Outsidepride Apricot Paeony Aster Flower Seed - 1000 Seeds Aster (Callistephus Tall Paeony Duchess Apricot) grows as an annual in USDA Zones: 3 - 9. It does best in full sun to partial shade areas. Callistephus Apricot reaches a height of 28 inches tall, with long stems and large flowers, it is a perfect for flower for your cutting garden or border. This heirloom flower has pink to apricot blooms and is very large with double incurved petals. Sow in well drained soil at 3 - 5 seeds per plant and keep moist until germination occurs. Our seeds are always Non-GMO and packaged for the current year.