Bearded Iris Iris 'Bronzaire' (IB)

☠ Toxic to humans
🐾 Toxic to pets
🌸 Blooming
🍪 Not edible
‍🌱 Easy-care
iris 'Bronzaire'


The Iris 'Bronzaire' is a distinctive and eye-catching plant, easily recognized for its unique color palette and elegant form. The most striking feature of the Iris 'Bronzaire' is its blooms. The flowers exhibit a deep bronze and coppery hue, with petals that often exhibit a gradation of colors—from golden yellow at the edges to warm, burnished tones closer to the center. The petals might have a velvety texture, with the typical iris flower form: three upright standards and three downward-curving falls. The falls may also display intricate veining or a splash of brighter color, such as yellow or orange, near the beard. The beard itself, a fuzzy line that runs down the middle of each fall, can be pronounced and is likely to have a contrasting color that stands out against the rest of the petal. It may be plush and bright, catching the eye and adding to the overall allure of the flower. The leaves of the Iris 'Bronzaire' are sword-shaped, coming up from the base of the plant in dense clumps. They are a rich, dark green color, often with a slightly glossy or matte finish, providing a striking backdrop for the spectacular flowers. The foliage may remain attractive even when the plant is not in bloom, offering a sharp, vertical aspect to the garden. The overall appearance of the Iris 'Bronzaire' is one of dramatic elegance and vivid, warm colors that can add a touch of sophistication to any garden setting.

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Bearded Iris, German Iris

    • Common names

      Iris 'Bronzaire'

  • skullToxicity

    • To humans

      The plant commonly known as the Iris can be toxic to humans if ingested. The rhizomes (rootstocks) contain irisin, iridin, or irisine which can cause digestive discomfort, including nausea, vomiting, abdominal pain, and diarrhea. Handling the plant can sometimes cause skin irritation due to its irritating sap, so it is advisable to wear gloves when working with Irises. Ingesting parts of this plant, especially in large quantities, can be harmful and medical attention should be sought if poisoning is suspected.

    • To pets

      The Iris plant is also toxic to pets, including dogs and cats. If a pet ingests part of the plant, particularly the rhizomes, they may experience symptoms such as drooling, vomiting, diarrhea, lethargy, and abdominal pain. In severe cases, ingestion can lead to more serious symptoms such as difficulty breathing and an increased heart rate. If you suspect your pet has ingested Iris, it is important to contact your veterinarian or an emergency animal clinic immediately.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      2-3 feet (60-90 cm)

    • Spread

      1-2 feet (30-60 cm)

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Aesthetic Appeal: IB adds visual interest to gardens with its unique bronze-toned flowers.
    • Ease of Care: This variety of iris is known for being low maintenance and easy to grow.
    • Drought Tolerance: Once established, IB can withstand periods of low water availability.
    • Pollinator Attraction: The flowers of IB attract bees and butterflies, promoting biodiversity.
    • Cold Hardy: IB is resilient in cooler climates and can survive frost with minimal protection.
    • Versatility in Landscaping: Suitable for borders, beds, and as a focal point in gardens. It can also be used in cut flower arrangements.
    • Soil Improvement: IB can help with soil stabilization and prevent erosion in certain garden settings.
    • Propagation: This plant can be easily propagated, allowing gardeners to expand their collection or share with others.

  • medicalMedical Properties

    This plant is not used for medical purposes.

  • windAir-purifying Qualities

    This plant is not specifically known for air purifying qualities.

  • leavesOther Uses

    • The tall, sturdy stems of Iris 'Bronzaire' can be used in floral arrangements as a focal point due to their dramatic color and large blooms.
    • Fine artists may use the petals of the Iris 'Bronzaire' as a natural pigment source for paintings and textile dyes, crafting a unique bronze hue.
    • The plant can act as a natural pest deterrent in gardens since some insects tend to avoid irises due to their fragrance and foliage.
    • Photographers and painters might seek out Iris 'Bronzaire' as a subject for their work, inspired by its striking appearance and color.
    • Iris 'Bronzaire' can be used in educational settings such as botany or horticulture classes to illustrate hybridization and cultivation techniques.
    • In theme gardens, such as those dedicated to a single color palette, Iris 'Bronzaire' can be strategically planted for its bronze tones.
    • Culinary enthusiasts might crystallize the petals of the Iris 'Bronzaire' for decorative, edible garnishes on desserts, though caution is advised as not all iris species are edible.
    • The fibers from Iris 'Bronzaire' leaves may be explored for use in paper making or crafting small artisanal objects like baskets.
    • During blooming season, the Iris 'Bronzaire' can attract pollinators like bees and butterflies, contributing to the health of the local ecosystem.
    • Garden designers may use the Iris 'Bronzaire' to create patterns and borders in landscape designs due to its distinct form and color.

