Alexander Rhododendron Rhododendron 'Alexander' (EA)

☠ Toxic to humans
🐾 Toxic to pets
🌸 Blooming
🍪 Not edible
‍🌱 Hard-care
rhododendron 'Alexander'


The Rhododendron 'Alexander' showcases an eye-catching display of vibrant blooms. This particular variety is admired for its large, showy flowers which are a striking shade of pink. Resembling lush bouquets, each flower cluster creates a dramatic display against the dark green foliage that serves as a rich backdrop. The leaves themselves are glossy and leathery to the touch, contributing to a robust and full appearance of the plant. The foliage retains its lush green color throughout the year, ensuring that the plant remains decorative even when not in bloom. As for the blooms, they emerge from bud in late spring, and the trumpet-shaped flowers are known for their deep pink border that gradually transitions into a lighter center with an almost white throat. The contrast of the dark green leaves and the bright pink flowers truly makes the Rhododendron 'Alexander' a stunning addition to any garden that’s graced by its presence.

Plant Info
Common Problems

About this plant

  • memoNames

    • Synonyms

      Alexander Rhododendron, Alexander Azalea.

    • Common names

      Rhododendron 'Alexander' (EA)

  • skullToxicity

    • To humans

      Rhododendron, including the 'Alexander' variety, contains toxic compounds known as grayanotoxins which are poisonous to humans if ingested. Symptoms of rhododendron poisoning can include vomiting, diarrhea, drooling, weakness, loss of coordination, leg paralysis, coma, and potentially death due to cardiovascular collapse.

    • To pets

      Rhododendron is toxic to pets, including cats and dogs. Ingesting even a few leaves can cause severe symptoms such as vomiting, diarrhea, drooling, weakness, changes in heart rate, abnormal heart rhythms, leg paralysis, coma, and can be potentially fatal due to cardiovascular collapse. Immediate veterinary attention is necessary if a pet ingests any part of the plant.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      6 feet [1.83 meters]

    • Spread

      6 feet [1.83 meters]

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Aesthetic Appeal: Rhododendrons are widely appreciated for their stunning, showy blooms that enliven gardens with vibrant color.
    • Versatility: They can be used as specimen plants, in shrub borders, and in mass plantings to create visual impact.
    • Attracts Pollinators: The flowers provide nectar for bees and other pollinating insects, supporting local ecosystems.
    • Evergreen Foliage: Rhododendrons provide year-round interest with their evergreen leaves, adding structure and greenery even in winter.
    • Shade Tolerance: These plants can thrive in dappled shade, making them suitable choices for woodland gardens or shaded areas.
    • Durability: Once established, many rhododendron varieties are quite hardy and can tolerate a range of conditions.
    • Low Maintenance: Rhododendrons generally require minimal pruning and can be easily cared for, ideal for low-maintenance landscapes.

  • 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

    • Culinary Garnish – The blooms of Rhododendron 'Alexander' can be used as an attractive, edible garnish on salads and desserts, assuming they are free from pesticides and not from a toxic variety.
    • Dye Production – The plant’s flowers can be used to produce natural dyes for fabric or paper, offering hues ranging from pale pinks to vibrant reds.
    • Ikebana (Japanese Flower Arranging) – With its striking flowers and foliage, the plant can be an important element in Ikebana arrangements, honored for its beauty and seasonal significance.
    • Honey Production – Bees can produce a unique, though potentially toxic type of honey known as "mad honey" from the nectar of Rhododendron 'Alexander', which must be consumed with caution due to its properties.
    • Photography – With its vibrant flowers, Rhododendron 'Alexander' is a popular subject for garden and plant photographers seeking to capture the beauty of nature.
    • Aromatherapy – While not a traditional aromatherapy plant, the subtle fragrance of the flowers can be included in potpourri mixes for natural home scenting.
    • Plant Propagation Education – The Rhododendron 'Alexander' can be used as a teaching tool for horticultural classes covering topics like cutting, grafting, or hybridization.
    • Landscape Painting – Artists may use the vivid colors and full blooms of Rhododendron 'Alexander' as inspiration in landscape paintings.
    • Seasonal Celebrations – In cultures that celebrate the blooming of flowers, the Rhododendron 'Alexander' can be incorporated into events and festivals as a symbol of spring.
    • Handicraft Material – The sturdy branches and attractive leaves can be used in the crafting of wreaths, floral headpieces, or other decorative items.

Interesting Facts

  • bedFeng Shui

    The Rhododendron is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    The Rhododendron is not used in astrology practice.

