Blue Iris Iris korolkowii

☠ Toxic to humans
🐾 Toxic to pets
🌸 Blooming
🍪 Not edible
‍🌱 Hard-care
Korolkov iris


The plant commonly known as Iris korolkowii is distinguished by its striking flowers, which exhibit an array of colors typically in shades of blue, violet, or yellow. Often, these blooms will feature a unique blend of these colors, adorned with delicate veining or dappled patterns that contribute to their ornamental appeal. Each flower is comprised of three upright petals known as standards, which can be wavy or slightly ruffled, and three falling petals referred to as falls, which often display a contrasting color or pattern. The falls may also exhibit a plush area of beard-like hairs near their base, adding texture and visual interest. The foliage of Iris korolkowii forms an attractive clump of slender, sword-shaped leaves that emerge from a rhizomatous root system. These leaves are typically bright green, some displaying a glaucous hue which gives them a slightly bluish tinge. The combination of distinctive blooms and elegant foliage makes Iris korolkowii a captivating addition to gardens, where it adds a splash of color and vertical interest.

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Bluebird, Juno Iris

    • Common names

      Juno korolkowii, Xiphion korolkowii, Iris alberti Regel.

  • skullToxicity

    • To humans

      Iris korolkowii, commonly known as Juno irises, is not typically considered toxic to humans. However, as with many plants, it can potentially cause irritation or an allergic reaction if ingested or handled. It's always advisable to exercise caution and keep plants away from children who might accidentally ingest plant parts.

    • To pets

      Juno irises are also not commonly known to be toxic to pets, but ingestion can result in mild gastrointestinal upset, as with many plants that are not part of an animal's natural diet. It's best to prevent pets from chewing on or ingesting this plant to avoid any potential discomfort or allergic reactions.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      2 feet (0.61 meters

    • Spread

      1 foot (0.30 meters

    • Plant type


    • Hardiness zones


    • Native area

      Central Asia


  • money-bagGeneral Benefits

    • Aesthetic Appeal: Iris korolkowii, commonly known as the Blue Iris, adds visual interest to gardens with its striking flowers and foliage.
    • Habitat for Wildlife: The plant can provide food and habitat for pollinators like bees and butterflies.
    • Erosion Control: The root system of the Blue Iris can help stabilize soil and prevent erosion.
    • Drought Tolerance: Once established, it is relatively drought-tolerant, reducing the need for frequent watering.
    • Low Maintenance: The Blue Iris generally requires minimal care once it is established in a suitable location.
    • Seasonal Interest: It offers seasonal interest with its blooming period in spring, adding color to gardens when many other plants are not yet in peak.
    • Border Planting: Due to its size and shape, it is ideal for border plantings or as part of a mixed flower bed.
    • Culinary Use: Some parts of the Blue Iris are edible and can be used in culinary preparations, although this use is not widespread.
    • Cultural Significance: It may hold cultural or historical significance in certain regions, valued for its beauty and as a symbol in art and mythology.
    • Versatility: The plant can be used in a variety of landscape designs, from formal to wildflower gardens.

  • medicalMedical Properties

    • Antimicrobial: Iris korolkowii may possess substances with antimicrobial properties that can inhibit the growth of certain bacteria and fungi.
    • Anti-inflammatory: Some components found in the plant might have anti-inflammatory effects that help reduce inflammation in the body.
    • Diuretic: There is a possibility that Iris korolkowii has diuretic properties, promoting the increase of urine production and thus aiding in the removal of excess fluids.
    • Gastric health: It could potentially have beneficial effects on the gastrointestinal system, such as soothing stomach discomfort.
    • Respiratory health: The plant may contain compounds that support respiratory health, possibly by reducing coughs or clearing congestion.

  • windAir-purifying Qualities

    This plant is not specifically known for air purifying qualities.

  • leavesOther Uses

    • Iris korolkowii, or the Blue Iris, can be used in the art of flower pressing, where its distinctive bloom is preserved for craft projects such as greeting cards and bookmarks.
    • The rhizomes of Blue Iris can be dried and used in potpourri mixtures to add a touch of natural fragrance to a room.
    • Blue Iris flowers can be used as edible decorations for cakes and desserts, adding an elegant and colorful touch to culinary creations.
    • The strong fibers from the leaves of the Blue Iris may be utilized in the manufacturing of natural ropes or twines.
    • Blue Iris petals can also be used to make natural dyes for fabrics, imparting a gentle blue or purple hue to textiles.
    • In landscape design, Blue Iris can be used as a water plant in garden ponds or fountains, contributing to the aesthetic appeal of water features.
    • The plant can be included in butterfly gardens as it attracts pollinators, enhancing biodiversity and garden health.
    • Dried Blue Iris flowers can be incorporated into herbal sachets that are placed in drawers and closets to impart a fresh, pleasant scent to linens and clothing.
    • The Blue Iris is suitable for cut flower arrangements and is especially valued for its unique form and shade that adds diversity to floral designs.
    • Photographers and artists may use Blue Iris as a subject to capture the essence of spring and the natural beauty in landscapes or still life compositions.

