Saskatoon Berry Amelanchier alnifolia 'Obelisk' (PBR)
ABOUT
The Amelanchier alnifolia 'Obelisk', commonly known as the Saskatoon berry, is a slender, upright-growing shrub that presents a columnar shape, which is somewhat unusual for fruit-bearing plants. It is adorned with small, oval-shaped leaves that are typically bright green in color, providing a lush appearance throughout the growing season. These leaves can transform into striking shades of orange and red, offering a vivid autumn display. In spring, the Saskatoon berry graces gardens with an abundance of delicate white flowers that blossom in attractive clusters, making it a popular choice for ornamental purposes as well as for its fruit. The flowers not only add ornamental value but also attract beneficial pollinators to the garden. Following the flowering period, the plant produces small, round fruits that are a deep purple-black when ripe. The berries are not only edible but are known for their sweet, nutty flavor, and are favored in various culinary applications including pies, jams, and jellies. Overall, the plant's striking vertical habit, lush foliage, spring blossoms, and vibrant autumn colors, coupled with its sweet, edible berries, make the Saskatoon berry 'Obelisk' a desirable addition to both ornamental and edible landscapes.
About this plant
- Names
Family
Rosaceae
Synonyms
Saskatoon Berry, Serviceberry, Juneberry, Shadbush, Indian Pear, Pacific Serviceberry, Western Serviceberry, Alder-leaf Shadbush
Common names
Amelanchier alnifolia 'Obelisk' (PBR)
- Toxicity
To humans
Serviceberry is generally not considered toxic to humans. In fact, the berries of serviceberry are edible and can be consumed raw or used in cooking. There is no well-documented toxicity associated with the ingestion of any part of the serviceberry plant, and it is commonly grown for its edible fruit.
To pets
Serviceberry is not known to be toxic to pets either. The berries and other parts of the plant are not typically associated with poisoning in domestic animals like dogs and cats. As with any non-typical food items, pets may experience gastrointestinal upset if they consume large amounts of serviceberry fruit or plant material, but there is no specific toxicity associated with this plant.
- Characteristics
Life cycle
Perennials
Foliage type
Deciduous
Color of leaves
Green
Flower color
White
Height
15 feet (4.5 meters)
Spread
2 feet (0.6 meter)
Plant type
Shrub
Hardiness zones
4
Native area
North America
Benefits
- General Benefits
- Compact Growth: 'Obelisk' is ideal for small gardens due to its narrow, upright growth habit.
- Ornamental Appeal: Produces beautiful white blossoms in the spring, adding aesthetic value to the landscape.
- Edible Fruit: Bears edible berries that are tasty and can be used in jams and jellies.
- Wildlife Attraction: The berries attract birds and other wildlife, supporting local biodiversity.
- Adaptability: It is adaptable to a range of soils, including clay and loam, and can tolerate different moisture levels.
- Low Maintenance: Requires minimal pruning and care once established, making it a good choice for low-maintenance landscaping.
- Four-Season Interest: Offers year-round visual interest with flowers in spring, fruit in summer, colorful foliage in autumn, and a striking form in winter.
- Drought Tolerance: Once established, it has good drought tolerance, reducing the need for frequent watering.
- Cold Hardy: It is hardy in cold climates, making it suitable for northern gardeners.
- Non-Invasive: Unlike some ornamental plants, 'Obelisk' is non-invasive, preventing issues with unwanted spread.
- 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
- The young stems of the Saskatoon berry can be used to craft small, decorative items such as wreaths and dried flower arrangements.
- Due to its narrow, upright growth habit, Saskatoon berry can function as a natural privacy screen when planted in tight spaces or along property lines.
- The tree's bright fall foliage can be used as a natural dye for fabrics, yielding colors that range from yellow to orange depending on the mordant used.
- Woodworkers may use the hard, dense wood of the Saskatoon berry to make small wooden objects, such as handles for tools and kitchen utensils.
- The plant's durable wood is suitable for creating stakes and supports for garden plants, as it is naturally rot-resistant.
- Saskatoon berries can be infused in vinegars or oils, providing a unique, fruity flavor for culinary uses and salad dressings.
- Its fibrous roots can be utilized for introductory lessons in plant biology or horticulture due to the plant's hardiness and fast growth.
- In the past, the bark and branches may have been used in traditional smoking ceremonies by indigenous peoples to create aromatic and purifying smoke.
- The dense foliage and branching pattern make the Saskatoon berry an excellent habitat for birds, beneficial insects, and other wildlife to nest or seek shelter.
- During winter, the distinctive branching structure provides visual interest in a snow-covered garden, often being used to create a 'winter interest' landscape design element.
