Rhododendron Rhododendron 'Hachmann's Marlis'

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


Rhododendron 'Hachmann's Marlis' is a vibrant, evergreen shrub known for its showy and appealing appearance. Its foliage presents a lush canopy of dark green leaves which provide a perfect backdrop for the stunning bloom display. These leaves are leathery with a glossy surface and may have a slightly wavy margin, adding texture to the overall look of the shrub. The flowers are the most striking feature of Rhododendron 'Hachmann's Marlis'. They emerge in clusters known as trusses, each holding multiple trumpet-shaped flowers that can make a spectacular show. The blooms themselves are large and often vibrantly hued, with shades that can range from soft pinks to rich purples. Some varieties of this Rhododendron may exhibit flowers with delicate speckling or freckling on their lobes, which further adds to their ornamental value. Rhododendron 'Hachmann's Marlis' has a robust and spreading habit, often creating a rounded or mound-like form. It is a favored choice for gardeners looking to add year-round interest, as it maintains its handsome foliage through the seasons, complemented by the burst of color when it flowers. The transition from buds to fully opened flowers is also a delightful process to observe, as it signals the arrival of warmer weather and provides an early spectacle in the garden. Despite not detailing its size, the visual impact of Rhododendron 'Hachmann's Marlis' is significant wherever it is planted, be it in beds, borders, or as a standalone specimen. It is well-suited to a range of garden styles, from woodland to formal gardens, and adds a touch of elegance and charm with its attractive features.

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Hachmann's Marlis Rhododendron, Marlis Rhododendron

    • Common names

      Rhododendron 'Hachmann's Marlis'

  • skullToxicity

    • To humans

      Rhododendron, including the 'Hachmann's Marlis' variety, is known to be poisonous to humans. All parts of the plant contain toxins, particularly andromedotoxin and grayanotoxins. If ingested, these toxins can cause symptoms such as a burning sensation in the mouth, salivation, vomiting, diarrhea, low blood pressure, cardiac complications, and potentially coma. Ingesting large quantities can be fatal, so medical attention should be sought immediately if ingestion occurs.

    • To pets

      Rhododendron is also toxic to pets, such as dogs and cats. The same toxins that affect humans, primarily andromedotoxin and grayanotoxins, are present in all parts of the plant and can cause symptoms in pets including drooling, vomiting, diarrhea, weakness, and cardiac failure. In severe cases, consumption can lead to coma or death. It is important to prevent pets from accessing and ingesting any part of a rhododendron plant, and to seek veterinary care immediately if ingestion is suspected.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      5 feet (1.52 meters)

    • Spread

      5 feet (1.52 meters)

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Attractive Blossoms: Rhododendron 'Hachmann's Marlis' produces large, vibrant flowers that can add color and aesthetic appeal to gardens and landscapes.
    • Year-Round Interest: With evergreen foliage, this Rhododendron provides greenery throughout the year, even in winter months when other plants may lose their leaves.
    • Landscape Versatility: Suitable for a variety of landscape uses, including foundation plantings, borders, and as a specimen plant for focal points.
    • Wildlife Attraction: The flowers can attract pollinators such as bees and butterflies, which are beneficial for the ecosystem.
    • Shade Tolerance: This plant can thrive in partially shaded areas where other sun-loving plants might struggle.
    • Durability: Rhododendron 'Hachmann's Marlis' is known for its resilience and can withstand various environmental conditions once established.
    • Low Maintenance: Requires minimal pruning and is relatively easy to care for, making it ideal for gardeners who prefer low-maintenance plants.

  • 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 subjects: Rhododendrons, with their vibrant blooms, are often used by photographers looking for striking natural subjects for calendars, greeting cards, and wall art.
    • Wedding decor: Due to their large, showy flowers, rhododendrons can be incorporated into wedding decorations, such as table centerpieces and floral arches.
    • Culinary decoration: Although not edible, rhododendron blooms can be used to adorn cakes and desserts for decorative purposes at high-end restaurants or events.
    • Educational tools: Rhododendrons can be used in botanical and horticultural education programs to demonstrate plant breeding and hybridization techniques.
    • Artistic inspiration: The striking appearance of rhododendrons has inspired many artists to create paintings, drawings, and even sculptures.
    • Natural insect repellent: Some people believe that rhododendron shrubs may repel certain insects, thus they are sometimes planted around outdoor seating areas.
    • Theme gardens: Rhododendrons can be the central theme of a garden, showcasing different varieties for educational or ornamental purposes.
    • Habitat creation: They provide shelter and breeding spots for various species of birds and beneficial insects in a garden ecosystem.
    • Cultural symbols: Rhododendrons can be used in cultural festivals and events as symbols of beauty and abundance, particularly in regions where they are native.
    • Film and theatre productions: The striking flowers and dense foliage of rhododendrons can be used to create vivid backdrops and scenery for film and stage.

