Siberian Iris Iris 'Welfenprinz' (Sib)

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


Iris 'Welfenprinz' is a beautifully distinct genus of flowering plants, known widely as irises. This variety stands out for its unique flowers, which possess an exquisite blend of colors. The petals, known as falls and standards, exhibit a gradient of soft purple to deep violet shades, often with intricate veining and speckled patterns that add a touch of elegance to their appearance. The falls gracefully cascade downward, while the standards rise up, giving the flower a stately and regal presence. At the base of each fall, there's often a strikingly contrasted area known as the beard, which may have a plush texture and a color that complements or contrasts with the rest of the petal. The foliage of Iris 'Welfenprinz' consists of sword-shaped leaves that emerge from the base of the plant in a fan-like formation, creating a structured and upright visual appeal. These leaves are usually a deep green color, providing a wonderful backdrop that accentuates the beauty of the flowers. The leaves and flowers together contribute to the overall aesthetic, making Iris 'Welfenprinz' a favorite among gardeners for its ornamental beauty.

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Siberian Iris

    • Common names

      Iris sibirica 'Welfenprinz'

  • skullToxicity

    • To humans

      The Siberian Iris, generally speaking, is not highly toxic to humans. However, handling the plant, especially the rhizomes, can sometimes cause skin irritation due to the presence of certain compounds like irisin, iridin, or irisine. If ingested, parts of the Siberian Iris can cause digestive discomfort, nausea, vomiting, and diarrhea. It is always advisable to exercise caution and not consume any part of ornamental plants.

    • To pets

      Siberian Iris is considered to have low toxicity to pets. If ingested, it may cause mild stomach upset, evidenced by symptoms such as vomiting or diarrhea. The rhizomes are more likely to contain higher concentrations of irritating substances than the foliage or flowers, so pets should be deterred from chewing on these parts of the plant. Always keep an eye on pets in gardens with ornamental plants and consult a veterinarian if any unusual behavior or symptoms occur after ingestion.

  • 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

      Eastern Europe Asia


  • money-bagGeneral Benefits

    • Ornamental Appeal: Iris 'Welfenprinz' adds visual interest to gardens with its striking purple and blue flowers, enhancing the overall aesthetic.
    • Pollinator Attraction: This variety of iris attracts bees, butterflies, and other pollinators, supporting local ecosystems.
    • Low Maintenance: Irises generally require minimal care once established, making them suitable for gardeners of all skill levels.
    • Drought Tolerance: Once established, Iris 'Welfenprinz' has good drought tolerance, making it a sustainable choice for regions with water scarcity.
    • Versatility in Landscaping: It can be used in borders, beds, and as a cut flower, offering versatility in garden design.
    • Cold Hardiness: Irises are capable of surviving and thriving in cooler climates, often being hardy in USDA zones 3 through 9.
    • Multiplication: They naturally propagate and multiply once established, potentially providing more plants for the garden or to 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

    • Crafting Dyes: The Iris 'Welfenprinz' can be used to create natural dyes for fabrics, giving them a unique and vibrant hue.
    • Fragrance Extraction: The scent of the Iris 'Welfenprinz' can be extracted and used in perfumery to add a delicate, floral note to fragrances.
    • Photographic Subject: This variety of iris, due to its striking appearance, is commonly used by photographers looking for a vivid subject in their floral photography.
    • Water Garden Accent: Irises can thrive in wet conditions, making them suitable for water gardens or ponds as a decorative element.
    • Eco-Friendly Packaging: Dried and pressed Iris petals can be incorporated into eco-friendly packaging designs as an aesthetic enhancement.
    • Art Supplies: The petals of the 'Welfenprinz' can be used in art projects, such as pressing for botanical illustrations or mixed media art.
    • Culinary Garnish: While not commonly consumed, the petals can serve as an edible garnish for desserts and salads to add color and interest.
    • Garden Design: Irises are often used in garden design for creating patterns and borders due to their distinct form and color.
    • Literary Inspiration: The beauty and distinctiveness of the Iris 'Welfenprinz' can serve as an inspiration in poetry, literature, and other writing forms.
    • Educational Tool: Botanists and teachers may use this plant to educate about plant biology, hybridization, and horticultural practices.

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 often symbolizes faith, reflecting its stable and steadfast nature.
    • Hope - As a spring flower, the iris can represent hope and the arrival of warmer, sunnier times ahead.
    • Wisdom - Historically, the iris is associated with wisdom, both in Western and Eastern cultures.
    • Courage - The bold colors and upright posture of the iris suggest an embodiment of courage.
    • Purity - Traditionally, the white forms of iris represent purity and innocence.
    • Royalty - The luxurious appearance and regal stance of the iris sometimes symbolize royalty and noble bearing.

