Alpine aster

Aster alpinus
Aster family (Asteraceae)


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Aster alpinus, the alpine aster or blue alpine daisy, is a species of flowering plant in the family Asteraceae, native to the mountains of Europe (including the Alps), with a subspecies native to Canada and the United States. This herbaceous perennial has purple, pink, or blue flowers in summer.

Description

It grows to be about 6–12 inches tall (15–30 cm). The bloom color may be pink, violet-lavender, or white-near white. In the UK this plant has gained the Royal Horticultural Society's Award of Garden Merit.

Distribution and habitat

It grows very slowly in clay, silt, loam, silty clay, and sandy clay. Its minimum pH scale is 6 and maximum pH scale is 7.5. It grows erectly in a "single crown" form.

It does better in generally cooler climates. Usually it is adapted to clay, silt, loam, silty clay, sandy clay, clay loam, silt loam, sandy loam, silty clay loam and sandy clay loam soils, and prefers low fertility. The plant can tolerate only a minimum temperature of -28 °C / -18.4F after the occurrence of cell damage. It can survive medium heat of fire and requires at least 90 frost free days for proper growth.

Ecology

It is herbaceous and attractive to bees, butterflies, and birds.

Conservation

NatureServe lists variety Aster alpinus var. vierhapperi as Secure Variety (T5) in Canada, but Critically Imperiled (S1) in Ontario and Vulnerable (S3) in Alberta. In the United States, it is Critically Imperiled (S1) in Colorado and Wyoming.

References


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Size Shape Colour Ranging
Size  Middle      Shape  Roset       Colour Ranging  Single
Middle Roset Single
0 LookAlikes (LA):
Alpine aster
Alpenaster
Alpen-Aster
Aster des Alpes
Astro alpino
Aster alpinus [L.]
Aster alpinus [L.]
Астра альпийская
高山紫菀