Students for Stewardship The Cork Board
← Back to the library

Blackberry

Rubus odoratus (ROO-bus oh-dor-AY-tuss)

Family: Rosaceae Native Shrub (3-15 ft)

Purple flowering raspberry is a native deciduous perennial of Eastern North America. It is common in the mountain region of North Carolina and is one of the easiest to recognize Rubus species, with large palmately lobed leaves and colorful petals. It is a deciduous shrub with canes that can grow to 6 feet tall and 12 feet across. It is typically grown as an ornamental because of its rose-like, long-blooming, fragrant flowers, its medium green leaves that turn golden in the fall, and hairy stems with virtually no prickles. In addition to its appearance, the lackluster fruit (edible but somewhat dry, crumbly and unappetizing) also favors it use as an ornamental. The plant is sometimes commonly called thimbleberry (though this common name is usually more appropriate for the similar but white-flowered Rubus parviflorus of the West). This plant is beneficial for songbirds, game birds, butterflies, bees, large and small mammals. Also used for nesting material for bees. The Purple Flowering Raspberry grows best in average, medium moisture, well-drained soil in full sun to part shade. It will grow well in sandy soils, but does not like clay. It has good shade tolerance. It best to prune immediately after fruiting. Grows best in moist but not wet soil, enriched with organic matter. It dislikes high humidity and high temperatures and needs good air circulation. It is found naturally in upland forests, boulderfields, rock outcrops, thickets, and substrates. It can be propagated from bare root, seed, or sprigs. An aggressive, suckering habit needs to be watched. Diseases, Insects, and Other Plant Problems: Other than honey fungus, to which most Rubus species are susceptible, there are no known problems. More information on Rubus .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 51 attributes.

How it fits the guild

Guild layer 3 - Shrub (3-15 ft)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Native Plant; Perennial; Shrub
Life cycle
Perennial
USDA zones
3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
High Organic Matter; Loam (Silt); Sand
Soil drainage
Good Drainage | Moist
NC region
Mountains
Mature size
Height: 3 ft. 0 in. - 6 ft. 0 in. | Width: 4 ft. 0 in. - 8 ft. 0 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Erect; Spreading
Texture
Medium
Foliage
Deciduous
Leaf color
Green
Leaf type
Simple
Leaf margin
Serrate
Leaf feel
Velvety
Leaf size
> 6 inches wide
Hairs present
Yes
Leaf detail
Palmate, 5-lobed, maple-like, medium green leaves become pale yellow in fall. The leaves are simple, finely serrated.
Fall color
Gold/Yellow
Flower color
Pink; Purple/Lavender
Flower value
Fragrant; Long Bloom Season; Showy
Flower size
1-3 inches
Flower detail
Rose-like, fragrant, 2" wide, rose-purple flowers which appear over a long summer bloom period. Flowers fade to magenta-pink in summer. The flowers are flat and fragrant. Flowers bloom April-August.
Bloom time
Spring; Summer
Fruit type
Drupe
Fruit value
Edible
Fruit size
< 1 inch wide
Fruit detail
Flowers give way to 3/4" diameter, cup-shaped red fruits. Fruits are available July-October and are edible.
Stem color
Brown/Copper
Stem detail
Hairy stems but virtually no prickles. Older bark will peel. Has a scent similar to cedar.
Wildlife & Ecology
Native status
Native
Origin
Eastern United States
Wildlife value
Beneficial for songbirds, game birds, butterflies, bees, large and small mammals. Also used for nesting material for bees. This plant provides nectar for pollinators.
Attracts
Bees; Butterflies; Pollinators; Small Mammals; Songbirds
Food & Medicine
Edible parts
Fruit
Harvest time
Fall; Summer
Fruit type
Drupe

Edibility

Edible but somewhat dry, crumbly and unappetizing.

Landscape Use
Landscape location
Woodland
Landscape theme
Edible Garden; Native Garden; Pollinator Garden
Garden tags
#deciduous #shrub #native garden #bird friendly #butterfly friendly #food source nectar #food source pollen #mammals #food source soft mast fruit #Audubon #nectar plant late spring #nectar plant early summer #nectar plant mid-spring #bee friendly #pollinator plant #perennial #wildlife friendly #NC native #NC Native Pollinator Plant #fragrant flowers
Problems & Resistance
Insect problems
Raspberry Cane Borer; Rednecked Cane Borer
Propagation
Root Cutting; Seed

Planted at Hunnicutt

Nobody’s planted this one yet.