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Red Mulberry

Morus rubra (MOR-us ROO-brah)

Family: Moraceae Native Canopy (>40 ft)

Morus rubra , or Red Mulberry, is a deciduous tree that may grow to 30 feet with a short trunk about 2 feet in diameter and a dense, spreading crown. The tree grows throughout North Carolina, usually in the rich, red soils of lower and middle parts of the state, but it is found in all regions. There are no other native species of mulberry in the state. The leaves are alternate, thin, somewhat heart-shaped, and rough with a toothed margin and up to 3 lobes. The bark is gray-brown with long, scaly ridges. In spring, small, pale green male and female slim, cylindrical flowers mature. The small tree produces a 1 to 1.25 inch long cluster of drupes that mature in summer. Fruit resembles a blackberry and, if eaten when unripe, are poisonous as is the milky white sap that all parts of the tree produces. Fruits that are eaten when ripe are harmless. The Red mulberry is best grown in rich, moist, well-drained soils in full sun to part shade. It will be at its best in full sun. Prune in late fall or winter to avoid bleeding. It is easily grown from seed or cuttings and may also self-seed somewhat prolifically. It does not do well in poor soil. The fruits are relished by birds but dropped fruit can cause maintenance issues such as staining concrete walkways, patios, and cars, so be aware of where the canopy will extend when choosing the location to plant one of these trees. These trees can become weedy. Herbicides are not effective, the best management is to hand pull seedlings when young. Insects, Diseases, or Other Plant Problems: Borers may be a problem with this plant, particularly in the South. Whiteflies mass on some trees. Bacterial blight may kill foliage/branches. Coral spot cankers may cause twig dieback. Bacterial leaf scorch, powdery mildew, root rot, and witches broom may also occur. Watch for scale, mites, and mealybugs. Weedy self-seeding and messy fruit are concerns.

Source: NC State Extension Gardener Plant Toolbox ↗ Reconciled to full toolbox: matched by slug to slug 'morus-rubra'. Identity (id/common/scientific name) preserved from the original 87-plant Hunnicutt set; attribute data refreshed from the 74-attribute toolbox scrape.

How it fits the guild

Guild layer 1 - Canopy (>40 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.

Often confused with Ficus carica Ficus carica 'Brown Turkey'

Full plant profile

Growing Conditions
Plant type
Edible; Native Plant; Perennial; Poisonous; Tree
Life cycle
Woody
USDA zones
4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
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)
Soil texture
Clay; High Organic Matter; Loam (Silt); Sand
Soil drainage
Good Drainage | Moist | Occasionally Dry
Available space
6-feet-12 feet; 12-24 feet; 24-60 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 25 ft. 0 in. - 60 ft. 0 in. | Width: 35 ft. 0 in. - 40 ft. 0 in.
Growth rate
Rapid
Maintenance
Medium
Canopy layer
1 - Canopy (>40 ft)
Form & Appearance
Habit / form
Dense; Erect; Irregular; Open; Rounded; Spreading
Texture
Coarse
Foliage
Deciduous
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Alternate
Leaf shape
Oblong; Ovate
Leaf margin
Dentate; Lobed; Serrate
Leaf feel
Rough; Soft
Leaf size
> 6 inches long, 3-6 inches wide
Hairs present
Yes
Leaf detail
The Red mulberry has heart-shaped, thin, toothed, usually dark green leaves (3 to 5 inches long, 2 to 4 inches wide). The leaves can be quite variable, however, ranging from unlobed to deeply lobed and from rough-textured to glabrous on the upper surfaces. Lobed leaves are more frequently found on new shoots and unlobed leaves are more frequently found in tree crowns. The leaves turn yellow in fall. Underside of leaf has fine hairs and is soft to the touch. The leaves can be lobed or un-lobed with a very rough top side and hairy underside, typically do not have more than 4 lobes.
Fall color
Gold/Yellow
Flower color
Gold/Yellow; Green
Flower form
Catkin; Insignificant
Flower shape
Tubular
Flower size
< 1 inch
Flower detail
Unisexual greenish flowers in small, drooping, catkin-like spikes appear in early spring with male and female flowers usually appearing on separate trees (dioecious). Flowers bloom from April to May.
Bloom time
Spring
Fruit color
Black; Purple/Lavender; Red/Burgundy
Fruit type
Aggregate; Berry; Drupe
Fruit value
Edible; Fragrant; Showy
Fruit size
1-3 inches long
Fruit detail
Sweet blackberry-like edible fruits that are reddish maturing to dark purple in color. The fruits are sweet and juicy and may be eaten off the tree. The fruits are also used for jellies, jams and wines. The fruits are not commercially sold because they have very short “shelf lives” and pack/ship very poorly. Fruit displays from May to June.
Bark color
Dark Brown; Dark Gray
Bark detail
Bark is grey-brown with a reddish tinge, scaly ridges that peel and curl.
Stem color
Brown/Copper; Gray/Silver
Stem detail
Branch bark and twigs are brown, reddish brown, or gray and more smooth; the twigs have scattered white lenticels. Young shoots are light green and usually glabrous.
Wildlife & Ecology
Native status
Native
Origin
South East Canada to Central and Eastern United States.
Distribution
AL , AR , CT , DC , DE , FL , GA , IA , IL , IN , KS , KY , LA , MA , MD , MI , MN , MO , MS , NC , NE , NJ , NY , OH , OK , PA , RI , SC , SD , TN , TX , VA , VT , WI , WV Canada: ON
Wildlife value
It is sometimes considered to be a host plant for Red Admiral butterfly. Its fruits are eaten by many birds, especially gray catbirds and northern mockingbirds, foxes, opossums, squirrels, and raccoons.
Attracts
Butterflies; Small Mammals; Songbirds
Play value
Attracts Pollinators; Edible fruit; Wildlife Food Source
Food & Medicine
Edible parts
Fruit
Harvest time
Summer
Fruit type
Aggregate; Berry; Drupe

Edibility

Ripe fruits are sweet, juicy, and can be eaten raw or made into pies, jellies, or jams. Also used in breads, muffins, and cakes.

Uses (ethnobotany)

Native Americans used the the plant medicinally as a worming agent, remedy for dysentery, laxative and emetic. Wood is light, soft, not strong, but durable. Often used for fencing and barrels. It is not considered an important, commercial tree.

Landscape Use
Landscape location
Naturalized Area; Recreational Play Area; Woodland
Landscape theme
Butterfly Garden; Children's Garden; Edible Garden; Native Garden; Pollinator Garden
Garden tags
#fire low flammability #edible fruits #messy #poisonous #naturalizes #edible garden #native garden #children's garden #small mammals #pollinator plant #food source summer #NC native #bird friendly #butterfly friendly #larval host plant #Piedmont Mountains FACU #food source herbage #Coastal FACU #food source nectar #mammals #food source soft mast fruit #Audubon #non-toxic for cats #non-toxic for horses #non-toxic for dogs #playground plant #showy fruits #wildlife friendly #weedy #HS304 #dye plant
Problems & Resistance
Problems
Messy; Poisonous to Humans; Weedy
Resistant to
Deer; Drought; Fire; Pollution
Particularly resistant to
fire in the landscape. Heat and drought tolerant.
Propagation
Seed; Stem Cutting
Fire risk
low flammability
Poison severity
Low
Poison parts
Sap/Juice
Poison symptoms
Causes low toxicity if eaten. Hallucinations and stomach upset from unripe fruit and sap.
Toxic principle
Unidentified
Contact dermatitis
Yes
Toxicity summary
Low severity poison; parts: Sap/Juice; contact dermatitis

Planted at Hunnicutt

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