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Evergreen Wisteria

Callerya reticulata (KAL-er-yah reh-tick-yoo-LAY-tuh)

Family: Fabaceae Non-native Vine (vertical)

Evergreen wisteria is a native of China, NE Vietnam, and Taiwan. Like true wisteria it is a woody climber with racemes of pea like flowers. However, as you can tell from its scientific name, Callerya reticulata, it is not a wisteria although both plants are part of the Legume (bean) family and the growth habit, leaves, flowers and fruit are similar. The genus name is in honor of of Joseph Callery, a French 19th century French missionary who traveled and collected botanical specimens in China. The species name 'reticulata' means 'netted' and refers to the pattern of the veining on the leaves. This plant is hardy in regions 8-10 so it may be tender in parts of North Carolina. If you have an area sheltered from the winter weather you could try training it up a wall. This plant likes a sunny spot with fertile, well-drained, loamy soil with a pH between 5.6 – 7.5. It can grow up to 15 ft tall and 6 ft wide This plant requires moderate watering, so don't let the container dry out and feed it with a water-soluble fertilizer every 2 weeks. If you want more of them just plant a few seeds or take stem cuttings. The fragrant flowers make this plant ideal for a fragrant garden but it would also be at home in an aromatherapy garden or a naturalistic landscape. Train it to an arbor, trellis or pergola to provide shade on a summer's day. It can also be grown in a container and place where the fragrance can be enjoyed. The bluish-purple flowers have yellow centers and appear in hanging clusters in summer through fall. Insects, Diseases, and Other Problems: Watch for spider mites, scale insects, mealybugs, aphids, whiteflies, and weevils. Fungal diseases such as powdery mildew, rust, black rot, and blight can also affect the plant

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 64 attributes.

How it fits the guild

Guild layer 6 - Vine (vertical) Optimal soil pH Neutral (6.0-8.0)
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 Petrea volubilis
Fills a similar niche Betonica officinalis Clematis glaucophylla Salvia 'Amistad'

Full plant profile

Growing Conditions
Plant type
Vine
Life cycle
Perennial
USDA zones
8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b
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
Loam (Silt)
Soil pH
Neutral (6.0-8.0)
Soil drainage
Moist
Available space
3 feet-6 feet
NC region
Coastal; Piedmont
Mature size
Height: 12 ft. 0 in. - 15 ft. 0 in. | Width: 4 ft. 0 in. - 6 ft. 0 in.
Growth rate
Medium
Maintenance
Medium
Canopy layer
6 - Vine (vertical)
Form & Appearance
Habit / form
Climbing
Texture
Fine
Foliage
Broadleaf Evergreen
Leaf color
Green
Leaf type
Compound (Pinnately , Bipinnately, Palmately)
Leaf arrangement
Opposite
Leaf shape
Elliptical; Lanceolate; Oblong
Leaf margin
Entire
Leaf feel
Papery; Smooth
Leaf size
1-3 inches long, 1-3 inches wide
Hairs present
No
Leaf detail
The leaves of this plant are compound being made up of between 7 and 13 leathery leaflets. Each of these leaflets measures 1 – 3” long and less than 2 inches wide. They are somewhat oval in shape with a pointy tip. They feel papery to the touch.
Flower color
Purple/Lavender
Flower value
Showy
Flower form
Raceme
Flower shape
Irregular
Flower size
< 1 inch
Flower detail
The flower on this plant is in the form of a raceme, or hanging bunch, of small, pea-like flowers in bluish-purple with yellow centers. The racemes can be 6 – 8 inches long and are carried in the axils of the leaves near the ends of the branches. They have a light perfume reminiscent of camphor or cedar. The removal of spent flowers will encourage blooming and prevent the formation of pods.
Bloom time
Fall; Summer
Fruit color
Black
Fruit type
Legume
Fruit size
> 3 inches long, < 1 inch wide
Fruit detail
The fruit is a pod which ripens to black as the season progresses. It can contain from 1 to 10 oblong black seeds. The pod will burst open when fully ripe and scatter the seeds as far away from the parent plant as possible.
Bark color
Dark Brown; Red/Burgundy
Bark detail
The bark on this plant begins with an attractive reddish-brown coloration which darkens to brown as it matures.
Stem color
Brown/Copper; Red/Burgundy
Stem detail
The stem of this plant begins as a soft twining growth with an attractive reddish-brown color. As it matures it sends out many branches. Over time it becomes more and more woody and the color changes to brown. It can become a very thick stem or thin trunk.
Wildlife & Ecology
Native status
Non-native
Origin
China, NE Viet Nam, Taiwan
Distribution
US, Japan, China, Japan
Wildlife value
This plant is food for the caterpillars of the Celastrina argiolus, Holly Blue butterfly (North America), Curetis acuta, Angled sunbeam butterfly (Indomalayan region), and Lampides boeticus, Pea blue or long-tailed blue butterfly (Iberian peninsula) It is pollinated by Ants, Beetles, Fies, Thrips, and Wasps.
Attracts
Butterflies; Pollinators
Food & Medicine
Harvest time
Fall
Fruit type
Legume

Uses (ethnobotany)

This plant has been used in Chinese traditional medicine for many years and is still used today. It's traditional uses have been to treat many kinds of blood disorders and also auto-immune disease. Recent investigations have shown the presence of flavonoid derivatives that have an inhibitory action on liver cancer cells in vitro. There is also a substance called genistien which has shown anti-cancer, anti-diabetes and anti-oxidant properties. Work is being done to investigate its use as a palliative cure for breast cancer. Genistien is also toxic to parasites like flukes, roundworms and tapeworms without being harmful to the host.

Landscape Use
Landscape location
Container; Naturalized Area; Vertical Spaces; Woodland
Landscape theme
Asian Garden; Butterfly Garden; Pollinator Garden
Garden tags
#vertical spaces #showy flowers #flowers late summer #purple flowers #arbor #flowers early fall #trellis #full sun #container plant
Problems & Resistance
Propagation
Seed; Stem Cutting

Planted at Hunnicutt

Nobody’s planted this one yet.