Every 7-10 days
2500 - 10000 Lux
Every 3-4 years
Late summer
As needed
  • water dropWater

    Siberian Irises like 'Welfenprinz' prefer consistent moisture, especially during the growing season. Water the plant deeply once a week, providing at least one to two gallons per plant, ensuring the soil is thoroughly moistened. In hotter, drier periods, increase watering frequency to twice a week. During the winter when the plant is dormant, reduce watering but do not allow the soil to completely dry out. Always allow the top inch of soil to dry out between waterings to prevent overwatering and potential root rot.

  • sunLight

    Siberian Iris 'Welfenprinz' thrives best in full sun to partial shade. The ideal spot for this iris is where it can receive at least six hours of direct sunlight daily. When given enough light, the plant will produce more vigorous growth and better blooms. In regions with very hot summers, provide some afternoon shade to protect the plant from intense heat.

  • thermometerTemperature

    The Siberian Iris 'Welfenprinz' is hardy and can tolerate a wide range of temperatures. It can survive minimum temperatures down to -30 degrees Fahrenheit and is comfortable in the maximum summer temperatures typical of temperate regions. The ideal growing conditions are between 50 to 75 degrees Fahrenheit, which promotes healthy growth and flowering.

  • scissorsPruning

    Prune Siberian Iris 'Welfenprinz' to promote health and vigorous growth by removing spent flowers and cutting back foliage to the ground in late fall after the first hard frost. Pruning is also necessary to remove any damaged or diseased leaves throughout the growing season. The best time for a major clean-up is in the fall or early spring before new growth starts.

  • broomCleaning

    As needed

  • bambooSoil

    The Siberian Iris 'Welfenprinz' thrives in well-drained, moderately fertile soil enriched with organic matter, with a pH ideally between 5.5 and 7. A good mix could be equal parts loamy garden soil, compost, and peat or leaf mold to retain moisture yet allow excess water to drain.

  • plantRepotting

    Siberian Iris 'Welfenprinz' typically does not need frequent repotting. It should be divided and repotted every 3 to 5 years to prevent overcrowding and maintain vigor, ideally in the late summer after flowering.

  • water dropsHumidity & Misting

    Siberian Iris 'Welfenprinz' tolerates a wide range of humidity levels. However, it prefers moderate humidity and doesn't require the high humidity levels that tropical plants might need. Normal outdoor humidity is generally sufficient for this Iris.

  • pinSuitable locations

    • Indoor

      Keep in bright light, cool temp, ensure good drainage.

    • Outdoor

      Full sun to part shade, moist well-drained soil, space rhizomes.

    • Hardiness zone

      3-9 USDA

  • circleLife cycle

    The life cycle of the Siberian Iris 'Welfenprinz' begins with seed germination, usually taking several weeks with exposure to cold temperatures in a process known as stratification. Once the seedling emerges and establishes, it enters vegetative growth, developing long slender leaves and a network of roots. The plant reaches maturity in a few years, at which time it begins the reproductive stage, characterized by the production of distinctive purple-blue flowers in late spring to early summer. After pollination, often by insects, seeds develop in pods and are dispersed when the pod splits open. The plant may also propagate vegetatively through rhizome division in the late summer or fall, which allows for the proliferation of clones identical to the parent plant. Overwintering occurs as the foliage dies back and the plant goes dormant, relying on its rhizomes to survive the cold season until the cycle restarts with new growth in the spring.

  • sproutPropogation

    • Propogation time

      Late summer

    • Propogation: The most popular method of propagation for the Siberian Iris 'Welfenprinz' is by division. This is best done in the late summer after flowering has finished or in early fall, allowing time for the plants to establish before winter. To propagate by division, carefully dig up the iris clump, making sure to keep a good portion of the roots intact. Gently separate the rhizomes with your hands or cut them with a clean, sharp knife, ensuring each division has several healthy roots and at least one fan of leaves. Trim the leaves back to about a third of their original length, approximately 4 to 6 inches (10 to 15 centimeters), to reduce transpiration and make handling easier. Replant the divisions at the same soil depth they were previously growing, spacing them about 18 to 24 inches (45 to 60 centimeters) apart to give them room to grow. Water them in well to settle the soil around the roots and continue with regular watering until they are established.