Rowan Sorbus aucuparia 'Sunshine'
ABOUT
The Sunshine Mountain Ash, often simply called Sunshine, is an ornamental tree that is admired for its distinctive features and seasonal interest. The foliage of Sunshine is one of its most striking features; the leaves are pinnate, which means they are composed of multiple leaflets arranged on either side of a central stem. The leaflets are lush green and turn to vibrant shades of orange, red, and yellow as they welcome the fall season, creating a fiery display that adds warmth to any landscape. In spring, the tree greets the warming weather with clusters of creamy white flowers, which are delicately scented and attract a host of pollinators. These blooms make the tree stand out against the greens of spring, and they are followed by another remarkable feature: its berries. The berries are an attractive shade of red and persist well into winter, providing a striking contrast against the barren landscape and a food source for birds. The bark of the Sunshine Mountain Ash is smooth and gray, adding to its visual interest, particularly in winter when the tree is leafless. Overall, the Sunshine Mountain Ash's appearance is characterized by its leaf type, seasonal color changes, fragrant floral display, eye-catching berries, and attractive bark. It serves as both a decorative piece and a natural benefit for wildlife, making it a favored choice for gardens and landscaping.
About this plant
- Names
Family
Rosaceae
Synonyms
European Mountain Ash, Rowan, Quickbeam
Common names
Sorbus aucuparia 'Sunshine'.
- Toxicity
To humans
The Rowan 'Sunshine' is considered to have parts that are potentially toxic to humans. While the berries are edible when cooked and are often used to make jams, jellies, and wines, they can be harmful if eaten uncooked or in large quantities. The seeds contained within the berries contain a substance known as parasorbic acid, which can convert into hydrogen cyanide when metabolized. This is a poisonous compound that can potentially cause symptoms such as nausea, vomiting, stomach cramps, diarrhea, and more severe effects like dizziness, headache, and palpitations. Ingestion of large amounts of raw berries can lead to cyanide poisoning, which is a serious condition requiring immediate medical attention. It is also advisable to handle the plant with care, as not all parts of the plant have been fully evaluated for their potential toxicity to humans when ingested.
To pets
The Rowan 'Sunshine' may present a risk of toxicity to pets if they ingest the berries or other parts of the plant. Similar to humans, the seeds inside the berries contain parasorbic acid which can convert to hydrogen cyanide in the digestive system. Consumption of the berries, particularly in large amounts, can cause symptoms of toxicity such as vomiting, diarrhea, abdominal pain, and potential cyanide poisoning. In cases of significant ingestion, pets might suffer from more serious symptoms, including breathing difficulties, lethargy, seizures, and collapse. If a pet ingests part of this plant, it is crucial to seek veterinary care immediately, as cyanide poisoning is an emergency requiring prompt treatment.
- Characteristics
Life 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
4
Native area
Europe
Benefits
- General Benefits
- Ornamental Value: Displays vibrant foliage and bright berries, enhancing the aesthetic appeal of gardens.
- Wildlife Attraction: Berries provide a food source for birds, while flowers attract bees and other pollinators.
- Shade Provider: Medium-sized tree that can offer shade in gardens and streets.
- Seasonal Interest: Offers year-round interest with flowers in spring, berries in autumn, and foliage color changes.
- Erosion Control: Root system helps to stabilize soil and prevent erosion on slopes or banks.
- Habitat Creation: Can form part of a natural habitat for various wildlife species in larger gardens or woodland areas.
- Drought Resistance: Once established, it can be relatively drought-tolerant, requiring less maintenance and watering.
- Low Maintenance: Generally requires minimal pruning and care once established.
- Adaptability: Capable of growing in a variety of soil types, though it prefers well-drained soils.
- Urban Tolerant: Can withstand urban pollution and is suitable for city planting.
- Medical Properties
This plant is not used for medical purposes.
- Air-purifying Qualities
This plant is not specifically known for air purifying qualities.
- Other Uses
- Sorbus aucuparia 'Sunshine', commonly known as the Rowan or Mountain Ash, can be used in woodworking projects; its hardwood is suitable for carving and turning, often used for creating small items like handles and bowls.
- The bright berries can be made into natural dyes for textiles, providing hues of red or orange, depending on the mordant used.
- In landscaping, Rowan can be used to create a natural privacy screen or hedge due to its dense growth habit.
- Rowan wood, being strong and dense, is sometimes used to craft musical instruments such as whistles or small pipes, offering a unique aesthetic.
- The tree's striking appearance can be utilized in ornamental plantings within urban and suburban parks to enhance visual interest throughout the seasons.
- Rowan berries can be included in homemade bird feed mixes to attract a variety of birds to gardens during the autumn and winter months.
