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Chinese Butterfly Bush

Buddleja fallowiana (BUD-lee-uh fal-low-ee-AH-nuh)

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

Chinese butterfly bush is a deciduous woody perennial shrub or tree that is native to Tibet and South-Central China. They are typically found in woodlands, on the edge of forests, or along stream banks in higher elevations. The shrub may grow up to 5 to 8 feet tall to 8 to 13 feet wide and has an arching habit, grayish-white wooly stems, velvety, grayish-green leaves, and white to pale lavender blue flowers that are arranged in a panicle. The young shoots are covered in soft silvery downy hairs. The specific epithet, fallowiana , honors George Fallow who was a a gardener at the Royal Botanic Garden in Edinburgh. This plant is a member of the figwort family (Scrophulariaceae). This shrub prefers full sun, moist well-drained soils, and is adaptable to most soil types. This plant is drought and pollution tolerant. It requires protection in cold winters, or it may die back to the ground. It will usually grow back the following spring. Prune it back hard every spring to encourage new bushy growth. Propagate it by using softwood cuttings in the spring. This species is very similar to B. davidii ; however, this species is less hardy, the leaves are more silver in color, and there is a a denser amount of wooly hairs covering the stems, leaves, and buds. It is also slower-growing and less vigorous. Its flowers closely resemble B. davidii and are white, lilac, pale blue, or light purple with a orange center. A number of hybrids have been developed between these two species including 'Lochinch,' 'West Hill,' 'Bishop's Violet,' and 'Mayford Purple'. The Chinese Butterfly Bush has great foliage interest with gorgeous silver leaves that contrast well with other darker green plants in the landscape. Consider this shrub for a cottage garden, as border planting, or along a wall border for protection in USDA Plant Hardiness Zones 8 to 9.. Insects, Diseases, and Other Plant Problems : Monitor for aphids capsid bugs, caterpillars, earwigs, figwort weevils, and spider mites. This shrub may be susceptible to honey fungus, leaf spot, and viral diseases. It can be weedy. More information on Buddleja .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 63 attributes.

How it fits the guild

Guild layer 3 - Shrub (3-15 ft) Optimal soil pH Acid (<6.0); Alkaline (>8.0); 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.

Fills a similar niche Buddleja lindleyana Buddleja x weyeriana Vernonia noveboracensis

Full plant profile

Growing Conditions
Plant type
Perennial; Shrub; Tree
Life cycle
Perennial; Woody
USDA zones
8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day)
Soil texture
Clay; High Organic Matter; Loam (Silt); Sand
Soil pH
Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist
Available space
6-feet-12 feet
NC region
Coastal
Mature size
Height: 5 ft. 0 in. - 8 ft. 0 in. | Width: 8 ft. 0 in. - 13 ft. 0 in.
Growth rate
Slow
Maintenance
Medium
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Arching; Open
Texture
Medium
Foliage
Deciduous
Leaf color
Gray/Silver; Green
Leaf type
Simple
Leaf arrangement
Opposite
Leaf shape
Elliptical; Ovate
Leaf margin
Crenate; Serrate
Leaf feel
Soft; Velvety
Leaf value
Showy
Leaf size
3-6 inches long, < 1 inch wide
Hairs present
Yes
Leaf detail
The leaves are opposite, ovate to narrowly elliptic, grayish-green with dense felt-like white hairs and measure 2 to 5.5 inches long and 0.75 to 2.5 inches wide. The margins are crenate to serrate. The leaf tip is acuminate, and the base is cuneate. They may be sub-sessile or have a short petiole.
Flower color
Blue; Purple/Lavender; White
Flower value
Fragrant; Long Bloom Season; Long-lasting; Showy
Flower form
Panicle
Flower shape
Tubular
Flower size
< 1 inch
Flower detail
The flowers are a small, tubular, fragrant, and white to pale lavender-blue with 4 petals and an orange throat. The flowers are arranged in a panicle. Blooming may occur from May to October.
Bloom time
Fall; Summer
Fruit type
Capsule
Fruit size
< 1 inch long, < 1 inch wide
Fruit detail
The fruit is a small ellipsoid capsule and has wooly hairs. They are often removed because they are not attractive after blooming. The seeds are oblong and winged.
Stem color
White
Stem detail
The stems are smooth, cylinder-shaped, and densely covered white wooly hairs.
Wildlife & Ecology
Native status
Non-native
Origin
Tibet to China
Distribution
Native: China South-Central (Sichuan and Yunnan) and Tibet
Wildlife value
Nectar from flowers attract butterflies, moths, bees, and other pollianators.
Attracts
Bees; Butterflies; Moths; Pollinators
Food & Medicine
Harvest time
Fall
Fruit type
Capsule
Landscape Use
Landscape location
Patio; Vertical Spaces
Landscape theme
Butterfly Garden; Drought Tolerant Garden; Pollinator Garden
Design feature
Border; Foundation Planting; Hedge
Garden tags
#lavender flowers #pollinator plant #air pollution tolerant #flowers late summer #blue flowers #fragrant flowers #silver leaves #gray-green leaves #butterfly friendly #long bloom time #drought tolerant #hairy stems #nectar plant late summer #hairy leaves #nectar plant early fall #bee friendly #flowers early fall #moth friendly #wildlife friendly #weedy #slow growing #arching #short lived
Problems & Resistance
Problems
Short-lived; Weedy
Resistant to
Drought; Pollution
Propagation
Stem Cutting

Planted at Hunnicutt

Nobody’s planted this one yet.