Alphabetical Plant Listing

Aster alpinus (Alpine Aster)

Alpine Aster, Blue Alpine Daisy, Rock Aster


Fully frost hardy, Aster alpinus (Alpine Aster) is a clump-forming herbaceous perennial boasting masses of large daisy-like flowers, 2 in. across (5 cm), with blue-violet rays and golden-yellow centers. Blooming in late spring to mid summer, the eye-catching blossoms are attractive to butterflies. Borne on slender stems, their gentle color blends with almost any other color in the garden. The foliage of narrow dark green leaves is handsome all season. Slowly-spreading, with a neat and compact habit, Alpine Aster is great for sunny border fronts, rock gardens, or large patio containers.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
  • Grows up to 6-12 in. tall and wide (15-30 cm).
  • Thrives in full sun in moderately fertile, medium moisture, well-drained soils. Tolerates light shade. Drought and rocky soil tolerant.
  • Great for beds and borders, city gardens, cottage gardens, rock gardens and banks and slopes.
  • No serious pest or disease issues. Keep an eye out for slugs, snails, leaf and bud eelworms, aphids, wilts, leaf spot and gray moulds.
  • Cut back after flowering.
  • Propagate by seed in pots in cold frame in spring or autumn or propagate by division in spring.
  • Native to Europe, North America, Temperate Asia.

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Requirements

Hardiness 4 – 8
Heat Zones 1 – 8
Plant Type Perennials
Plant Family Asters
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early,Mid)
Height 6" – 1' (15cm – 30cm)
Spread 6" – 1' (15cm – 30cm)
Spacing 12" (30cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Plant of Merit, Showy
Native Plants United States, Alaska, Rocky Mountains, Colorado
Tolerance Deer, Drought, Rocky Soil
Attracts Butterflies
Garden Uses Banks and Slopes, Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

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By Flower_Garden, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 8
Heat Zones 1 – 8
Plant Type Perennials
Plant Family Asters
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early,Mid)
Height 6" – 1' (15cm – 30cm)
Spread 6" – 1' (15cm – 30cm)
Spacing 12" (30cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Plant of Merit, Showy
Native Plants United States, Alaska, Rocky Mountains, Colorado
Tolerance Deer, Drought, Rocky Soil
Attracts Butterflies
Garden Uses Banks and Slopes, Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

Great Plant Combination Ideas with Asters

Guides with Asters

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