- As a natural source of tannin, the bark of the Rowan tree can be used in the leather tanning process.
- Rowan branches and twigs can be used for rustic crafts or as part of naturalistic floral arrangements, especially in autumn-themed decorations.
- Due to their dense canopy, Rowan trees can serve as windbreaks to protect more delicate plants, crops, or land forms from harsh winds.
- The tree's early spring flowers provide an important source of nectar and pollen for early-emerging bees and other insect pollinators.
Interesting Facts
- Feng Shui
The Rowan tree is not used in Feng Shui practice.
- Zodiac Sign Compitability
The Rowan tree is not used in astrology practice.
- Plant Symbolism
- Protection: The rowan tree, which Sorbus aucuparia 'Sunshine' is a variety of, has been traditionally considered a tree that wards off evil and provides protection due to its history of being planted near homes.
- Wisdom: Associated with the druids and Celtic mythology, rowan trees are thought to enhance knowledge and wisdom.
- Life and Vitality: With its vibrant berries and hardy nature, rowan trees symbolize life and the ability to thrive in challenging conditions.
- Magical: The rowan is often referred to as the "Witchwood" and is believed to have magical properties, protecting against enchantment and spells.
- Water
For the European Rowan, also known as Mountain Ash 'Sunshine', it is crucial to ensure a consistent watering schedule. Water the tree deeply to saturate the root zone every one to two weeks, using approximately 15 to 20 gallons of water each time during dry periods. Make sure the soil has good drainage to prevent waterlogging. Adjust frequency based on rainfall; less water may be required if there is sufficient natural precipitation. During winter, reduce watering as the tree requires less moisture due to slower growth.
- Light
European Rowan 'Sunshine' thrives best in full sun to partial shade. The ideal spot for this tree would be an area where it receives at least six hours of direct sunlight per day. It is adaptable but will produce the best fruiting and most vibrant fall color when planted in an open location that is not overly shaded.
- Temperature
The European Rowan 'Sunshine' prefers cooler climates and is hardy in a range of temperatures. It can withstand winter temperatures down to -20°F and is comfortable in summer temperatures up to 85°F. The ideal temperature for this tree is between 50°F and 70°F, where it can grow and thrive without stress.
- Pruning
Prune the European Rowan 'Sunshine' to remove dead or diseased branches, shape the tree, and encourage healthy growth. The best time to prune is in late winter to early spring before new growth starts. Prune sparingly, never removing more than a third of the tree's branches in a given year.
- Cleaning
As needed
- Soil
The European Rowan 'Sunshine' thrives in well-drained, loamy soil enriched with organic matter. A slightly acidic to neutral pH of 5.5 to 7.0 is ideal for the European Rowan.
- Repotting
European Rowan 'Sunshine' is not commonly repotted as it is a tree; rather, it is planted directly into the ground or moved to a larger space if necessary in its early years.
- Humidity & Misting
The European Rowan 'Sunshine' is quite adaptable but prefers a moderate humidity level, typical of its natural outdoor environment.
- Suitable locations
Indoor
Not suitable for indoor growth; it's a tree.
Outdoor
Plant in well-drained, fertile soil; full sun.
Hardiness zone
The European Rowan 'Sunshine' is suitable for USDA zones 3-7.
- Life cycle
The common name of Sorbus aucuparia 'Sunshine' is Rowan or Mountain Ash. The life cycle begins with seed germination, where under favorable conditions, the seed sprouts and develops into a seedling. As the seedling grows, it enters the vegetative stage where it forms a strong root system and foliage, eventually maturing into a sapling. During the reproductive stage, the Rowan tree flowers, typically in spring, producing clusters of white blossoms that are pollinated by insects, leading to the formation of bright red berries. These berries contain seeds, which are dispersed by birds and other animals, perpetuating the cycle. In the final stage of its life, the tree reaches senescence, where growth slows down and, after many years, it will eventually die, decompose, and return nutrients to the soil.
- Propogation
Propogation time
Late Winter-early Spring
Sorbus aucuparia 'Sunshine', more commonly known as Rowan or Mountain Ash 'Sunshine', propagates well through seed. However, the most popular method for this cultivar is by grafting. This process involves taking a scion, which is a young shoot or twig from the 'Sunshine' variety, and attaching it to the rootstock of a common Sorbus aucuparia. Grafting is usually done in late winter or early spring when the plant is dormant. The scion should be around 6-8 inches (15-20 cm) in length and have several buds. It's important to make clean cuts and to align the scion with the rootstock so the cambium (growth) layers match up. The graft joint is then wrapped and sealed to prevent drying and disease entry, and kept under appropriate temperature and humidity until the graft union has healed and the new plant begins to grow.