Magnolia 'Koban Dori' Magnolia acuminata 'Koban Dori'

👤 Non-toxic to humans
🐾 Non-toxic to pets
🌸 Blooming
🍪 Not edible
‍🌱 Hard-care
magnolia 'Koban Dori'


'Koban Dori' is a deciduous tree to 7m tall, with elliptic leaves to 25cm long and upright, cup-shaped, light yellow flowers 9cm long opening with the leaves in late spring and early summer

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Cucumber Tree, Yellow Cucumber Magnolia, Koban Dori Magnolia

    • Common names

      Magnolia acuminata 'Koban Dori'.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      20-30 ft (6-9 m)

    • Spread

      20-30 ft (6-9 m)

    • Plant type


    • Hardiness zones


    • Native area

      North America


  • money-bagGeneral Benefits

    • Landscape Aesthetics: The Magnolia acuminata, commonly known as the Cucumber Tree, is known for its beauty, with showy yellow-green flowers that add aesthetic value to landscapes.
    • Shade Provision: The large, broad leaves and dense canopy provide significant shade, making it an excellent choice for parks and large gardens.
    • Wildlife Attraction: The Cucumber Tree's flowers, seeds, and overall structure can attract various forms of wildlife, including birds, squirrels, and pollinators like bees.
    • Seasonal Interest: It offers year-round interest with flowers in spring, lush green foliage in summer, and variable autumn leaf coloration.
    • Low Maintenance: Once established, this tree requires minimal care, making it a low-maintenance option for landscapers and gardeners.
    • Native Species Support: As a native species, planting the Cucumber Tree supports local ecosystems and biodiversity.

  • 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

    • The wood of Cucumber Tree can be used in fine woodworking or cabinetry due to its hardness and workability.
    • Its fruit, resembling cucumbers, can be used as a unique ornamental element in craft or decoration.
    • Landscape architects may use Cucumber Tree for large garden or park designs thanks to its impressive size and attractive shape.
    • Dried leaves of the plant can be incorporated into potpourri mixes for a natural aroma and rustic look.
    • The bark of Cucumber Tree can be utilized in the creation of nature-inspired textures and patterns in art projects.
    • The dense foliage offers a natural canopy and can be used to create shaded areas in gardens or during outdoor events.
    • Seed pods can be collected and used as educational tools to study the life cycle of magnolias and seed dispersal methods.
    • Cucumber Tree's large flowers can serve as natural dye sources for fabrics or paper, creating subtle color variations.
    • The tree can be planted as a sound barrier due to its thick foliage, helping to reduce noise pollution.
    • Enthusiasts of bonsai may cultivate the Cucumber Tree as a large bonsai specimen for a stunning and unique display.

Interesting Facts

  • bedFeng Shui

    The Cucumber Tree is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    The Cucumber Tree is not used in astrology practice.

  • spiralPlant Symbolism

    • Nobility: Magnolias are often associated with nobility due to their impressive stature and large, showy flowers.
    • Dignity: The magnificence and enduring nature of the blooms represent dignity and self-respect.
    • Persistence: Capable of living for a long time, magnolias symbolize perseverance and tenacity.
    • Feminine beauty: The delicate and elegant appearance of the flowers makes them a symbol of feminine beauty and gentleness.
    • Purity: With their white to creamy petal colors, magnolias are often connected to purity and innocence.

Every 7-10 days
2500 - 10000 Lux
Every 2-3 years
Spring-Early Summer
As needed
  • water dropWater

    The Cucumber Tree Magnolia should be watered thoroughly, allowing the soil to dry slightly between watering sessions. During the growing season, water the tree once or twice a week depending on the weather conditions. A newly planted Cucumber Tree may require about 1 to 1.5 gallons per week, gradually increasing the amount to 5 gallons as the tree matures and the root system expands. During hot, dry periods, water requirements may increase, and additional water should be provided to maintain soil moisture and prevent stress. During the dormant season, decrease the frequency of watering to reflect lower temperature and moisture needs.

