Plant Profile: Rubus bifrons

Taxonomy: Rubus bifrons

Names

Blackberry, Dewberry, Himalayan berry, Hybrid blackberry, Hybrid European blackberry

  • Photo of Rubus bifrons (Rubus bifronss)

Phonetic Spelling:ROO-bus BY-fronz

Genus:Rubus

Species:bifrons

Family:Rosaceae

The Himalayan blackberry, a perennial deciduous shrub native to Europe, has become widely established across North America. It thrives particularly in the mountainous regions of North Carolina, though it can also be found sporadically in the Piedmont and coastal areas of the state. This species is primarily pollinated by insects, but it is more commonly propagated through rooting canes, which are branches that take root. The plant flourishes in full sunlight or partial shade and adapts to a variety of soil types, including sandy, loamy, and clay soils, with a preference for well-drained loamy conditions. While its fruit is edible, it is not as desirable for consumption compared to other blackberry varieties. The Himalayan blackberry features biennial stems, meaning it generates several new stems annually from its perennial rootstock; these stems bear fruit in their second year before dying off. The plant produces apomictic flowers, allowing it to create fruit and viable seeds without the need for fertilization, resulting in seedlings that are genetic clones of the parent plant.

**Diseases, Insects, and Other Plant Problems:**

This genus of plants is particularly vulnerable to honey fungus.

Rubus bifrons Feature Summary

Rubus bifrons Image Gallery

Tags

#thorns
#perennial
#shrub
#wildlife plant
#weedy
#berries
#spines
#edible fruits
#nectar plant late spring
#nectar plant early summer
#nectar plant mid-spring
#pollinator garden

Similar Plants

Rubus bifrons Feature Summary

Attributes
North America
This plant provides nectar for pollinators.
Edible raw or cooked, but flavor is not as satifying as other species of blackberry.
Perennial
Fruit
Mature fruit is up to 3/4 of an inch long.
Flowers
Flowers are white or pink, in large arrays at the ends of branches, sometimes containing as many as 100 flowers. Blooms from April to June.
Pink
White
Spring
Summer
Leaves
Leaves are palmately compound with three or five leaflets. Deciduous to semievergreen. Thtrr to five leaflets, terminal elliptic or ovate to suborbiculate, base rounded to shallowly cordate, unlobed, margins moderately to coarsely serrate, apex acute or acuminate to short-attenuate, abaxial surfaces white (gray-green in shade), with hooked prickles on largest veins, short-velutinous to tomentose, eglandular, rarely sparsely sessile-glandular along midveins.
Compound (Pinnately , Bipinnately, Palmately)
Elliptical
Ovate
Prickly
Stem
arching, sometimes creeping early or with age, sparsely to densely hairy, eglandular or sparsely sessile-glandular, not or weakly pruinose; prickles moderately dense, hooked, erect, stout, broad- or narrow-based.
Hairy (pubescent)
Whole Plant Traits
Perennial
Shrub
Arching
Creeping
Coarse
Spines
Prickles
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)
Good Drainage
Coastal
Mountains
Piedmont
Clay
High Organic Matter
Loam (Silt)
Sand
Landscape
Edible Garden
Pollinator Garden
Naturalized Area
Rock Wall
Pollinators
Spines/Thorns

Rubus bifrons Attributes

Rubus bifrons: Country Or Region Of Origin

Europe

Rubus bifrons: Distribution

North America

Rubus bifrons: Wildlife Value

This plant provides nectar for pollinators.

Rubus bifrons: Edibility

Edible raw or cooked, but flavor is not as satifying as other species of blackberry.

Rubus bifrons: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Rubus bifrons: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Rubus bifrons Fruit

Rubus bifrons: Fruit Description

Mature fruit is up to 3/4 of an inch long.

Rubus bifrons: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Rubus bifrons: Fruit Color

grass
Black

Rubus bifrons: Fruit Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Rubus bifrons: Display/Harvest Time

Fall
Spring
Summer
Winter

Rubus bifrons: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Rubus bifrons Flowers

Rubus bifrons: Flower Description

Flowers are white or pink, in large arrays at the ends of branches, sometimes containing as many as 100 flowers. Blooms from April to June.

Rubus bifrons: Flower Color

filter_vintage
Pink
filter_vintage
White

Rubus bifrons: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Rubus bifrons: Flower Bloom Time

Winter
Spring
Summer
Fall

Rubus bifrons: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Rubus bifrons Leaves

Rubus bifrons: Leaf Description

Leaves are palmately compound with three or five leaflets. Deciduous to semievergreen. Thtrr to five leaflets, terminal elliptic or ovate to suborbiculate, base rounded to shallowly cordate, unlobed, margins moderately to coarsely serrate, apex acute or acuminate to short-attenuate, abaxial surfaces white (gray-green in shade), with hooked prickles on largest veins, short-velutinous to tomentose, eglandular, rarely sparsely sessile-glandular along midveins.

Rubus bifrons: Leaf Color

spa
Green

Rubus bifrons: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Rubus bifrons: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Rubus bifrons: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Rubus bifrons: Hairs Present

No
Yes

Rubus bifrons: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Rubus bifrons Stem

Rubus bifrons: Stem Description

arching, sometimes creeping early or with age, sparsely to densely hairy, eglandular or sparsely sessile-glandular, not or weakly pruinose; prickles moderately dense, hooked, erect, stout, broad- or narrow-based.

Rubus bifrons: Stem Is Aromatic

No
Yes

Rubus bifrons: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Rubus bifrons Whole Plant Traits

Rubus bifrons: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Rubus bifrons: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Rubus bifrons: Maintenance

Low
Medium
High

Rubus bifrons: Texture

Fine
Medium
Coarse

Rubus bifrons: Appendage

Prickles
Spines
Tendrils
Thorns

Rubus bifrons Cultural Conditions

Rubus bifrons: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Rubus bifrons: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Rubus bifrons: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Rubus bifrons: NC Region

Coastal
Mountains
Piedmont

Rubus bifrons: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Rubus bifrons Landscape

Rubus bifrons: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Rubus bifrons: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Rubus bifrons: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Rubus bifrons: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees

Rubus bifrons: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy