Start early
Sow 1/8" deep in 72-cell trays 6–8 weeks ahead at 70–72°F; early plantings give longer stems.
Skip to content
A seed worth growing
Peony-style asters in bright white.
Tower asters look like peonies or garden mums but grow as an easy annual. This one has bright white flowers about 2–3" across, with 13–20 stems per plant.
Bloom time and plant height are very even across the series. Also called summer aster.
Plants grow 32–40" tall and flower about 110–120 days from sowing. Open-pollinated.
In stock — Packet
Know before you sow
Growing times vary with weather, soil and local conditions.
Sow 1/8" deep in 72-cell trays 6–8 weeks ahead at 70–72°F; early plantings give longer stems.
Support with flower netting, and use row cover or insect netting to keep leafhoppers (aster yellows) away.
Set plants 6–12" apart in fertile, well-drained soil; no pinching needed.
For fresh stems, cut as the outer petals begin to open; vase life is about 7–10 days.
About 10–14 days at 70–72°F (21–22°C).
Sow 1/8" deep in 72-cell trays or similar containers 6–8 weeks before planting out. Warm weather and shortening days trigger flowering, so plant early in the season; late plantings give short stems.
Possible once the soil has warmed to 65–70°F (18–21°C).
Run a layer of flower netting over the bed to keep stems straight. Pinching is not needed.
Leafhoppers spread aster yellows, a disease that stunts and deforms the flowers. Covering plants with row cover or insect netting keeps the insects off. Remove and destroy any infected plants, and avoid growing China asters in the same spot year after year.
Full sun.
32–40".
6–12" apart.
Grown as an annual.
For fresh use, cut as the outer ray petals start to open and put the stems straight into water. For drying, wait until the flowers are fully open.
About 7–10 days.
Fertile, well-drained soil, ideally pH 5.5–7.5.
Cut flowers and borders.
Callistephus chinensis
50 seeds.
About 14,200 on average.
We want every packet you buy from Hensley’s Seed Co. to grow well for you.
If anything you order from us doesn’t meet your expectations, just let us know and we’ll replace it or refund what you paid.
Extend your season and sign up for new product releases, expert tips, and timely growing advice.
Offer valid for email subscribers who sign up through this offer. Minimum $50.01 merchandise subtotal. One use per customer. Cannot be combined with other discounts.