Aster Seeds - Tower Yellow

Aster - Tower Yellow

~25 Seeds

Bright, buttery yellow blooms that bring cheerful elegance to any summer bouquet — Aster Tower Yellow is an annual cut-flower variety prized for its exceptionally tall stems, dense petals, and refined shape. Unlike shorter bedding asters, the Tower series is bred specifically for florists and growers who value height, uniformity, and vase longevity.

Each bloom features a fully double, chrysanthemum-style form with silky petals that open gradually, providing an extended cutting window and strong vase presence. Flowers reach over 3 inches across, held atop long, sturdy stems that make harvesting a dream. Ideal for succession sowing, it produces heavily from midsummer into fall and attracts bees and butterflies without becoming unruly in the garden.

A perfect choice for cottage gardens, market bouquets, or elevated backyard arrangements — especially for those wanting a soft yellow that isn’t brassy or neon.

• Attracts bees and butterflies
• Suitable for cut flowers (bouquets)
• Long stems for floral arranging
• Blooms summer through fall

Plant Details

• Latin Name: Callistephus chinensis
• Days to Maturity: 110–120 days
• Height: 28–36 in (70–90 cm)
• Spread: 12–18 in (30–45 cm)
• Sun Exposure: Full sun
• Seed Depth: ⅛ in (3 mm)
• Hardiness Zone: Grown as annual in Zones 2–8
• Germination: 7–14 days at 18–21°C (65–70°F)

Growing Instructions
Start indoors 6–8 weeks before last frost. Sow shallowly — asters need light to germinate. Transplant after danger of frost, spacing 12 inches apart. Prefers rich, well-drained soil and steady moisture. Pinch at 6–8 inches tall to encourage branching and longer stems. Avoid overhead watering to reduce risk of fungal disease.

FAQ
Q: Are Tower Asters good for bouquets?
A: Yes — exceptionally long stems and strong vase life make them florist favourites.

Q: Can I direct sow instead of starting indoors?
A: It’s possible, but indoor starting is strongly recommended for earlier and stronger stems.