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2019 Seed Catalog

Psyche White cosmos seeds
Best Seller

AN09331

Psyche White

Cosmos Seeds

Extraordinary lush, bushy and branching 4-5 ft. tall plants are covered in pure-white, frilled and scalloped, single and semi-double, 3-4 in. flowers. Psyche White is one of the most beautiful cosmos we have grown to date.

200 seeds - $2.99
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Growing Psyche White Cosmos Seeds

Bee introduces how to plant

Sow Cosmos: Sow cosmos seeds in cell packs or flats, 4 to 6 weeks before transplanting into the garden. Kept at 70 to 85° F., seedlings emerge in 7 to 21 days. Can direct sow cosmos after all danger of frost into prepared seed beds in rows, 4-6 seeds per foot. Thin seedlings to 18 inches apart. A less efficient but easier method of sowing cosmos: scatter seeds. Rake seeds into soil, keep area moist until germination.

Grow Cosmos: Full sun. Best flower production is in soils of average fertility with moderate water. Cosmos tolerate heat, drought, and poor soil. Remove spent blooms to promote additional flowers. Cosmos will usually self-sow if some spent blossoms are kept on plants. Cut flowers typically last 5 to 9 days when blooms are cut as petals unfold. Flowers fully open in vase. Cosmos attract birds, bees and butterflies and are rarely bothered by pests or disease.

Dig Deeper: Tip to bring your cosmos plants into bloom up to 3 weeks earlier when growing under fluorescent lights: once seedlings have emerged provide 11 hours per day of artificial light. Keep seedlings in complete darkness for the remaining 13 hours. After 2 weeks, keep the lights on for 14 or more hours per day.

Shipping Information

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Free priority shipping on U.S. orders over $125.00.

Standard U.S. shipping is $5.95.
Priority U.S. shipping is $9.95.


International Shipping Rates

Shipping to Canada is $9.95.
International shipping to all other countries is $14.95.

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 replacement packets or issue a refund.