Mountain ash 'Eastern Promise' Sorbus 'Eastern Promise'

☠ Toxic to humans
🐾 Toxic to pets
🌸 Blooming
🍪 Edible
‍🌱 Easy-care
mountain ash 'Eastern Promise'


'Eastern Promise' is a small deciduous tree with an oval crown, with pinnate leaves that turn pruple and orange-red in autumn, and clusters of small white flowers followed by rose-pink berries in autumn

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Eastern Promise Rowan, Eastern Promise Mountain Ash

    • Common names

      Sorbus 'Eastern Promise'.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      20 feet (6 meters)

    • Spread

      15 feet (4.5 meters)

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Ornamental Value: Sorbus 'Eastern Promise' is known for its striking autumn colors and beautiful berries, adding aesthetic value to gardens.
    • Wildlife Attraction: The berries produced by the tree are a food source for birds, making it a great plant for supporting local wildlife.
    • Shade Offering: As a deciduous tree, it can provide shade in the summer months, enhancing outdoor living spaces.
    • Seasonal Interest: It offers year-round interest with flowers in the spring, berries in the autumn, and structure in the winter after the leaves have fallen.
    • Urban Tolerant: Sorbus 'Eastern Promise' is relatively tolerant of urban pollution, making it suitable for city gardens or streetscapes.
    • Compact Size: Being a smaller tree, it fits well in smaller gardens without overwhelming the space.
    • Low Maintenance: Once established, it requires minimal maintenance, suitable for gardeners who prefer lower upkeep plants.
    • Drought Resistance: It is relatively drought-tolerant once established, reducing the need for frequent watering.
    • Adaptable: The tree can adapt to a range of soil types, provided the soil is well-drained.

  • 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 berries of the Eastern Promise can be used to make natural dyes for fabrics, offering a range of colors from pinks to oranges depending on the mordant used.
    • Branches and the fine-textured foliage can be incorporated into floral arrangements for a rustic or woodland-themed decor.
    • The wood of the Eastern Promise is sometimes used for crafting small wooden objects such as handles for tools or walking sticks, given its hardness and durability.
    • With its compact form and ornamental berries, this tree can be used in bonsai cultivation for enthusiasts looking for unique species to shape and grow.
    • The tree can serve as a host plant for various species of birds, providing them shelter and a nutritious source of food during the winter months.
    • In landscape design, it can be used as a natural screen or hedge, especially in residential areas where privacy is desired without the use of traditional fencing.
    • When dried, the leaves and small branches can be used as a component in creating natural potpourris, imparting a subtle woody scent.
    • Eastern Promise can be adopted as a teaching tool in educational programs about lifecycle and seasonal changes of native trees.
    • The dense branching pattern provides a natural support for climbing plants in the garden, especially when strategically planted in proximity.
    • Fallen leaves from the tree can be collected and used as mulch, adding nutrients back to the soil and helping retain moisture.

Interesting Facts

  • bedFeng Shui

    The Rowan tree is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    The Rowan tree is not used in astrology practice.

  • spiralPlant Symbolism

    • Protection: The rowan tree, which Sorbus 'Eastern Promise' is a cultivar of, has traditionally been seen as a tree that wards off evil and provides protection, a belief that stems from ancient folklore.
    • Wisdom: Rowan trees are often associated with wisdom and knowledge, possibly due to their longevity and the Druidic belief that they could enhance understanding and insight.
    • Balance: With its berries symbolizing the balance of energies, Sorbus 'Eastern Promise' reflects the equilibrium between the vibrant life in spring and summer, and the dormant period during winter.
    • Strength and endurance: A rowan's ability to grow in harsh conditions is symbolic of strength and the capacity to persevere through adversity.
    • Healing: The berries of the rowan tree were once used in traditional medicine, so the tree can also represent healing and health.
    • Magic: In mythology, rowan trees are often associated with magic and mysticism, providing a connection to the mystical aspects of life.

