Sulphur Cosmos grows tall plants with beautiful, 2-2.5″ bright orange flowers. Very hardy and drought tolerant. Excellent choice for cut flower arrangements. You can also cut a day before blooming for the flowers to open in vase. Cosmos is great as an insectary as well.
Our current seed stock was grown by Lindsay Klaunig of Trouvaille Farm in Athens, OH. Photo by Lindsay Klaunig.
Packet has 0.5 gr of seeds (50-55 seeds)
- Full sun
- Planting depth: 1/8"
- Sprouts in 10-14 days
- Ideal Growing Temperature: 75-90F
- Plant Spacing: 8-12"
- Frost hardy: No
- Growth habit: Tall plants with a bounty of flowers
- Cosmos sulphureus
- Growing tips: Start indoors 4-6 weeks before last frost or direct-seed after last frost. 70-75F is the ideal temperature range for seed germination. Deadhead to prolong flowering.
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