Students for Stewardship The Cork Board
← Back to the library

Allspice

Calycanthus chinensis (kal-ee-KAN-thus chi-NEN-sis)

Family: Calycanthaceae Non-native Shrub (3-15 ft)

Chinese sweetshrub is a deciduous shrub native to China in the sweetshrub family (Calycanthaceae). Its native habitat is woodlands along streams at elevations of 1,900 to 3,200 feet. The species epithet is Latin for “of China.” Chinese sweetshrub grows best in full sun to partial shade in moist, well-drained acidic soil enriched with organic matter. Keep the soil evenly moist and protect it from winter cold when temperatures drop below 20°F. Chinese sweetshrub has a dense, rounded form reaching 8 feet tall and wide. It has glossy green leaves that are rough to the touch. Somewhat similar to camellias, the 2- to 3-inch showy flowers appear in springtime. The outer tepals are white with a hint of pink. The light yellow inner tepals have a waxy appearance. The flowers are pollinated by small beetles. It has become a rare species in the wild; its survival will not be guaranteed without intervention. Use this shrub in borders, as a specimen or as a foundation plant in an Asian, cottage or woodland garden. Insects, Diseases and Other Plant Problems: No significant insect, disease or other problems.

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

How it fits the guild

Guild layer 3 - Shrub (3-15 ft) Optimal soil pH Acid (<6.0)
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 Calycanthus 'Venus'
Fills a similar niche Ceratostigma willmottianum Rosa White Licorice™ 'Wekdidusinra' Sinojackia rehderiana

Full plant profile

Growing Conditions
Plant type
Perennial; Shrub
Life cycle
Woody
USDA zones
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)
Soil pH
Acid (<6.0)
Soil drainage
Good Drainage | Moist
Available space
6-feet-12 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 6 ft. 0 in. - 8 ft. 0 in. | Width: 6 ft. 0 in. - 8 ft. 0 in.
Growth rate
Medium
Maintenance
Medium
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Dense; Erect; Rounded
Texture
Coarse
Foliage
Deciduous
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Opposite
Leaf shape
Elliptical; Ovate
Leaf margin
Entire
Leaf feel
Glossy; Rough
Leaf value
Fragrant
Leaf size
> 6 inches long, 3-6 inches wide
Hairs present
No
Leaf detail
The 6-inch leaves are a glossy dark green. They have a bit of roughness on the upper surface.
Fall color
Gold/Yellow
Flower color
Blue; Pink; White
Flower value
Showy
Flower form
Solitary
Flower shape
Cup
Flower size
3-6 inches
Flower detail
The creamy pinkish-blue to white outer portion of the petals. Yellow inner portion with maroon markings. Yellow stamens. Blooms resemble camellias.
Bloom time
Spring
Fruit color
Black; Brown/Copper
Fruit type
Capsule
Fruit size
1-3 inches long
Fruit detail
The fruits are top-shaped capsules enclosing many large seeds. They have long, silky hairs. They overwinter on the shrub.
Bark color
Dark Brown; Dark Gray
Stem color
Brown/Copper; Gray/Silver
Stem detail
Older stems have gray to gray-brown bark.
Wildlife & Ecology
Native status
Non-native
Origin
Eastern China
Wildlife value
Small beetles pollinate the flowers.
Attracts
Pollinators
Play value
Attractive Flowers; Attracts Pollinators; Fragrance; Shade; Textural
Food & Medicine
Harvest time
Fall
Fruit type
Capsule

Uses (ethnobotany)

Used in the landscape as a shrub or small tree.

Landscape Use
Landscape location
Container; Patio; Walkways; Woodland
Landscape theme
Asian Garden; Cottage Garden; Shade Garden
Design feature
Accent; Border; Foundation Planting; Small groups; Specimen
Garden tags
#deciduous #deciduous shrub #cream flowers #flowers mid-summer #large flowers #glossy leaves #deer resistant #dry soils intolerant #disease resistant #shrub #insect resistant #drought intolerant #rabbit browsing plant #rare #wet soils intolerant #tree #shrub border
Problems & Resistance
Resistant to
Deer; Diseases; Insect Pests
Propagation
Seed; Stem Cutting

Planted at Hunnicutt

Nobody’s planted this one yet.