Interesting Facts
- Feng Shui
The Serviceberry is not used in Feng Shui practice.
- Zodiac Sign Compitability
The Serviceberry is not used in astrology practice.
- Plant Symbolism
- Renewal and New Beginnings: As a plant that blossoms in spring, Serviceberry is often associated with new starts and the refreshing presence of a new cycle in nature.
- Protection and Safety: Native Americans used parts of the Serviceberry tree to make arrows and for medicinal purposes, which symbolize the plant's role in offering protection and safety.
- Peace and Calm: The delicate white flowers of the Serviceberry promote a feeling of peace and calm, representing tranquility and purity in various cultures.
- Adaptability: Capable of growing in different soil conditions, the Serviceberry showcases adaptability to life's varying circumstances.
- Balance and Harmony: The Serviceberry's need for sun and partial shade reflects the balance in nature and emphasizes the importance of harmony in life.
- Water
The Serviceberry 'Obelisk' requires consistent moisture, especially during the first growing season to establish a deep, extensive root system. After establishment, regular watering is still important, but the frequency can be reduced. Water the plant deeply, allowing the soil to be moist but never waterlogged. Typically, applying 1 to 1.5 inches of water once a week during the growing season is sufficient, but this may vary based on climate conditions. During periods of drought or extreme heat, you may need to water twice a week.
- Light
Serviceberry 'Obelisk' thrives best in full sun to partial shade. A location with at least 6 hours of direct sunlight is ideal for optimal flowering and fruiting, but the plant can also tolerate light shade, especially in hotter climates. Ensure the selected spot allows ample sunlight for healthy growth and development.
- Temperature
The Serviceberry 'Obelisk' is adaptable to a wide range of temperatures and can survive a maximum temperature of about 90°F and a minimum winter temperature of around -40°F. However, it flourishes in temperate climates, and the ideal growing conditions range from 60°F to 75°F. It is a cold-hardy plant, which makes it suitable for many temperate regions.
- Pruning
Serviceberry 'Obelisk' should be pruned to maintain its narrow, upright shape and to remove any damaged or diseased branches. It's best to prune in late winter or early spring before new growth starts. Pruning can be done annually, but mature plants may only require pruning every other year. Thinning out crowded branches in the canopy will also allow light and air to penetrate the plant, promoting healthier growth.
- Cleaning
As needed
- Soil
Serviceberry 'Obelisk' thrives in well-draining, loamy soil enriched with organic matter. A blend of two parts garden loam, one part peat or compost, and one part sand or perlite is ideal. The soil pH should be slightly acidic to neutral, ranging between 6.0 to 7.5.
- Repotting
Serviceberry 'Obelisk', being a small tree or shrub, is not commonly repotted as it is usually planted directly in the ground. If grown in a container, repotting may be done every 2-3 years to refresh the soil and provide more room for growth.
- Humidity & Misting
Serviceberry 'Obelisk' is adaptable to a range of humidity levels and does not require specific humidity conditions. It is generally tolerant of the humidity levels found in most outdoor environments where it is hardy.
- Suitable locations
Indoor
Serviceberry 'Obelisk' is less suitable for indoor growing due to size.
Outdoor
Plant in full sun to partial shade and moist, well-draining soil.
Hardiness zone
4-9 USDA
- Life cycle
Saskatoon berry, Amelanchier alnifolia 'Obelisk' (PBR), begins its life cycle with seed germination, typically occurring in spring when soil temperatures warm. Following germination, it enters a phase of vegetative growth, developing a strong root system and a columnar growth habit. In early maturity, during spring, the plant produces white, showy flowers which are critical for pollination and subsequent fruit development. Following pollination, the flowers develop into small, dark purple berries by mid-summer, which are edible and attract wildlife. After fruiting, the plant focuses on energy storage and strengthening in preparation for dormancy during the cold season. The Saskatoon berry can live for several decades, with each year repeating the cycle of flowering, fruiting, and dormancy.
- Propogation
Propogation time
Spring-Early Summer
The Amelanchier alnifolia 'Obelisk', commonly known as the Serviceberry 'Obelisk', is often propagated by softwood cuttings. The best time to take these cuttings is in late spring or early summer, when the new growth is just beginning to harden but is still flexible. To propagate by cuttings, one should cut a section of the stem that is 4 to 6 inches long, making sure it has several leaves. The lower leaves are removed, and the cut end is dipped in rooting hormone before being planted in a mixture of peat and perlite. The cutting should be kept moist and placed in indirect light until roots have developed, which can take several weeks. Once rooted, the plant can be potted up and eventually transferred to its permanent location.