Bisset's Rowan Sorbus bissetii
ABOUT
The plant known most commonly as the Bisset's rowan is a visually appealing deciduous tree that bears a striking resemblance to other members of the rowan family. During the spring season, the Bisset's rowan showcases a lush display of compound leaves, each leaf being comprised of multiple leaflets arranged in a symmetrical pattern along a central stem. The leaflets have a feather-like appearance, with serrated edges that give the foliage a textured look as they catch the light with their bright green color. As the seasons progress, the Bisset's rowan becomes even more ornamental with the emergence of clusters of delicate white flowers. These blossoms are small and arranged in dense, flat-topped clusters that create a frothy, cloud-like effect against the green backdrop of the leaves. As the flowers fade away, they are replaced by berries that add a burst of color to the canopy. The berries are typically a rich orange or red, and they hang in generous bunches that attract a variety of bird species to the tree. The bark of the Bisset's rowan is another point of interest, offering a textured surface that can add visual contrast in a garden setting. It is typically gray or silver in color and can appear slightly fissured, providing a rugged, natural charm that complements the more delicate features of the leaves and flowers. The overall shape of the tree is often upright and rounded, giving it a balanced and harmonious silhouette that finds its place in many landscape designs. Without discussing its specific dimensions, we can appreciate that the Bisset's rowan's size is suitable for it to be a prominent feature in both smaller gardens and larger landscapes.
About this plant
NamesFamily
Rosaceae
Synonyms
Bisset's Rowan, Bisset's Mountain Ash, Bisset's Whitebeam
Common names
Sorbus bissetii.
ToxicityTo humans
The common name of Sorbus bissetii is Korean Mountain Ash. There is no widely acknowledged evidence that Korean Mountain Ash is toxic to humans. However, as with many plants, individuals could potentially have allergic reactions or sensitivity to parts of the plant not commonly ingested. In general, Sorbus species are not considered to be dangerous, and some parts, such as the berries, are eaten in various cultures after proper preparation. It's important to note, however, that unripe berries or seeds from related Sorbus species may contain elements like parasorbic acid, which can cause indigestion or discomfort if ingested in large amounts. To be safe, it is recommended to avoid consumption of this plant unless properly identified and prepared.
To pets
The common name of Sorbus bissetii is Korean Mountain Ash. This plant is not widely regarded as toxic to pets such as dogs and cats. While the Korean Mountain Ash is not typically considered poisonous, individual animals might still experience a mild upset stomach if they eat parts of the plant, especially in large quantities. Seeds from related Sorbus species may contain cyanogenic glycosides, which can release cyanide when metabolized, though generally in amounts too small to cause serious harm unless consumed in large quantities. As with all non-food plants, it is a good practice to keep an eye on your pets and prevent them from consuming plants that are not part of their usual diet to avoid any potential digestive issues or allergic reactions.
CharacteristicsLife cycle
Perennials
Foliage type
Deciduous
Color of leaves
Green
Flower color
White
Height
20 feet (6 meters)
Spread
15 feet (4.5 meters)
Plant type
Tree
Hardiness zones
6
Native area
Asia
Benefits
General Benefits- Ornamental Value: Sorbus bissetii, commonly known as Bisset's rowan, adds aesthetic value to landscapes with its attractive foliage, flowers, and berries.
- Habitat for Wildlife: Provides food and shelter for birds and other wildlife, particularly with its berries which are a food source in late summer and autumn.
- Tolerance of Conditions: Bisset's rowan can grow in a variety of soil types and is relatively tolerant of urban pollution, making it suitable for city planting.
- Seasonal Interest: Offers year-round interest with its white spring blossoms, summer green leaves, autumn berry display, and winter silhouette.
- Compact Growth: It is relatively small and manageable, making it suitable for smaller gardens or spaces.
- Low Maintenance: Requires minimal pruning compared to other trees and is generally easy to care for once established.
Medical PropertiesThis plant is not used for medical purposes.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- Sorbus bissetii wood is often used in woodworking projects, such as crafting small decorative objects, due to its fine grain and workability.
- The dense wood of the Bisset's rowan can be suitable for turning on a lathe to create spindles and other detailed pieces.
- Basket weavers may use the flexible twigs of Bisset's rowan to fashion intricate and artistic baskets.
- In some cultures, the bright red berries of the Bisset's rowan are used for natural dyeing of fabrics, yielding shades of pink or red.
- The tree can be planted as a living fence or hedge, which can be pruned and shaped to serve as a property boundary or windbreak.
- The blossoms of the Bisset's rowan may be used for syrups, adding a subtle floral note to cocktails and desserts.
- The tree's ornamental value makes it a popular choice for bonsai enthusiasts who appreciate its attractive foliage and berries.
- Wood from the Bisset's rowan may be utilized in the production of musical instruments, particularly woodwind, for its acoustic properties.
