In varying hues of yellow and orange, some even a bright red, Sulphur Cosmos are a double petaled relative of the common wildflower. While the plants themselves can grow up to 7 feet most stay around 3- 4 feet tall. The blooms are 2" - 3" inches across and tend to exhibit a high density of proliferation creating a wave of color. Easy to grow and a prolific re-seeder, Sulphur Cosmos are resilient and versatile, blooming throughout summer and fall in most climates.
Butterflies, moths and numerous bee species collect the pollen from these flowers.
Full sun, very drought tolerant once established.
Sow your Cosmos seeds in the full sun to partial shade. Cosmos are very adaptable, they can thrive in average to poor soil. Scatter cosmos seeds outdoors after there is no longer a danger of frost. Seeds can be covered ¼ inch since they do not need light to germinate. Germination will usually occur in just 3 to 5 days, but it can take up to 2 weeks.
Once started, cosmoses require virtually no attention. You can add a general purpose fertilizer once or twice a season. If a plant grows very tall and is not planted in a wind protected area, it may require staking. If you want blooms all summer long, dead head the old blooms.
4 grams per package will cover approximately 175 SF.
Big Creek Lavender Farm is a Certified Wildlife Habitat by the NWF. We grow plants to help the pollinators thrive, provide water and brush cover for all critters that visit us on the farm.