Interesting Facts

  • bedFeng Shui

    The Iris is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    The Iris is not used in astrology practice.

  • spiralPlant Symbolism

    • Wisdom: The iris is often associated with wisdom, as it is named after the Greek goddess Iris, who is linked to communication and messages from the gods.
    • Hope: The iris is a symbol of hope, portraying optimism for the future.
    • Faith: With its intricate design, the iris is commonly seen as a symbol of faith, representing belief in something beyond oneself.
    • Courage: In some cultures, the iris stands for courage, due to its tall and upright stature.
    • Purity: The stunning bloom suggests purity, particularly the white iris, which is often used in bridal bouquets.

Every 7-10 days
2500 - 10000 Lux
Every 2-3 years
Spring to Summer
As needed
  • water dropWater

    Bearded Iris, commonly known as Iris 'Bronzaire', requires moderate watering to maintain moist, but not saturated soil, especially during the growing season. Water the plant deeply once a week with about 1 to 1.5 gallons of water, ensuring that you're wetting the soil and not just the surface. Reduce watering to every other week or less after flowering has finished and the plant enters its dormant phase. It's crucial to avoid overwatering, as standing water can lead to root rot. During the winter months, natural rainfall should suffice unless the weather is particularly dry.

  • sunLight

    Bearded Iris thrives in full sun, so Iris 'Bronzaire' should be planted in a location where it can receive at least 6 hours of direct sunlight per day. The best spot for this plant is in an unobstructed southern or western exposure to ensure ample light for vigorous growth and optimal flowering.

  • thermometerTemperature

    Bearded Iris, including Iris 'Bronzaire', prefers temperate climates and performs well in temperatures ranging from approximately 30 to 90 degrees Fahrenheit. The plant can survive minimum winter temperatures down to 10 degrees Fahrenheit. For optimal growth, daytime temperatures between 60 and 70 degrees Fahrenheit are ideal.

  • scissorsPruning

    Pruning is essential for the health of the Bearded Iris, including Iris 'Bronzaire'. Remove spent flower stalks after blooming to redirect energy to the rhizomes for next year's growth. In late summer or fall, trim away any brown or damaged leaves to prevent disease. Cut foliage back to 4 to 6 inches in a fan shape after the first frost has killed the leaves. Pruning should be performed annually for best plant health and to encourage more robust blooming.

  • broomCleaning

    As needed

  • bambooSoil

    The best soil mix for a Bearded Iris like 'Bronzaire' should be well-draining and slightly acidic to neutral, with a pH range of 6.0 to 7.0. A mix of two parts loam, one part sand, and one part compost or aged manure will create a fertile and well-aerated environment for the roots.

  • plantRepotting

    Bearded Irises like 'Bronzaire' generally do not need to be repotted often. They should be divided and replanted in fresh soil every three to five years to prevent overcrowding and maintain vigor.

  • water dropsHumidity & Misting

    Bearded Irises such as 'Bronzaire' are adaptable to a wide range of humidity conditions and do not require high humidity levels. Average ambient humidity is typically sufficient for these plants.

  • pinSuitable locations

    • Indoor

      Ensure bright light, cool temps, and good airflow for indoor Bearded Iris.

    • Outdoor

      Plant in full sun, well-drained soil, and provide space to grow.

    • Hardiness zone

      3-9 USDA

  • circleLife cycle

    The life cycle of the Iris 'Bronzaire', commonly known as the Bearded Iris, begins with seed germination or division of rhizomes, with the latter being the most common method for cultivating this cultivar. After planting, the rhizomes develop roots and shoots, entering a vegetative growth phase characterized by the development of long, sword-like leaves in fan-like clusters. In spring to early summer, flowering stalks emerge from the fans, with each stalk bearing multiple buds that bloom into the distinctive bronze and violet-colored flowers. Post-bloom, the plant directs energy into the rhizome for the next season, while leaves continue photosynthesis. As autumn approaches, the foliage dies back, and the plant enters a period of dormancy during the colder months. With the return of warmer weather in spring, the cycle begins anew, with new growth sprouting from the rhizome.

  • sproutPropogation

    • Propogation time

      Spring to Summer

    • The most popular method of propagating Iris 'Bronzaire', commonly known as Bearded Iris, is by division. This process is typically done in late summer after the flowering has ceased, when the plant is dormant. To propagate by division, carefully dig up the Iris clump and gently separate the rhizomes, ensuring that each section has at least one fan of leaves. Trim the leaves to about one-third their height, which is usually around 4 to 6 inches (10 to 15 centimeters), to reduce water loss. Plant the divided rhizomes into well-draining soil at a depth where the top of the rhizome is just slightly below the soil surface, and water them in well. This method of propagation helps to rejuvenate older clumps, encourages blooming, and increases the number of plants in your garden.