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False Spirea

Astilbe (ah-STIL-bee ar-END-see-eye)

Family: Saxifragaceae Non-native Herbaceous (3-15 ft)

Hybrid Astilbe is a popular and colorful perennial with bright floral plumes and green to bronze fern-like foliage. They are wonderful plants to bring color to your garden. Depending on the variety, they will provide blooms from late spring to fall. With proper moisture, the foliage remains attractive throughout its blooming period. They grow about 24 to 36 inches tall and 18-24 inches wide. The showy flowers are excellent for floral cuttings or use in a dried arrangement. Astilbes are native to China, Japan, and Korea. Astilbe x arendsii are hybrids and are the result of crosses between Astilbe Chinensis, Astilbe Japonica, Astilbe thunergii, and Astilbe astilboides. These hybrids were developed in Germany by George Arends in the 1920s. The genus name, Astilbe , is derived from the Greek words meaning "without brightness." This is said to reference some of the species having dull leaves. The species name refers to George Arends who developed the hybrids. Their root system is rhizomatous. The hybrids develop into mounds of fern-like foliage and have erect or arching feathery plumes with tiny blooms. The many different varieties offer a range of colored blooms from red, pink, peach, purple, and white. The foliage varies from medium green, dark green, and bronze. Depending on the variety the bloom times vary from late spring, early summer, mid-summer, late summer, and fall. Their fruits are dried seed heads. The spent flowers and dried seedheads are ornamental through the fall and winter months. They prefer shady and moist sites. The soil needs to be organically rich and well-drained. The plant may grow in full sun but will require constant moisture. They are propagated by division or seeds. It is best to divide the plants about every 4 years, preferably in the spring or fall. The plant attracts butterflies and is resistant to rabbits and deer. Hybrid Astilbe is an excellent plant for perennial borders, woodlands, containers, and groundcovers. They perform well in shade gardens, wet sites, or near ponds and streams. Consider adding this plant to your garden for a splash of color and added interest in your landscape. Quick ID Hints : Herb with ternately compound leaves Leaves with swollen petiole joints* Terminal pyramidal panicles of numerous, small flowers Insects, Diseases, and Other Problems: The plant has no serious insect or disease issues. Possible insect pests include Whitefly, Japanese beetle, and Black vine weevil. Possible diseases include powdery mildew, wilt, bacterial leaf spot, and Cercospora leaf spot. In hot summer or periods of drought, the foliage may decline if the soil is not kept moist.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 50 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (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.

Often confused with Aruncus dioicus Heuchera sanguinea

Full plant profile

Growing Conditions
Plant type
Herbaceous Perennial
Life cycle
Perennial
USDA zones
3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Dappled Sunlight (Shade through upper canopy all day) | 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); Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist | Occasionally Wet
Available space
12 inches-3 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 1 ft. 6 in. - 4 ft. 6 in. | Width: 1 ft. 0 in. - 2 ft. 0 in.
Maintenance
Low; Medium
Canopy layer
4 - Herbaceous (3-15 ft)
Form & Appearance
Habit / form
Clumping; Mounding
Texture
Medium
Leaf color
Brown/Copper; Green
Leaf type
Compound (Pinnately , Bipinnately, Palmately)
Leaf shape
Oblong; Ovate
Leaf margin
Serrate
Leaf value
Long-lasting
Hairs present
No
Leaf detail
Compound, usually 2-3 ternately compound, stipulate; rachis swollen and conspicuously jointed at base and junction of petolies; leaflets ovate-oblong, short-acuminate, cuneate, serrate to doubly serrate.
Flower color
Orange; Pink; Purple/Lavender; Red/Burgundy; White
Flower value
Good Dried; Long-lasting; Showy
Flower form
Panicle; Spike
Flower detail
Terminal, erect to arching, narrow to broad pyramidal panicles; lateral branches densely clustered, short. Small, numerous, red, peach, pink, white to lavender; petals 5.
Bloom time
Fall; Spring; Summer
Fruit value
Good Dried
Fruit detail
The fruits are dried seed heads.
Wildlife & Ecology
Native status
Non-native
Origin
Asia, hybrid origin
Wildlife value
Attracts butterflies
Attracts
Butterflies
Play value
Attractive Flowers; Colorful
Food & Medicine
Harvest time
Fall; Winter
Landscape Use
Landscape location
Container; Patio; Pond; Woodland
Landscape theme
Butterfly Garden; Cottage Garden; Cutting Garden; Pollinator Garden; Shade Garden
Design feature
Accent; Border; Mass Planting; Small groups; Specimen
Garden tags
#shade garden #flower arrangements #border planting #water garden #fantz #summer flowers #pink flowers #full sun tolerant #partial shade tolerant #wet soils tolerant #white flowers #red flowers #rabbit resistant #peach flowers #dried arrangements #purple flowers #deer resistant #cutting garden #perennial #cpp #HS303 #fpp
Problems & Resistance
Resistant to
Black Walnut; Deer; Heavy Shade; Rabbits; Wet Soil
Particularly resistant to
Deer and rabbit resistant
Propagation
Division; Seed

Planted at Hunnicutt

Nobody’s planted this one yet.