Every 1-2 weeks
2500 - 10000 Lux
Not needed
Late winter-early spring
As needed
  • water dropWater

    The Rowan or Mountain Ash tree, specifically the 'Eastern Promise' variety, should be watered deeply once a week, ensuring that the soil becomes moist but not waterlogged. During the growing season, especially in dry spells, you might need to water more frequently, perhaps increasing to twice a week. Each time, aim to provide about 15 to 20 gallons of water, which should suffice to reach the tree's root system. If you've just planted your Rowan, you'll need to water it every few days to help establish it, gradually reducing frequency as it becomes more established. In the winter, you can reduce watering since the tree will be dormant and the soil retains moisture longer due to lower evaporation rates.

  • sunLight

    Rowan trees, including 'Eastern Promise', thrive best in full sunlight to partial shade. They require a minimum of 4 to 6 hours of direct sunlight daily. For optimal growth and fruit production, place your Rowan in a spot where it will receive ample morning light and some afternoon shade, especially in hotter climates, to protect it from intense heat.

  • thermometerTemperature

    The Rowan tree fares well in a range of temperatures and is quite hardy, able to withstand winter lows down to -20°F and summer highs up to 85°F. The ideal temperature range for 'Eastern Promise' is between 60°F and 70°F. These trees are suited for USDA Hardiness Zones 4 through 7, ensuring they can survive the seasonal climate variations within these zones.

  • scissorsPruning

    Prune the Rowan 'Eastern Promise' to remove dead or damaged branches and to shape the tree in late winter or early spring before new growth starts. Pruning helps to maintain tree health by removing wood that can harbor diseases or pests. It also improves air circulation and light penetration to the interior of the canopy. The frequency of pruning will depend on the tree's growth rate and shape, but it is generally done annually or as needed to maintain the desired form and health of the tree.

  • broomCleaning

    As needed

  • bambooSoil

    The best soil mix for the Rowan or Mountain Ash is one that is well-draining and loamy with a pH range of 5.5 to 6.5. Incorporating organic matter such as compost or leaf mold can enhance soil fertility and structure, providing optimal conditions for the tree's growth.

  • plantRepotting

    Rowan trees, including the 'Eastern Promise' variety, are not typically grown in containers and therefore do not require repotting. These trees are best suited for planting directly in the ground.

  • water dropsHumidity & Misting

    The Rowan or Mountain Ash tree, including the 'Eastern Promise' cultivar, is adaptable to a wide range of humidity conditions and does not require specific humidity levels when planted outdoors in its preferred climate zones.

  • pinSuitable locations

    • Indoor

      Not advised for indoors; requires full sun, adequate space.

    • Outdoor

      Full sun, well-drained soil, space to accommodate growth.

    • Hardiness zone

      4-7 USDA

  • circleLife cycle

    The Rowan or Mountain Ash 'Eastern Promise' begins its life cycle with seed germination, which requires stratification, a process of cold treatment to break dormancy. Once germinated, the seedling emerges and establishes itself, growing into a young sapling with characteristic pinnate leaves. As the sapling matures, it develops into a tree with a sturdy trunk and a branching canopy, flowering typically after a few years. The flowers are hermaphroditic, creamy white, and arranged in dense clusters, leading to pollination by insects. Following pollination, bright orange or red berries called pomes ripen, providing food for birds and resulting in seed dispersal. Finally, after many years, the tree reaches the senescence stage, where growth slows and the plant eventually dies, completing its life cycle.

  • sproutPropogation

    • Propogation time

      Late winter-early spring

    • The Sorbus 'Eastern Promise', commonly known as the Eastern Promise Rowan, is typically propagated by seed or less commonly by cuttings. The most popular method of propagation for the Eastern Promise Rowan is by seed. Seeds are best sown in the fall, immediately after harvest, to allow for natural stratification through the winter months. To successfully propagate by seed, one must first collect the berries, then extract the seeds by macerating the berries and washing them in water. The clean seeds can then be sown about 1/2 inch deep into a well-draining seed starting mix. It is crucial to keep the soil moist but not waterlogged as the seeds require consistent moisture to germinate. Seedlings usually emerge in the spring and can be transplanted into individual pots when they are large enough to handle.