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Blue wood aster in the GardenTags plant encyclopedia

Aster cordifolius 'Silver Spray'

 

Blue wood aster

Clump forming and tall growing plant producing masses of lavender blue, star-like flowers on arching stems in late summer/autumn. Grows well around coastal areas.

 
plant Features
  • Blue wood aster likes full sun

    Full sun

  • Blue wood aster likes very little water

    Very little water

  • Blue wood aster is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Blue wood aster likes moist and fertile

    Moist and fertile

 
plant information

Common name

Blue wood aster

Latin name

Aster cordifolius 'Silver Spray'

type

Herbaceous Perennials

family

Asteraceae

ph

5.0 - 7.5 Acid - Neutral

  • Light

    Blue wood aster likes full sun

    Full sun

  • Frost

    Blue wood aster is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Soil

    Blue wood aster likes moist and fertile

    Moist and fertile

  • Water

    Blue wood aster likes very little water

    Very little water

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Blue wood aster is 0.75meters x 1.00meters 0.75 M 1.00 M

Aster cordifolius 'Silver Spray'

Clump forming and tall growing plant producing masses of lavender blue, star-like flowers on arching stems in late summer/autumn. Grows well around coastal areas.


Planting Outdoors spring

From Early Spring TO Mid Spring

Put container plants into the soil having dug in some compost first and water in well.

 

Flowering Season

From Late Summer TO Mid Autumn

Masses of lavender blue star like flowers on arching stems in late summer/autumn

 

Planting Outdoors autumn

From Early Autumn TO Late Autumn

Plant container grown plants in moderately fertile, moist soil in partial shade.

 

Propagation by division.

From Early Spring TO Early Spring

After approximately three years, once herbaceous perennial varieties have become established clumps they should be divided in order to retain vigour. Many herbaceous plants can be divided in autumn, but spring may be the safer option just as they are starting into growth. Autumn division may result in the loss of smaller divisions if a cold, wet winter follows. The simplest method is to carefully dig around the clump and gently pull it apart into fist sized pieces and re-plant immediately. The middle of the original clump should be discarded as this will have lost vigour and become woody.

 

Planting

From Mid Spring TO Mid Autumn

Plant in an open sunny site, in soil that is alkaline toslightly acid, fertile and moisture retentive in spring and summer. A.alpinus, A. amellus, A. x frikarti and A.pyrenaeus 'Lutetia' and A.thomsonii 'Nanus' require alkaline soils and good winter drainage. Plant out autumn flowering asters in mid or late spring and spring flowering asters in mid-autumn or early spring.

 

Flowering

From Mid Spring TO Mid Autumn

Most asters flower in late Summer and Autumn, with Michaelmas daisies being the later flowering varieties. There are some alpine varieties that bloom in Spring

 
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