Alpine aster (Aster alpinus)
Alpine aster (Aster alpinus) is a perennial plant that can grow 10cm – 50cm tall and 10cm – 50cm wide. In this growing guide we’ll learn the cultivation details and how to plant Alpine aster (Aster alpinus).
This plant has several common names including: alpine aster, blue alpine daisy or rock aster.
This is a deciduous plant that takes 2-5 years to reach full maturity.
In this article
Common name: alpine aster, blue alpine daisy, rock aster
Scientific name: Aster alpinus
Plant type: Perennials
Height: 10cm – 50cm
Spread: 10cm – 50cm
Sunlight: Full Sun
Soil: Chalk, Loam, Sand
Moisture: Well drained
Garden type: City & Courtyard Gardens, Informal Garden, Rock & Gravel Garden
Planting type: Flower borders and bedding
Other characteristics: Plants for pollinators, RHS Award of Garden Merit
Perennial plants are one of the largest groups of plants.
They offer color, shape, fragrance and seasonal textures. The variety is such that there are plants to suit all sizes and styles of garden.
Traditionally, perennials are grown in borders, using a wall or hedge as a backdrop to bring out all their splendor during summer.
But since most gardens are not large enough for long borders dedicated exclusively to perennials, they are usually planted in mixed borders and beds, along with shrubs, annuals, biennials, and bulbs that extend the season of interest.
How to plant
In this section we will learn how to plant Alpine aster (Aster alpinus), know its needs in terms of soil, watering and sun exposure.
Alpine aster (Aster alpinus) is not a demanding plant regarding the type of soil and can grow in chalk, loam or sand.
The chalky soil is pale and contains chunks of calcium-rich rock. It is a fertile and well-draining soil, almost always alkaline.
The loam soil is dark, rich in organic matter but balanced in minerals. It offers the best of all worlds, retaining enough water for the plants, but allowing excess moisture to drain away. This is the most desired type of garden soil, perfect for most plants.
Sandy soil is light, porous and very easy to drain. It is a soil poor in organic matter and nutrients. It is composed of relatively large mineral particles that allow water to drain quickly.
It is not very sensitive to soil acidity or alkalinity and grows well in soils with pH acid, alkaline or neutral.
Regarding drainage, Aster alpinus likes to grow in well drained soil.
Alpine aster (Aster alpinus) should be grown in full sun places.