Tall Bearded Iris Iris 'Alizes' (TB)

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


The Iris 'Alizes', more commonly referred to simply as the Iris, is a striking and elegant flower. Its appearance is characterized by intricately shaped petals that create a mesmerizing display. A typical Iris 'Alizes' bloom features petals in a lavish blend of colors; the petals themselves are a rich, velvety hue, often in shades of blue or purple, which are trademarks of the Iris family. The flower has three upright petals, known as standards, which are complemented by three downward curving petals called falls. The falls may sometimes exhibit a lighter or white area adorned with veining or speckles that add to their beauty. Additionally, the Iris 'Alizes' has long, sword-like leaves that grow vertically and are a deep green color. They create a contrasting backdrop to the vivid blossoms, which add to the plant's overall visual impact. The foliage has a slightly arching habit, which gracefully frames the showy flowers. Despite the absence of size in this description, the proportions of the Iris 'Alizes' contribute to a refined and sophisticated silhouette which is commonly associated with these much-admired garden plants.

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Tall Bearded Iris, Bearded Iris

    • Common names

      Iris 'Alizes' (TB).

  • skullToxicity

    • To humans

      The Tall Bearded Iris, including the Iris 'Alizes', is considered mildly toxic to humans. If ingested, it can cause gastrointestinal upset, such as nausea, vomiting, abdominal pain, and diarrhea. It is important to note that the rhizomes (underground stems) are the most toxic part of the plant. Accidental ingestion may also lead to symptoms such as skin irritation or an allergic reaction upon handling. Care should be taken to avoid consuming any part of the plant, and it is especially important to keep the rhizomes out of reach of children who might be tempted to taste them.

    • To pets

      The Tall Bearded Iris, including the Iris 'Alizes', is toxic to pets, such as cats and dogs. Ingestion of any part of the plant, particularly the rhizomes, can cause symptoms including vomiting, diarrhea, drooling, and lethargy. In severe cases, it might lead to more serious digestive problems. It is recommended to keep pets away from Tall Bearded Irises and to contact a veterinarian immediately if you suspect that your pet has ingested any part of the plant.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      3 feet (91 cm)

    • Spread

      1 foot (30 cm)

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Decorative appeal: Iris 'Alizes' adds striking color and form to the garden with its deep blue to violet flowers.
    • Easy cultivation: They are generally easy to grow and require minimal maintenance once established.
    • Long blooming season: This variety often has a long flowering period in the spring, providing extended visual interest.
    • Attracts pollinators: Irises are known for attracting bees, butterflies, and other beneficial pollinators.
    • Drought resistance: Once established, they can tolerate periods of drought, making them suitable for water-wise gardens.
    • Cold hardy: Iris 'Alizes' is tolerant of cold temperatures, making it a suitable perennial for many temperate climates.
    • Soil adaptability: They can thrive in a variety of soil conditions, though they prefer well-drained soil.
    • Multiplication: These plants can multiply from their rhizomes, allowing gardeners to divide and share them easily.

  • 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

    • Botanical Illustration Subjects: Iris 'Alizes' are popular among botanical artists for their striking colors and complex form, making for challenging and beautiful illustrations.
    • Photography Projects: Due to their dramatic appearance, these plants can be breathtaking subjects for photography enthusiasts aiming to capture the intricacy of nature.
    • Dye Production: The petals of some Iris species can be used to produce natural dyes for textile art, giving fabric a soft, bluish-purple tint.
    • Environmental Education: These plants can serve as a tool for teaching about plant reproduction and biodiversity within gardens and ecosystems.
    • Culinary Garnish: While not widely known for culinary uses, the petals of some edible iris species can be used as a decorative, non-toxic garnish for salads and desserts.
    • Tool for Pollinator Support: Planting Iris 'Alizes' can provide necessary sustenance for local pollinators like bees and butterflies, supporting their populations.
    • Fragrance Extraction: Some iris species are used in perfumery for their attractive scent, extracted from the rhizomes, and could potentially inspire homemade fragrances.
    • Craft Projects: Dried iris petals and seeds can be incorporated into craft projects, such as making potpourri or decorative seed packets for gifts.
    • Wedding Decor: Their elegant stems and flowers can be used for creating stunning natural wedding décor, from table centerpieces to bridal bouquets.
    • Floral Arrangements: Beyond their garden appeal, Iris 'Alizes' can be used in cut flower arrangements to add a vibrant pop of color and structure to a bouquet.

