tall, grass-like foliage. Siberian irises grow well in cool, wet conditions and, though they thrive in full sun, they can also tolerate some shade.

Will iris bloom after transplanting?


Transplanting: Irises can take several seasons to re-establish. New iris divisions may not be mature or large enough to bloom. Planting depth: The rhizomes should be planted so that the top surface is at or slightly below the soil. Irises planted too deeply will produce leaves but no flowers.

Are irises poisonous?

Irises contain the potentially toxic compounds irisin, iridin, or irisine. Symptoms of Poisoning: The gastrointestinal tract may become affected by the glycoside iridin, causing nausea, vomiting, abdominal pain, diarrhoea, and fever. Also Iris can cause skin irritation or dermatitis.

What is the best fertilizer for bearded iris?

Feed your bearded irises a 5-10-10 or 6-10-6 fertilizer in early spring when new growth emerges. Spread the fertilizer evenly over the planting area. Water it in thoroughly to moisten the soil surface but not enough to soak the area to the point of sogginess. Avoid getting fertilizer on the foliage of these plants.