Aster 'Tower White'

Tower White Aster (Callistephus chinensis)
With lush, peony-like blooms that captivate at first glance, Tower White aster brings the sumptuous beauty of garden mums and classic peonies into a graceful, easy-to-grow annual. Each bright white blossom, measuring 2 to 3 inches across, is perfectly formed with layers of soft, ruffled petals, creating a full and elegant flower head. Abundant strong stems arise from compact plants, offering a uniform display that brightens garden borders, cottage beds, and floral bouquets with fresh, clean brilliance. The Tower series is prized for its reliable and synchronized bloom time, as well as consistent plant height, making it a dependable choice for both gardeners and florists seeking harmony and charm.

Also known as Michaelmas Daisy and China Aster, Tower White pairs beautifully with soft lavender blooms, pale pink cosmos, and the silvery foliage of dusty miller—combining to create romantic, timeless palettes perfect for rustic garden settings or refined floral designs.

A pristine and classic bloom that lends clean, fresh light and graceful structure wherever it flourishes, adding a touch of elegance and serene beauty to late summer and early autumn gardens.

DETAILS:

QTY: 50

TYPE: Annual

SITE: Full Sun

DEPTH: 1/8"

GERMINATION: 10-14 days at 21-22°C

HEIGHT: 28-32”

MATURITY: 110-120 Days

SPACING: 9-12”

PINCH: Not Necessary

HOW TO GROW:

Transplanting (recommended): Start seeds indoors in trays 6–8 weeks before the last frost. Do not bury seeds deeply; lightly cover with soil or vermiculite, as light aids germination. To avoid displacing the seeds, mist or bottom water gently. Harden off seedlings by gradually exposing them to outdoor conditions for 7–10 days before transplanting outdoors after all danger of frost has passed.

Direct Seeding (alternative): Sow seeds directly outdoors once soil temperatures consistently reach 18–$21°C$. Thin seedlings to a final spacing of 6–12 inches apart, depending on the variety.

Pinching and Support: Pinching isn't strictly necessary for asters, it is a tool you can use to encourage branching and a more abundant harvest of blooms Provide support with stakes, a trellis, or netting, especially for taller varieties.

Soil Preference and Watering: China aster prefers full sun and well-drained soil. Keep the soil consistently moist, especially during germination and establishment. Once mature, water regularly, but avoid overwatering, which can lead to disease.

Fertilizing: China aster is a heavy feeder. Amend the soil with compost before planting. For optimal growth and blooms, fertilize with a balanced liquid fertilizer every 2–4 weeks.

Harvesting: For bouquets, harvest stems when the flowers are about three-quarters of the way open. Cut in the early morning or late evening and immediately place in a vase of water.