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2025 Seed Catalog

Aster Alpine Trimix - Aster alpinus

PR00725

Trimix

Alpine Aster Seeds

Aster alpinus

Trimix alpine aster includes flowers in shades of soft blue, lavender, pink, rose, and white. Mounding 6-12 in. tall plants carry beautiful 1.5-2.5 in. flowers in late spring and summer. A delightful perennial to place at the front of borders, or in rock gardens. Plants prefer part shade, are winter hardy to zone 4. Performance is best in climates with cold winters. Grow Trimix alpine aster with lady's mantle, and spiderwort.

50 seeds - $3.75
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View all of our Aster varieties.

Growing Trimix Aster Seeds

Bee introduces how to plant

Sow perennial aster seed in cell packs or flats, press into soil, barely cover. Needs light to germinate. Kept at 65-75°F., germination is in 14-28 days. Transplant seedlings into the garden 12 in. apart for the alpine asters, and 18-24 in. apart for the New York asters.

Shipping Information

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Free shipping on U.S. orders over $65.00.
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Standard U.S. shipping is $5.99.
Priority U.S. shipping is $9.99.


International Shipping Rates

Shipping to Canada is $13.99.
International shipping to all other countries is $15.99.

Satisfaction Guarantee

We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.