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 are often associated with caution or warning, as some species can be poisonous if ingested.
    • Abundance: With their lush, full blooms, Rhododendrons symbolize abundance and wealth.
    • Beauty and Attraction: Their vibrant flowers are a symbol of beauty and can signify the attractiveness of a person or situation.
    • Rebirth: The plant's ability to survive harsh conditions and still bloom beautifully can represent renewal or a fresh start.
    • Solitude: In some cultures, Rhododendrons may symbolize a preference for solitude or moments of peaceful reflection.

Every 1-2 weeks
2500 - 10000 Lux
Every 2-3 years
Spring-Early Summer
As needed
  • water dropWater

    The Rhododendron, commonly known as the rhodie, should be watered deeply once a week during active growth, especially in the absence of rain, making sure the soil is moist but not waterlogged. In hotter climates, increase watering to twice a week, providing about 1 gallon of water per session to keep the soil consistently damp. During winter, reduce watering to every two to three weeks, or even less if the weather is wet. It's critical to avoid letting rhodies dry out, as they have shallow root systems that need consistent moisture. Always water at the base of the plant to keep the leaves dry and prevent fungal diseases.

  • sunLight

    Rhododendrons, including 'Hachmann's Marlis', flourish in dappled shade or partial sunlight. They should be positioned in a spot that receives morning light but is protected from the harsh afternoon sun, especially in warmer climates. An ideal location would be under the lightly shaded canopy of tall trees that provide filtered sunlight throughout the day, mimicking the rhodie's natural woodland habitat.

  • thermometerTemperature

    Rhododendrons are well-suited to temperate climates and generally prefer a temperature range between 40 to 75 degrees Fahrenheit for optimal growth. They can usually tolerate a minimum temperature just below freezing in the range of 20 to 32 degrees Fahrenheit. However, they perform best when not subjected to extreme temperature fluctuations, which can stress the plant.

  • scissorsPruning

    Prune rhododendrons to maintain shape and remove dead or diseased wood, which also helps prevent the spread of diseases. The best time for pruning is after the blooming period in late spring or early summer, as rhodies set next year's flower buds soon after the current year's blossoms fade. Light pruning annually or as needed is preferable to preserve the plant's natural form and to encourage healthy new growth.

  • broomCleaning

    As needed

  • bambooSoil

    The best soil mix for a Rhododendron 'Hachmann's Marlis', commonly known as Rhododendron, should be well-draining and acidic with a pH between 4.5 and 6.0. A mixture of 50% peat moss, 30% pine bark, and 20% perlite or coarse sand is ideal. Ensure the soil stays moist but not waterlogged to prevent root rot.

  • plantRepotting

    Rhododendrons, including Rhododendron 'Hachmann's Marlis', typically need repotting every 2 to 3 years. It's best to repot in the early spring before new growth begins, using an acidic soil mix suitable for rhododendrons and azaleas.

  • water dropsHumidity & Misting

    Rhododendron 'Hachmann's Marlis' thrives best in moderate to high humidity levels, ideally around 50-60%. This plant prefers a moist environment but can tolerate lower humidity levels if the soil moisture is maintained consistently.

  • pinSuitable locations

    • Indoor

      Provide bright indirect light, acidic soil, and maintain high humidity.

    • Outdoor

      Place in partial shade, mulch well, protect from strong winds, and ensure acidic soil.

    • Hardiness zone

      5-8 USDA

  • circleLife cycle

    Rhododendron 'Hachmann's Marlis', commonly known as Hachmann's Marlis Rhododendron, starts its life as a seed, typically germinating in a moist, well-drained, acidic soil environment with partial shade. Upon germination, it develops into a seedling with a rudimentary root system and cotyledons that provide initial nutrients. As it grows into a young plant, it develops true leaves and a more robust root system, and given proper care, it will mature over several years, during which it develops a woody structure and a fuller shrub form. Once mature, the rhododendron blooms annually, generally in the spring, producing characteristic large, colorful flowers that attract a variety of pollinators. After pollination, seeds are produced and dispersed, completing the reproductive cycle. This plant can live for many years, even decades, and with regular pruning and maintenance, it will continue to flourish and reproduce.

  • sproutPropogation

    • Propogation time

      Spring-Early Summer

    • The most popular method of propagating Rhododendron 'Hachmann's Marlis', commonly known as Rhododendron, is through semi-hardwood cuttings. This technique is generally performed during the late summer months. A cutting is taken from a healthy plant's new growth that has started to harden but is not yet fully mature. The cut should be made just below a leaf node, and leaves on the lower half of the stem should be removed. The cut end is often dipped in rooting hormone to encourage root development and then placed in a pot filled with a mixture of peat and perlite or a similar well-draining medium. The cuttings should be kept in a humid environment with indirect light, and roots typically develop within a few weeks to a few months. Once the cuttings have rooted, they can be transplanted into individual pots with standard potting soil.