Avg seeds/pkt 90
Cosmos are late-Summer annuals that pink-up just as most other summer blooms are starting to fade. A great cutting flower, ‘Gloria’ cosmos grow up to 5 feet tall, making them useful when naturalized with wildflowers, or massed at the back of the border. Grow them with Cleome, another tall, showy late bloomer attractive to Hummingbirds.
Cosmos prefer poor to average soil. For earliest blooms, start indoors 4 to 6 weeks before your last average frost date, or sow seeds into a sunny location in the garden at 6-inch intervals, after danger of frost has passed. Cover seeds with a 1/4 inch of soil and water regularly until seedlings emerge within 14 days.
Transplant indoor starts in late spring 2 weeks after the last frost date. Seedlings should be thinned or spaced at 12 to 18 inch intervals. Water sparingly, only when the feathery foliage begins to wilt. Deadhead spent flowers regularly to keep them coming. Gloria cosmos bloom continuously until and even after a hard frost. When seed heads are left on the plant, cosmos may self-sow but rarely to the point of invasiveness.
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