Aster Duchesse Red Seeds

Callistephus chinensis Aster Duchesse Red Seeds

The Duchesse series of asters is renowned for its bold, incurved petals that resemble chrysanthemums. The Red variety delivers striking, deep scarlet blooms that bring a dramatic splash of colour to summer and autumn borders.

Plants are upright and branching, typically reaching 70–80 cm in height, with strong stems that hold the large blooms well. Their long flowering season and elegant form make them a favourite for both garden display and floral arrangements.

 

Seed Qty Approx 0.5 grams

 

Sow March to April indoors, or May outdoors after frost

Germination 10 to 21 days at 20 to 25°C

Soil and Position Fertile, well drained soil in full sun or part shade

Height/Spread 70 to 80 cm tall, 25 to 35 cm spread

Flowering July to October

 

Sowing Instructions

 

Sow seeds thinly in trays of moist compost and cover lightly with vermiculite or fine soil. Keep at 20 to 25°C until germination. Transplant seedlings into individual pots when large enough to handle. Harden off and plant outdoors after the last frost, spacing 25 to 30 cm apart.

 

Grow and Maintenance

 

Asters prefer fertile, well drained soil and a sunny position. Water regularly during dry spells and feed with a balanced fertiliser to encourage strong growth. Deadhead spent blooms to prolong flowering. To reduce the risk of aster wilt, rotate planting sites each year.

 

Uses and Benefits

 

Large chrysanthemum?like blooms in vivid red

Excellent for borders, bedding, and cutting gardens

Long flowering season from midsummer to autumn

Strong stems ideal for floral arrangements

Attractive to bees and butterflies