  • spiralPlant Symbolism

    • Beware: Rhododendrons in general are known to have toxic leaves and this has been taken symbolically to represent caution or danger.
    • Elegance: The Rhododendron 'Alexander' has beautiful, showy flowers that evoke a sense of sophistication and elegance.
    • Abundance: With its lush, full blossoms, this plant is often associated with abundance and wealth.
    • Homecoming: In some cultures, the Rhododendron is a symbol of returning home or coming back, possibly due to its perennial nature.

Every 7-10 days
500 - 2500 Lux
Every 2-3 years
Spring-Early Summer
As needed
  • water dropWater

    The Rhododendron, commonly referred to as the Azalea, requires consistent moisture but should not be overwatered. Water deeply and thoroughly when the top inch of soil feels dry to the touch, which could be about once a week. During hot weather or if planted in sandy soil, it might need water twice a week. Each watering session should involve slowly adding water until it begins to run out of the bottom of the container, or soaking the ground around the plant with about 1 to 1.5 gallons of water, depending on the size and maturity of the plant. In cooler weather or during the dormant season, reduce the frequency of watering.

  • sunLight

    Azaleas thrive best in dappled sunlight or partial shade. The ideal spot would be under the canopy of tall trees that provide filtered sunlight, protecting the Azaleas from harsh afternoon sun. They can tolerate some full sun in cooler climates but prefer a few hours of morning light followed by afternoon shade to ensure their delicate flowers do not burn.

  • thermometerTemperature

    Azaleas flourish in a wide range of temperatures, but prefer a moderate climate. Ideally, they should be kept in environments where the temperature ranges from 50°F to 70°F. However, they can tolerate temperatures as low as 20°F in the winter and as high as 80°F in the summer, but they will need adequate protection from frost and heat stress at these extremes.

  • scissorsPruning

    Azaleas benefit from pruning to shape the plant, encourage bushiness, and remove dead or diseased wood. Pruning should be done immediately after the spring blooming period, as the plant begins setting new buds shortly after flowers fall. Avoid heavy pruning late in the season as this can remove next year's flowers. Typically, cutting back the branches by about a third is recommended, but only if shaping is needed.

  • broomCleaning

    As needed

  • bambooSoil

    Rhododendrons require an acidic soil mix with a pH between 4.5 to 6.0, high in organic matter. A recipe for Rhododendron soil mix would include peat moss, pine bark, and perlite in equal parts to ensure good drainage and aeration. The use of ericaceous compost is also beneficial for these acid-loving plants.

  • plantRepotting

    Rhododendrons, also known as Azaleas, are typically repotted every 2 to 3 years. It is best to repot these plants in spring just before they enter their growth period, ensuring that they have room to grow and a fresh supply of nutrients.

  • water dropsHumidity & Misting

    Azaleas prefer a humidity level of around 40-60%. They thrive in environments with moderate humidity but do not require the high humidity levels that some tropical plants need. Avoiding excessively dry conditions is crucial for their well-being.

  • pinSuitable locations

    • Indoor

      Place Azaleas in bright, indirect light and water when top soil feels dry.

    • Outdoor

      Plant Azaleas in partial shade, protect from strong winds, water well.

    • Hardiness zone

      5-8 USDA

  • circleLife cycle

    The life of Rhododendron 'Alexander' (often referred to simply as Rhododendron) begins with germination, where seeds require stratification and moisture to sprout. The seedling stage follows, marked by the emergence of the first leaves and root system establishment. As it enters the vegetative growth phase, the plant develops a woody structure and foliage, and it may take several years before it's mature enough to bloom. The flowering stage is characterized by vibrant blooms that typically appear in spring, attracting pollinators. After pollination, the plant produces seed capsules, which eventually dry and release seeds to start a new generation. The plant then enters a phase of senescence as it ages, with a gradual decline in vigor and reproduction until it eventually dies.

  • sproutPropogation

    • Propogation time

      Spring-Early Summer

    • The Rhododendron 'Alexander', commonly known as Alexander Rhododendron, is typically propagated through semi-hardwood cuttings. This method is most effective when performed during the late summer, as the plant is beginning to enter dormancy but the new growth has had time to mature slightly. To execute this technique, a cutting of about 4 to 6 inches (10 to 15 cm) is taken from a healthy, disease-free branch. The lower leaves are removed to expose a section of the stem, and the cut is dipped into a rooting hormone to encourage root development. The prepared cutting is then placed into a potting medium that is kept moist and well-drained. Provision of a humid environment, often achieved by covering the pot with a plastic bag or placing it in a propagation chamber, is critical for encouraging root growth. With proper care, roots will typically develop within several weeks, after which the new Alexander Rhododendron plant can be gradually acclimated to less humid conditions and eventually planted out.