  • sunLight

    The Cucumber Tree Magnolia thrives in full sun to partial shade. The ideal spot for this magnolia would be a location where it can receive at least 4 to 6 hours of direct sunlight per day. While it can tolerate some shade, too much can lead to fewer blooms and a less vigorous plant.

  • thermometerTemperature

    The Cucumber Tree Magnolia prefers temperate climates and is hardy in a range from about -20 to 95 degrees Fahrenheit. It can survive short periods of colder winter temperatures down to approximately -30 degrees Fahrenheit, but for optimal growth, it should not be exposed to extreme cold for extended periods. Ideally, the Cucumber Tree Magnolia should be planted in areas where temperatures are within the optimum range for the majority of the year.

  • scissorsPruning

    Prune the Cucumber Tree Magnolia to maintain its shape and health, and to remove any dead or diseased wood. The best time to prune is late winter or early spring before new growth starts, generally once per year. Light pruning can also be done after flowering to shape the tree or reduce its size, but heavy pruning should be avoided as it can reduce flowering.

  • broomCleaning

    As needed

  • bambooSoil

    Cucumber Tree (Magnolia acuminata 'Koban Dori') thrives in a soil mix that is rich, well-draining, and slightly acidic to neutral (pH 5.5 to 7.0). A mix of loamy soil, peat moss, and coarse sand or perlite is ideal to ensure proper drainage and nutrient retention. Regularly replenish organic matter to maintain soil fertility.

  • plantRepotting

    The Cucumber Tree should be repotted every 2-3 years, or when it becomes root-bound. Spring is the best time for repotting to allow the tree to establish in the growing season.

  • water dropsHumidity & Misting

    Cucumber Tree prefers moderate to high humidity levels. Strive for a humidity range between 50% and 70% to support its growth and health.

  • pinSuitable locations

    • Indoor

      Place in bright, indirect light, ensure space for growth.

    • Outdoor

      Plant in well-drained soil, sunlight to partial shade.

    • Hardiness zone

      4-8 USDA

  • circleLife cycle

    Magnolia acuminata 'Koban Dori', commonly known as the Cucumber Tree, begins its life as a seed, which upon germinating in suitable soil and environmental conditions, develops a root system and a shoot that pushes through the soil surface. As a seedling, it establishes itself through a juvenile phase, characterized by rapid growth and foliage development. The tree then enters a vegetative stage, where it expands in height and girth, producing broad, deciduous leaves that enable photosynthesis to fuel further growth. After several years, it matures and enters the reproductive phase, characterized by the development of distinctive yellow-green blossoms that are pollinated by insects, leading to the production of cylindrical red fruit resembling cucumbers. Following pollination and fruit set, seeds are dispersed—often by birds or gravity—completing the reproductive cycle. The Cucumber Tree can live for many years, and as it reaches old age, growth slows, and it may become more susceptible to environmental stresses and diseases, eventually leading to death and decomposition, which returns nutrients to the soil.

  • sproutPropogation

    • Propogation time

      Spring-Early Summer

    • The Magnolia acuminata 'Koban Dori', commonly known as the Cucumber Magnolia, is typically best propagated during the dormant season, particularly in late winter or early spring before new growth begins. The most popular method of propagation for this cultivar is through softwood cuttings. To propagate by cuttings, one must select healthy young branches and cut segments around 6 to 8 inches (approximately 15 to 20 centimeters) long, ensuring that each cutting has at least two to three nodes. The lower leaves are removed, and the cut end is often treated with a rooting hormone to encourage root development. The prepared cuttings are then inserted into a moist, well-draining rooting medium such as a mix of peat and perlite. These are kept under high humidity and indirect light until roots have developed, which typically takes several weeks. Once rooted, the young Magnolias can be potted up separately and gradually acclimatized to outdoor conditions before planting them in their permanent locations.