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Purple Aster Flower


Purple Aster Flower

Aster


This is a large genus, the type form for the daisy (Asteraceae) family and consist of over 250 species mostly from the northern temperate zones, with a toehold in South America. Most of all they are herbaceous perennials but also include annuals, biennials, and a few rather shrubby species. While some, usually the alpines, form low clumps, most have erect stems topped with massed compound flower heads.
The leaves are simple, linear, sometimes with toothed edges and lance or spatula-shaped. The flowering period continuous from summer to mid-autumn, the dominant colors are: pink, mauve, and purple. Asters are also known as Michaelmas daisies. The Asters are named so because of the flower head’s shape, and is translated from Latin as “star”.


Top Tip

When dividing
asters, discard the
older middle section
and replant
sections from the
outer part of the
clump to achieve
strong new growth.

Cultivation


The most of Asters can survive in cold and frosty times; they prefer a full sun position with moist well-drained soil. Good air circulation is needed in order to prevent mildew developing. Deadheads need to be removed in order to encourage flowering. They can propagate by division during dormant or from spring basal cuttings.


Name

Flower color

Blooming Season

Flower Fragrance

Plant Height

Plant Width

Hardiness Zone

Frost Tolerance

Aster ericoides

White, blue, pink

Summer to summer

No

30-40 in
75-100 cm

20-30 in
50-75 cm

3-9

Yes

Aster frikartii

Violet-blue

Late summer to early autumn

No

 

20-30 in
50-75 cm

15-24 in
38-60 cm

5-9

Yes

Aster novae-angliae

Violet to purple

Late summer to early autumn

No

4-5 ft
1.2-1.5 m

2-4ft
0.6-1.2 m

4-9

Yes

Aster novae-angliae ‘Andenken an Alma Potske’

Cerise-pink

Late summer to early autumn

No

4ft
1.2 m

2ft
0.6 m

4-9

Yes

Aster novi-belgii

Violet to purple

Late summer to early autumn

No

4ft
1.2 m

3ft
0.9m

4-9

Yes

Aster sedifolius

White to pale blue

 

No

36 in
90 cm

20 in
50 cm

7-9

Yes