- Fallen leaves of the Bisset's rowan can be collected and added to compost bins, providing a source of nutrients for garden soil.
- In landscape design, Bisset's rowan is often used for creating autumn color themes in gardens due to its vibrant fall foliage.
Interesting Facts
Feng ShuiThe Mountain Ash is not used in Feng Shui practice.
Zodiac Sign CompitabilityThe Mountain Ash is not used in astrology practice.
Plant Symbolism- Protection: Sorbus bissetii, commonly known as the Bisset's Rowan or the Bisset's Mountain Ash, is thought to symbolize protection due to the longstanding folklore that surrounds the rowan tree family. They were commonly believed to ward off evil and protect against witchcraft.
- Wisdom: As a member of the rowan tree family, the Bisset's Mountain Ash can represent wisdom and knowledge, as rowan trees are often associated with the ancient Celtic Druids who valued wisdom and insight.
- Courage: The enduring nature of the Bisset's Rowan, with its ability to grow in harsh climates and even improve the fertility of the land, symbolizes courage and the ability to thrive against the odds.
- Magic: In mythology, especially Norse and Celtic, rowan trees are seen as magical, bridging the worlds between the earth and the spiritual realm. The Bisset's Mountain Ash, as a rowan, is no exception to this symbolic association.
- Healing: Some cultures believe that the rowan tree has healing properties, and as a result, the Bisset's Rowan may symbolize health and recovery.
WaterThe Bisset's Rowan should be watered deeply once a week, depending on the climate and the soil moisture level. During the growing season, ensure it receives at least 1.5 gallons of water every week. In periods of drought or extreme heat, increase the frequency to twice a week. Cut back on watering during the winter months when the tree is dormant, aiming for 1.5 gallons every two weeks. It's important to avoid overwatering, as this can lead to root rot.
LightBisset's Rowan prefers full sun to partial shade. An ideal spot would be an area that receives direct sunlight for at least six hours a day. However, the tree can tolerate some shade, especially in the hotter parts of the day or in very warm climates.
TemperatureBisset's Rowan thrives in a temperature range of 25°F to 85°F. It can survive brief periods of colder temperatures down to about -20°F. The ideal growing conditions are in cooler to moderate climates that typically don't exceed the upper limit of its temperature range during the summer months.
PruningPruning Bisset's Rowan is essential to maintain its shape and remove any damaged or diseased limbs. Pruning should be done in late winter or early spring before new growth starts. Remove no more than 25% of the tree's branches each year. The best time for more extensive pruning is after the tree has finished flowering.
CleaningAs needed
SoilThe best soil mix for Rowan (Sorbus bissetii) should be well-drained and fertile. A mix of loam, peat, and sharp sand or grit ensures good drainage and fertility. The ideal soil pH for Rowan is slightly acidic to neutral, ranging between 5.5 and 7.0.
RepottingRowan (Sorbus bissetii) trees are typically not repotted as they are outdoor plants. However, young trees should be planted into their permanent positions within a couple of years after germination or purchase.
Humidity & MistingRowan (Sorbus bissetii) prefers outdoor conditions where humidity is naturally regulated. It is a hardy tree that does not require specific humidity levels when planted in its ideal outdoor environment.
Suitable locationsIndoor
Grow Rowan by bright window, keep cool, water when top soil dries.
Outdoor
Plant Rowan in sun to partial shade, in well-draining soil.
Hardiness zone
5-8 USDA
Life cycleSorbus bissetii, commonly known as the Bisset's Rowan, begins its life cycle as a seed that requires stratification, which is exposure to cold temperatures before it can germinate. After stratification, the seed germinates in spring and a seedling emerges, subsequently developing into a young sapling. With suitable conditions of well-drained soil and exposure to full sun or partial shade, the sapling grows into a mature tree and typically starts flowering after a few years. Flowers are white to cream in color, appearing in dense clusters, and are followed by the development of small pome fruits that are red to orange in color and are attractive to wildlife. The tree then goes into a period of dormancy during the winter months. Over many years, the Bisset's Rowan can reach up to 10-15 meters in height before it culminates its life cycle and eventually dies, at which point it may produce numerous seeds to continue the species.
PropogationPropogation time
Spring-Early Summer
Sorbus bissetii, commonly known as Bisset's rowan, is best propagated using seeds. The ideal time to collect seeds is in autumn when the berries are ripe; however, to break dormancy and increase the chances of germination, a process called stratification is required. The collected seeds must be mixed with moist sand and stored in a refrigerator for approximately 18 to 20 weeks at temperatures around 34 to 41°F (1 to 5°C). After stratification, the seeds are sown in the spring in a well-drained soil mix, covering lightly with soil. It can take several weeks for germination to occur, and once seedlings are large enough to handle, they can be transplanted into individual pots to grow on before being planted out in their permanent location.
