Plants from the genus Callistephus are half or full hardy annuals.
Excellent, richly flowering annual for cutting. Large, double and full flowers. Long lasting on the plant.
Upright steady plant grows up to 70 cm in tall.
Flowers appears from July to October.
In the garden these plants look great as part of a border; they are also used often as a cut flower in arrangements.
Genus - Callistephus
Species - Chinensis
Variety - Tall mix
Common name - Summer Aster
Pre-Treatment - Not-required
Plant type - Annual Flower
Hardiness zones - 3 - 10
Exposure - Full Sun, partial shade
Height - 0.60 - 0.70 m
Spread - 0.25 m
Growth rate - Fast
Bloom season - July - October
Leaf / Flower color - Green / mix
Soil PH - Mildly acid to neutral (pH 5.5-7)
Soil type - Rich, well drained
Water requirements - Regular light watering
Landscape uses - In the garden these plants look great as part of a border; they are also used often as a cut flower in arrangements.
Seeds should be lightly covered once sown. Sow in the spring, following the last frost.
If you plan to grow China Aster as seedlings indoors for later transplanting then they should be germinated at a temperature of +18-21C for two weeks. Seeds should be sown in peat pots in a vermiculite mix and water supplied from below.
After about seven or eight weeks the seedlings can be planted in the garden in an area of partial shade or full sun with a spacing of 30-50cm.
They prefer to grow in a rich soil that has good drainage and a pH of 6 to 7.
Info source: http://www.gardenershq.com
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