Tall Bearded Iris Iris 'Vicomtesse de Curel' (TB)

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


Iris 'Vicomtesse de Curel' is a type of Iris known for its striking and elegant appearance, which makes it a popular choice for gardens and floral arrangements. This perennial has a clumping growth habit with sword-like leaves that are bluish-green in color and have a slightly arching form. The most captivating feature of this Iris is its blossoms. The flowers are large and showy, with each bloom consisting of six petal-like segments. Three of these segments, known as "standards," stand upright and are gracefully shaped, while the other three, known as "falls," dangle downwards, often exhibiting a gentle ruffle or flaring outwards. The coloration of the 'Vicomtesse de Curel' flowers is particularly enchanting, displaying a range of hues from deep purples and violets to lighter lavender and sometimes blue tones, often with a touch of white or yellow near the center. The petals may also have delicate veining or contrasting colors that accentuate their shape and depth. The bloom period of this Iris is in the spring to early summer, during which it becomes a focal point in the landscape due to its vibrant blooms. The flowers not only add visual interest but also attract pollinators such as bees and butterflies, contributing to the biodiversity of the garden. After flowering, the plant will produce seed pods, and while these are not as visually striking as the flowers, they add a different element of interest to the plant's overall appearance. The Iris 'Vicomtesse de Curel' is known for its hardiness and resilience, making it a lasting presence in the garden with the right care.

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Tall Bearded Iris, Bearded Iris

    • Common names

      Iris 'Vicomtesse de Curel'.

  • skullToxicity

    • To humans

      The Tall Bearded Iris, like other members of the Iris genus, can be toxic if ingested. The rhizomes (underground stems) contain irisin, iridin, or irisine, which are irritating substances. If ingested, these can cause symptoms such as stomach pain, nausea, vomiting, and diarrhea. Handling the plant, particularly the rhizomes, can also cause skin irritation in some individuals. It is generally recommended to avoid ingestion of any part of the Tall Bearded Iris plant to prevent these potential health issues.

    • To pets

      The Tall Bearded Iris is also toxic to pets, including dogs and cats. The rhizomes contain compounds that can cause gastrointestinal upset if ingested, leading to symptoms such as salivation, vomiting, drooling, lethargy, and diarrhea. The severity of symptoms can vary depending on the amount ingested and the size of the pet. It is advisable to prevent pets from having access to the rhizomes and other parts of the Tall Bearded Iris plant to avoid these adverse health effects.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      2 feet 8 inches (81 centimeters)

    • Spread

      1 foot 8 inches (50 centimeters)

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Aesthetic Appeal: The Iris 'Vicomtesse de Curel' is known for its beautiful, large, lavender-blue flowers that add visual interest to any garden setting.
    • Ease of Growth: Irises are relatively easy to grow and maintain, making them suitable for both experienced and novice gardeners.
    • Diversity in Landscaping: The tall bearded iris offers vertical structure and can be used in borders, beds, and as a backdrop for shorter plants.
    • Pollinator Attraction: The vibrant blossoms attract pollinators such as bees and butterflies, which are essential for the health of the ecosystem.
    • Seasonal Interest: Irises typically bloom in late spring, providing a timely burst of color after the earliest spring flowers have faded.
    • Drought Resistance: Once established, Iris 'Vicomtesse de Curel' is quite drought-tolerant, making it a good choice for water-wise gardens.
    • Perennial Growth: As a perennial, the Iris 'Vicomtesse de Curel' will return year after year, offering long-term presence in the garden.
    • Division and Propagation: Irises can be divided and propagated easily, which is a cost-effective way to expand your garden or share with friends.
    • Cutting Gardens: The flowers are excellent for cutting and creating indoor floral arrangements.
    • Deer Resistance: Irises are generally not a preferred food source for deer, reducing the risk of damage from wildlife.

  • 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

    • Photography Subject: The striking colors of the Iris can make it an excellent subject for both professional and amateur photographers, especially during its blooming season.
    • Natural Dyes: The petals of Irises can be used to create natural dyes for fabrics, though the 'Vicomtesse de Curel' variety may produce specific, unique hues due to its coloration.
    • Culinary Garnish: Edible varieties of Irises can be used as an ornamental garnish in culinary dishes, adding a touch of elegance to the presentation.
    • Fragrance Extraction: Iris flowers are sometimes used in the production of high-end perfumes, and the 'Vicomtesse de Curel' could contribute a distinct fragrance note.
    • Artistic Inspiration: The unique beauty of the Iris 'Vicomtesse de Curel' can be a muse for artists, inspiring paintings, drawings, and other forms of artwork.
    • Ink Production: The pigments of the Iris petals could potentially be used in the creation of natural inks for calligraphy or art projects.
    • Wedding Decor: With its elegant appearance, the Iris can be used in wedding bouquets, centerpieces, or venue decorations for a sophisticated look.
    • Eco-Friendly Confetti: Dried petals of the Iris can be used as biodegradable confetti for celebrations, adding a colorful and eco-friendly option to festivities.
    • Mood Setting: The presence of Irises in a room can help set a calming and serene mood, suitable for spaces like spas or retreat centers.
    • Teaching Tool: In educational settings, the Iris can be used to teach students about botany, plant physiology, and the importance of pollinators in ecosystems.

