Silvan Blackberry Rubus 'Silvan' (F)

👤 Non-toxic to humans
🐾 Non-toxic to pets
🌸 Not blooming
🍪 Edible
‍🌱 Easy-care


The Rubus 'Silvan', also known as the Silvan blackberry, is a woody fruit-bearing plant. It features strong, arching canes that typically bear thorns. The foliage consists of green leaves that are compound with multiple leaflets, usually with toothed margins. These leaves can provide a lush, dense background for its notable fruit. During the flowering season, the plant produces clusters of white or pale pink flowers. Each flower has five petals, with the blooms being appealing to bees and other pollinators. As for the fruit, the Silvan blackberry is known for its large, plump berries that are typically a deep blackish-purple when ripe. The berries are arranged in clusters and are succulent with a sweet, slightly tart flavor that makes them popular for fresh eating, jams, and desserts. The fruit's surface texture is drupelet, meaning it is composed of smaller individual seed-containing units that are bunched closely together, giving the berry its characteristic appearance. Overall, the plant is lush and can be used not only for its fruit but also as a natural barrier or landscape feature due to its robust nature.

Plant Info
Common Problems

About this plant

  • memoNames

    • Synonyms

      Silvan Blackberry, Boysenberry, Brambleberry

    • Common names

      Rubus 'Silvan' (F).

  • skullToxicity

    • To humans

      The Rubus 'Silvan', commonly known as the blackberry plant, is generally not toxic to humans. In fact, the fruit of the blackberry plant is edible and widely consumed. However, like with any plant, individual allergic reactions can occur, so it's advisable to consume with care if you're trying them for the first time or have known sensitivities.

    • To pets

      The Rubus 'Silvan', commonly known as the blackberry plant, is not considered toxic to pets. The fruit of this plant is often safe for pets to consume in moderation. However, as with humans, individual pets may have differing sensitivities, and the plant's thorns can cause physical injury if a pet tries to eat the brambles or foliage. Always monitor your pets around plants and consult with a veterinarian if any adverse reactions occur.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      5-6 feet (1.5-1.8 meters)

    • Spread

      4-5 feet (1.2-1.5 meters)

    • Plant type


    • Hardiness zones


    • Native area



  • money-bagGeneral Benefits

    • Produces Edible Fruits: Rubus 'Silvan', commonly known as Blackberry, provides an abundant crop of edible berries that are delicious and can be used in a variety of culinary dishes.
    • Attracts Wildlife: The flowers and fruits attract bees, butterflies, and birds, promoting biodiversity in the garden.
    • Erosion Control: The dense growth habit of Blackberry plants can help stabilize soil and prevent erosion on slopes.
    • Aesthetic Appeal: Blackberry plants have attractive white or pink flowers in the spring and deep purple-black fruits that can enrich the visual appeal of the landscape.
    • Durable and Hardy: Blackberry plants are known for their hardiness and can thrive in a range of soils and climates.
    • Easy to Grow: Blackberries are relatively low-maintenance, making them suitable for both novice and experienced gardeners.
    • Can Provide Shade: The dense foliage of mature Blackberry bushes can offer shade for smaller plants or garden areas.
    • Habitat Enrichment: By forming thickets, Blackberry plants can provide shelter and nesting sites for wildlife.
    • Privacy Screening: Rapid growth and dense branching make Blackberries ideal for use as natural privacy screens or hedges.

  • 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

    • Rubus 'Silvan', commonly known as blackberry, can be used as a natural dye, providing shades of purple and blue.
    • Blackberry thorns can be fashioned into natural makeshift needles for emergency repairs of fabrics when no tools are available.
    • The strong fibrous stems of blackberry plants can be woven to create rough baskets or simple garden structures.
    • Crushed blackberry leaves release a pleasant fragrance and can be placed in sachets as a natural air freshener.
    • The berries can be used as bait for fishing, with their sweet scent attracting certain types of fish.
    • Blackberry branches can be used as barriers or informal fencing around a garden due to their thorny nature, deterring small animals.
    • When properly treated, blackberry canes can be used as plant stakes to support other plants in the garden.
    • The mashed blackberry fruit can serve as a natural ink for writing or creating art, although it may not be very permanent.
    • Dried blackberry leaves can be incorporated into homemade potpourri for a natural, fruity aroma.
    • During winter, the dense thickets of blackberry bushes can provide shelter and habitat for small birds and wildlife.

Interesting Facts

  • bedFeng Shui

    The Blackberry is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    The Blackberry is not used in astrology practice.

