Clasping Aster Symphyotrichum patens
Other Common Name(s):
- Phonetic Spelling
- sim-fy-oh-TRY-kum PAT-ens
- Description
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Spreading aster is a native herbaceous perennial in the Asteraceae family. It is found in rocky or sandy open woods and thickets. Its showy, fragrant blue-purple blooms come in August and last through October, blooming after most asters are finished. It is drought tolerant and prefers medium to dry well-drained soil. While it prefers full sun, it does tolerate some shade. It works well in a woodland, butterfly, cottage, or rock garden.
Insects, Diseases, and Other Plant Problems: No serious insect or disease problems. Asters can have some susceptibility to powdery mildew and aster wilt. Poorly-drained clay soils and poor air circulation can contribute to this. Improving drainage and good air circulation helps reduce the incidence of foliar diseases.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Symphyotrichum
- Species:
- patens
- Family:
- Asteraceae
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Country Or Region Of Origin:
- Southeast USA
- Wildlife Value:
- Members of the genus Symphyotrichum support the following specialized bees: Andrena (Callandrena s.l.) asteris, Andrena (Callandrena s.l.) asteroides, Andrena (Cnemidandrena) hirticincta, Andrena (Cnemidandrena) nubecula, Andrena (Callandrena s.l.) placata, Andrena (Callandrena s.l.) simplex, and Colletes simulans.
- Dimensions:
- Height: 2 ft. 0 in. - 3 ft. 0 in.
- Width: 1 ft. 6 in. - 2 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Herbaceous Perennial
- Native Plant
- Habit/Form:
- Erect
- Growth Rate:
- Medium
- Maintenance:
- Low
- Texture:
- Coarse
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Cultural Conditions:
- 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:
- Shallow Rocky
- Soil Drainage:
- Good Drainage
- Available Space To Plant:
- 12 inches-3 feet
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 4a, 4b, 5b, 5a, 6a, 6b, 7a, 7b, 8b, 8a
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Fruit:
- Fruit Color:
- Brown/Copper
- Purple/Lavender
- Fruit Type:
- Achene
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Flowers:
- Flower Color:
- Blue
- Purple/Lavender
- Flower Value To Gardener:
- Showy
- Flower Bloom Time:
- Fall
- Summer
- Flower Shape:
- Saucer
- Flower Petals:
- more than 20 petals/rays
- Flower Size:
- 1-3 inches
- Flower Description:
- Blue to violet rays with yellow centers.
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Leaves:
- Leaf Color:
- Black
- Green
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Lanceolate
- Oblong
- Leaf Margin:
- Crenate
- Entire
- Hairs Present:
- Yes
- Leaf Length:
- 1-3 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- This plant leaf base (sessile) is attached to the stem without having a stalk or peduncle.
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Stem:
- Stem Color:
- Brown/Copper
- Green
- Stem Is Aromatic:
- No
- Stem Surface:
- Hairy (pubescent)
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Landscape:
- Landscape Location:
- Woodland
- Landscape Theme:
- Cottage Garden
- Native Garden
- Rock Garden
- Design Feature:
- Accent
- Border
- Mass Planting
- Attracts:
- Bees
- Butterflies
- Resistance To Challenges:
- Dry Soil