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 often associated with faith, trust, and belief. Its intricate design and stature reflect a confidence that can inspire faithfulness in relationships and spirituality.
    • Hope: Blooming irises bring hope and the promise of a fresh start, signaling the arrival of spring and the potential for new beginnings.
    • Wisdom: In some cultural contexts, irises symbolize wisdom and valued knowledge, possibly because of their regal appearance and association with deities in mythology.
    • Courage: The iris can represent courage and admiration for how it stands tall and boldly displays its vibrant petals.
    • Purity: The iris often signifies purity, especially because of its delicate and pristine bloom that emerges unblemished from a muddy aquatic environment.

Every 7-10 days
2500 - 10000 Lux
Every 3-5 years
Midsummer to early fall
As needed
  • water dropWater

    Tall Bearded Iris 'Alizes' should be watered thoroughly but infrequently once they are established, as their rhizomes are susceptible to rot if kept too moist. During the growing season, provide approximately an inch of water per week through rainfall or irrigation, letting the soil dry between waterings. In hotter, dry climates, you may need to water more frequently, but always allow the top few inches of soil to dry out before adding more water. Reduce watering after flowering has finished and during the winter months to prevent rot. Since they are drought-tolerant, it's better to underwater than to overwater.

  • sunLight

    Tall Bearded Iris 'Alizes' thrives best in full sun conditions, which means they should receive at least six to eight hours of direct sunlight each day. The ideal spot for planting them would be in a location that receives unobstructed sunlight for the majority of the day. Although they can tolerate light shade, too much shade can result in fewer blooms and a heightened risk of disease.

  • thermometerTemperature

    Tall Bearded Iris 'Alizes' prefer temperate climates and can generally survive in temperatures ranging from 5°F to 90°F. The ideal temperature for robust growth and flowering typically lies between 60°F and 75°F. These Irises go dormant in winter and can tolerate cold temperatures but should be protected from extreme cold by mulching over the rhizomes in areas with harsh winter conditions.

  • scissorsPruning

    Prune Tall Bearded Iris 'Alizes' by removing any dead or damaged leaves and spent flower stems to encourage proper air circulation and prevent disease. The best time to prune is immediately after flowering when you can cut back the flower stems to their base. Additionally, in late summer or early fall, trim back foliage by about a third to shape the plant and remove any old leaves to prepare for the next growing season.

  • broomCleaning

    As needed

  • bambooSoil

    The Tall Bearded Iris 'Alizes' thrives in well-draining, fertile soil with a slightly acidic to neutral pH of 6.5 to 7. To create an ideal soil mix, blend loamy garden soil with compost and coarse sand to ensure good drainage. Avoid soil that retains too much water, as this can lead to rhizome rot.

  • plantRepotting

    Tall Bearded Iris 'Alizes' typically do not require frequent repotting. They should be divided and replanted about every 3-4 years or when the clumps become crowded and flowering diminishes. Replant division in a well-draining soil mix to encourage healthy growth.

  • water dropsHumidity & Misting

    Tall Bearded Iris 'Alizes' is tolerant of a wide range of humidity conditions and does not require specific humidity levels. These irises are more dependent on proper soil moisture and do well in the average outdoor humidity found in their growing zones.

  • pinSuitable locations

    • Indoor

      Place in bright light, ensure good air circulation.

    • Outdoor

      Full sun, well-drained soil, divide every 3-4 years.

    • Hardiness zone

      3-9 USDA

  • circleLife cycle

    The Tall Bearded Iris 'Alizes' begins its life cycle when the mature plant's rhizomes, which are underground stems, sprout new shoots in early spring. These shoots grow into leafy stems that can reach up to three feet tall, and by late spring, distinctive colorful flowers bloom, showcasing the variety's unique coloration. After blooming, which usually occurs for a period of 3-6 weeks, the flowers fade and seed pods may form, although gardeners often remove spent blooms to encourage reblooming and to maintain plant vigor. Throughout the summer, the foliage remains green and photosynthetically active, supporting the plant's growth and rhizome energy storage. As fall approaches, the leaves may begin to die back as the plant enters dormancy to conserve energy for the winter. In winter, the rhizomes remain dormant underground, protected from the cold, until they resume growth the following spring, repeating the cycle.

  • sproutPropogation

    • Propogation time

      Midsummer to early fall

    • Propogation: The most popular method of propagating the Tall Bearded Iris, commonly known as 'Alizes', is by division. This is typically done after the flowering season has ended, which for Irises is generally late summer to early fall, when the weather is cooler. To propagate by division, you begin by lifting the Iris clump from the ground with a shovel or fork, taking care not to damage the rhizomes. Then, using a sharp knife, you separate the rhizomes, ensuring each piece has at least one fan of leaves and a section of roots. Trim the leaves to about a third of their length to reduce water loss. Finally, replant the rhizome pieces 12 to 24 inches apart and just deep enough so that the top of the rhizome is slightly below the soil surface, or approximately an inch deep (2.54 centimeters), to allow for new growth and adequate sunlight exposure.