  • spiralPlant Symbolism

    • Resilience: As a bramble plant, blackberries, including Rubus 'Silvan', often symbolize resilience as they can thrive in harsh conditions and are known to recover well after disturbances.
    • Fertility and Abundance: The prolific nature of the blackberry plant, with its abundant fruit, is often seen as a symbol of fertility and plenty.
    • Protection: In folklore, brambles such as blackberries were thought to ward off evil spirits, and their thorny thickets offer physical protection in nature, symbolizing safeguarding and boundaries.
    • Regeneration: Associated with the persistent growth and ability to propagate from cuttings or damaged stems, blackberries can represent healing and regeneration.

Every 1-2 weeks
2500 - 10000 Lux
Every 2-3 years
Late winter to early spring
As needed
  • water dropWater

    The blackberry (Rubus 'Silvan' F) should be watered deeply to ensure moisture reaches the root zone, about 1 inch of water per week either from rainfall or supplemental watering. During the growing season, it is important to keep the soil consistently moist but not waterlogged. It's best to water in the early morning to reduce evaporation and allow foliage to dry out, minimizing the risk of fungal diseases. In the absence of rain, water the plants once or twice a week with approximately 2 to 3 gallons per plant depending on the soil type and weather conditions. Reduce watering in the winter when the plant is dormant.

  • sunLight

    Blackberries, including Rubus 'Silvan' (F), thrive in full sun, receiving at least 6 to 8 hours of direct sunlight daily. The best spot for planting blackberries is an open location where they are not shaded by trees or buildings. Adequate light is crucial for fruit production and overall plant health.

  • thermometerTemperature

    Blackberries, like Rubus 'Silvan' (F), grow best in temperatures between 70°F and 85°F. They can survive winter chill down to about 0°F, but the roots should be protected from prolonged freezing temperatures. At temperatures above 90°F, the plants may show signs of heat stress, so it's important to ensure they have adequate water during hot spells.

  • scissorsPruning

    Pruning blackberries like Rubus 'Silvan' (F) is important for maintaining vigorous growth and high fruit quality. Remove any dead or diseased canes anytime they are noticed and prune in late winter or early spring before new growth begins. Remove the canes that have fruited immediately after harvesting, as blackberries fruit on second-year canes. Prune annually for best results.

  • broomCleaning

    As needed

  • bambooSoil

    Blackberry 'Silvan' thrives in well-draining, fertile soil with a pH of 5.5 to 6.5. A mix of loam, compost, and aged manure creates an ideal environment. Add peat moss to adjust acidity if necessary.

  • plantRepotting

    Blackberry 'Silvan' plants, being perennial, typically don't need repotting. They prefer being planted directly in the garden where they can spread.

  • water dropsHumidity & Misting

    Blackberry 'Silvan' is adaptable but favors moderate humidity levels. Avoid excessively damp conditions to prevent fungal diseases.

  • pinSuitable locations

    • Indoor

      Not ideal indoors, requires full sun and space to spread.

    • Outdoor

      Plant in full sun, give room to grow, and support canes.

    • Hardiness zone

      4-9 USDA

  • circleLife cycle

    The Silvan Blackberry begins its life cycle as a seed, usually resulting from the pollination of flowers from the previous growing season. Upon germination in early spring, the seed develops into a seedling with a primary root that will eventually become a perennial rootstock. The plant then enters a vegetative stage, producing canes that grow for one year before entering dormancy in the winter. In the second year, these canes, now termed floricanes, flower in late spring to early summer and, with pollination, produce fruit which ripens in mid to late summer. After fruiting, the floricanes die back while new canes (primocanes) grow from the rootstock to bear fruit in the following year. At the end of its productive life span, which can last several years, the plant slowly declines and eventually dies, leaving seeds to continue the cycle.

  • sproutPropogation

    • Propogation time

      Late winter to early spring

    • The Rubus 'Silvan', commonly known as the blackberry, is predominantly propagated through the method of tip rooting, which takes place in the late fall or early spring. To propagate blackberries via tip rooting, a healthy tip of a blackberry cane is bent to the ground and covered with a small amount of soil, ensuring that the end of the tip is positioned upward. In a few weeks to months, the buried tip will develop its own root system while still attached to the parent plant. When the new roots are well established, usually by the next growing season, the rooted tip can be severed from the parent plant and transplanted to a new location. This method utilizes the natural ability of blackberry canes to root from the tips when they contact the soil, making it an effective and relatively simple way to propagate the plant.