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

    • Faith: The Iris is commonly associated with faith, embodying the trust and belief in higher powers or ideals.
    • Hope: It is a symbol of hope, conveying a sense of expectation and optimistic outlook toward the future.
    • Wisdom: The Iris often represents wisdom, suggesting knowledge, enlightenment, and an appreciation for deeper understanding.
    • Courage: This plant can also be emblematic of courage, highlighting the bravery required to face challenges head-on.
    • Purity: Irises are frequently associated with purity, reflecting innocence and the unstained nature of the soul.
    • Royalty: With its regal appearance, the Iris can symbolize royalty and the noble qualities associated with kings and queens.

As needed
2500 - 10000 Lux
Every 3-5 years
Late Summer
As needed
  • water dropWater

    Tall bearded irises like the 'Vicomtesse de Curel' require moderate watering, especially during the growing season. It's essential to water deeply but infrequently to encourage root growth; generally, this means providing about an inch of water per week. If you're using gallons, aim for roughly half a gallon per square foot every seven days. Watering should be done early in the day to allow the foliage time to dry, as wet leaves can promote disease. During the dormant period in late summer to early fall, reduce watering significantly, only to prevent the soil from becoming bone dry.

  • sunLight

    Tall bearded iris, like the 'Vicomtesse de Curel,' thrives best in full sun. They require at least six to eight hours of direct sunlight daily to bloom prolifically. The ideal spot for these irises is an area where they can receive unfiltered sunlight throughout the day. However, in exceptionally hot climates, they will appreciate some light afternoon shade to protect them from the intense heat.

  • thermometerTemperature

    Tall bearded irises including 'Vicomtesse de Curel' prefer temperate conditions and can generally withstand temperatures as low as 10 degrees Fahrenheit during dormancy. Their ideal growing temperatures range from 55 to 75 degrees Fahrenheit. While they are robust and can survive high temperatures, prolonged exposure to temperatures over 90 degrees Fahrenheit may stress them.

  • scissorsPruning

    Tall bearded irises such as 'Vicomtesse de Curel' should be pruned to remove any dead or diseased foliage, which helps prevent iris borer and fungal diseases. Immediately after blooming, cut back flower stalks to the base. In late summer or early fall, trim foliage to about 6 inches to prepare the plants for winter and to tidy the garden. Pruning is also an opportunity to divide crowded clumps, which is typically done every 3 to 4 years.

  • broomCleaning

    As needed

  • bambooSoil

    Tall Bearded Iris, commonly known as Iris 'Vicomtesse de Curel', thrives best in well-drained, slightly acidic to neutral soil with a pH range of 6.5 to 7.0. A good mix for these irises would be a blend of loamy garden soil, well-rotted compost, and coarse sand to ensure adequate drainage. Adding in some bone meal can benefit the rhizomes for better flowering.

  • plantRepotting

    Tall Bearded Irises, including Iris 'Vicomtesse de Curel', typically do not need frequent repotting and can thrive in the same spot for several years. However, it's recommended to divide and repot these irises every 3 to 5 years to prevent overcrowding and to rejuvenate the plant's growth.

  • water dropsHumidity & Misting

    Iris 'Vicomtesse de Curel' or Tall Bearded Iris prefers a moderate humidity level. While they are tolerant of a range of humidity conditions, they do not require high humidity and can suffer if the air is too moist, which can lead to rhizome rot.

  • pinSuitable locations

    • Indoor

      Ensure bright light, good air flow, and water sparingly.

    • Outdoor

      Full sun, well-drained soil, and space rhizomes apart.

    • Hardiness zone

      3-9 USDA

  • circleLife cycle

    The Tall Bearded Iris 'Vicomtesse de Curel' begins its life cycle when a seed germinates, typically requiring a period of cold stratification to break dormancy. Upon sprouting, it develops a root system and foliage, growing into a small plant. Through its juvenile phase, leaves increase in size and number, and the plant establishes a rhizome underground which is essential for nutrient storage and vegetative reproduction. After a few seasons, the iris reaches maturity and begins its reproductive phase, producing characteristic large, ornate flowers that may be pollinated by insects. Following pollination, seeds form and are dispersed, but the iris more commonly propagates through division of its rhizomes, spreading asexually. The plant then enters a period of dormancy in winter, during which the above-ground foliage dies back, and the cycle is repeated when temperatures rise in spring.

  • sproutPropogation

    • Propogation time

      Late Summer

    • The primary method of propagating Iris 'Vicomtesse de Curel', commonly known as Tall Bearded Iris, is through division. This is typically done after the blooming period in late summer. Gardeners should carefully dig up the iris clumps and gently separate the rhizomes, ensuring that each division has at least one fan of leaves and a portion of the roots. The divided rhizomes are then replanted in well-draining soil, spacing them about 12 to 24 inches apart (30 to 60 centimeters) to allow for future growth. This method encourages rejuvenation of the plants and helps to prevent overcrowding, which can lead to diminished blooming.