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PlantSnap
Plant Care
Elmleaf blackberry
(Rubus ulmifolius)
Also Known As
Elmleaf blackberry, European bramble, Blackberry, Wild blackberry, Thorny blackberry
About This Plant
Rubus ulmifolius is a species of flowering plant in the rose family, known by the common name elmleaf blackberry. It is native to Europe and western Asia.
Plant Care Instructions
Outdoor Size Range
Height: 5-10 feet (1.5-3 meters); Spread: 6-12 feet (1.8-3.7 meters)
Light Requirements
Rubus ulmifolius thrives in full sun to partial shade. It prefers a minimum of 6 hours of direct sunlight per day.
Humidity Needs
This plant species prefers moderate to high humidity levels, around 50-70%. Use a humidifier or place a tray filled with water near the plant to increase humidity levels.
Fertilizing Schedule
Fertilize the plant once a month during the growing season with a balanced fertilizer. Use a fertilizer with a higher nitrogen content during the first year of growth.
Pruning Guidelines
Prune the plant in late winter or early spring before new growth appears. Remove any dead or diseased canes and thin out the remaining canes to promote better air circulation.
Common Pests and Diseases
Rubus ulmifolius is susceptible to pests such as spider mites, aphids, and thrips. It can also be affected by diseases such as powdery mildew and rust.
Indoor Size Range
Not suitable for indoor growing
Watering Schedule
Water the plant deeply once a week during the growing season. Reduce watering in winter when the plant is dormant.
Temperature Range
Rubus ulmifolius prefers moderate temperatures, around 65-75°F (18-24°C). It can tolerate temperatures as low as 10°F (-12°C) and as high as 90°F (32°C).
Growing Season
Rubus ulmifolius grows from late spring to early fall.
Growing Difficulty Level
Rubus ulmifolius is moderately difficult to grow. It requires regular pruning and can be susceptible to pests and diseases.
USDA Hardiness Zones
Rubus ulmifolius is hardy in USDA zones 6-9.
Did You Know?
The fruit of Rubus ulmifolius is edible and is used to make jams, jellies, and pies. It is also used to make wine and liqueurs.
