50 Fresh Seeds Single Mix Aster Flower Grow China Aster, Single Mixture from fresh Callistephus chinensis flower seeds. Single Mixture will produce beautiful, single layered blooms, in shades of pink, purple, rose, white violet. The flowers are roughly 4 inches in diameter and are accented with a beautiful, bright yellow center. China Aster, Single Mixture plants grow to a mature height of 12 to 36 inches tall, baring fairly long slender stems, making it perfect for use as a cut flower. Use in floral arrangements and bouquets. Grown as an annual flowering plant, China Asters will grow quickly, bloom profusely, later dying with the first killing frost. The beautiful blooms won't only attract onlookers, it also attracts an array of beneficial insects as well. Butterflies and bumblebees will cling to these colorful flowers as the blossom into the fall months of October and November. Seeds can be collected from your flowers as the season comes to an end allowing you to regrow fresh China Asters the year after. China Asters can get a bit of height on them so they are best sown as a background plant. Sow them along borders, such as driveways, fences, walkways and flower beds. They can also be sown by the masses for an explosion of delightful flowers all summer long. Type: Flower. Color: Mix. Height: 12" to 36" Tall. Season: Annual. Zones: 3 to 9. Environment: Full Sun.