Interesting Facts

  • bedFeng Shui

    The Juno iris is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    The Juno iris is not used in astrology practice.

  • spiralPlant Symbolism

    • Royalty: Iris is often associated with royalty due to its regal appearance and various iris species have been used as royal symbols throughout history.
    • Wisdom: In Greek mythology, Iris is the name of the goddess of the rainbow, symbolizing a bridge between heaven and earth, and is often linked to wisdom and valued knowledge.
    • Faith: The iris is seen as a symbol of faith, particularly in Christianity, where it is associated with the Virgin Mary and the concept of 'Our Lady's Virtues'.
    • Hope: The flower’s three upright petals are said to symbolize faith, valor, and wisdom, qualities that are intrinsically tied to the feeling of hope.
    • Courage: The iris has historically been used to convey courage, especially when faced with adversity, due to its ability to flourish in a variety of conditions.
    • Purity: The clean, crisp appearance of the iris allows it to be symbolic of purity, echoing its use in religious and sacred contexts.
    • Messages: As the flower named for the Greek messenger goddess, the iris can symbolize the idea of communication and the delivery of messages.

Every 1-2 weeks
2500 - 10000 Lux
Every 3-5 years
Spring to summer
As needed
  • water dropWater

    For the Juno iris, generally water deeply once a week, allowing the soil to dry out slightly between waterings. In hotter, drier climates, watering may need to be slightly more frequent, but always check the moisture level of the soil to avoid overwatering. During the growing season, an approximate guideline could be about 1 gallon of water per plant per week, depending on weather conditions and soil type. In winter, reduce the frequency as the plant enters a dormant phase. Ensure that the plant is situated in well-draining soil to avoid root rot.

  • sunLight

    Juno iris thrives under full sun to partial shade conditions. It prefers a location that receives at least 6 hours of sunlight daily. An ideal spot would be one where it's exposed to the morning sun but protected from the intense afternoon heat, especially in hotter climate regions.

  • thermometerTemperature

    Juno iris favors temperatures between 50°F and 70°F and can handle short periods of colder or hotter weather. It can survive minimum temperatures down to around 15°F. To ensure healthy growth, avoid exposing the Juno iris to extreme heat above 90°F or prolonged freezing conditions.

  • scissorsPruning

    Prune the Juno iris to remove spent flowers and maintain plant appearance, typically just after bloom in late spring or early summer. Deadheading encourages additional blooms and prevents the plant from spending energy on seed production. Every few years, prune and divide clumps in late summer to ensure vigorous growth and flowering.

  • broomCleaning

    Not needed

  • bambooSoil

    Juno iris prefers well-draining soil with a neutral to slightly alkaline pH level, between 6.8 to 7.8 is ideal. A mixture composed of three parts garden soil, two parts sand, and one part compost or well-rotted manure will provide the right balance of nutrients and drainage.

  • plantRepotting

    Juno iris typically doesn't need frequent repotting and can be left undisturbed for several years. These irises are best repotted only when the clumps become overcrowded, typically every three to five years to maintain health and vigor.

  • water dropsHumidity & Misting

    Juno iris does not require high humidity and can tolerate the dry air typical of most temperate climates. Average room humidity is generally sufficient for healthy growth.

  • pinSuitable locations

    • Indoor

      Ensure bright light, cool temperature, and good air circulation.

    • Outdoor

      Plant in sunny spot, with well-draining soil, avoid wet feet.

    • Hardiness zone

      4-9 USDA

  • circleLife cycle

    Iris korolkowii, commonly known as the Juno iris, begins its life cycle as a seed that germinates in favorable conditions of soil and temperature. After germination, it develops a root system and foliage, growing into a vegetative state as a perennial plant. The Juno iris produces leaves in the fall which overwinter, and then in late winter to early spring, it develops a flowering stalk, blooming with distinctive flowers, often in shades of blue, yellow, or white. Following pollination by insects, the flowers produce seed capsules, which contain numerous seeds that mature by late summer. As a perennial, the underground rhizomes of the plant survive year to year, enabling the plant to persist and grow larger over time. The plant may also be propagated vegetatively through division of the rhizomes after several years of growth.

  • sproutPropogation

    • Propogation time

      Spring to summer

    • The most popular method of propagating Iris korolkowii, commonly known as Juno iris, is by dividing the rhizomes. This process should take place shortly after the plant has finished blooming, typically in late summer to early fall. To propagate, the gardener should carefully dig up the clumps of rhizomes and gently separate them, ensuring that each division has at least one healthy fan of leaves. The divisions should then be replanted at the same soil depth they were originally growing at, spaced approximately 12 to 24 inches apart (30 to 60 cm). The replanted rhizomes should be watered thoroughly to establish them in their new location. Over time, these divisions will grow into mature plants that will continue to spread and produce the characteristic violet-blue flowers of the Juno iris.