Flower / Warm season
Sensation Mix Cosmos
Tall annual pollinator strips and cutting rows.
Grown for flowers, not culinary harvest.
Seed spacing and maturity
- Days to maturity
- 75
- Germination temperature
- 65-85F
- Seed depth
- 0.25 inches
- Spacing
- 12 inches
- Row spacing
- 18 inches
- Start method
- Direct sow
Frost-date timing
- Direct sow
- 7 days after last frost
- Succession interval
- repeat every 28 days
Action plan
- Can I plant this now?
- Use your local last-frost, first-frost, and soil-temperature checks before treating this crop as plantable today.
- Start indoors or direct sow?
- Direct sow into the final bed when the soil temperature, seed depth, and moisture are ready.
- How much space?
- 12 inches in-row spacing, 18 inches between rows, and 0.25 inch seed depth.
- Best companions?
- Use this as part of a diverse flowering or herb planting, and treat companion claims as site-specific rather than guaranteed pest control.
- Common failure modes?
- Rich soil produces leafy plants with fewer flowers. Low to moderate water after establishment. Average to lean, well-drained soil.
Growing profile
- Sun
- Full sun
- Water
- Low to moderate water after establishment.
- Soil
- Average to lean, well-drained soil.
- Watch
- Rich soil produces leafy plants with fewer flowers.
- cut-flowers
- pollinators
- low-fertility
- annual
Browse context
- Flower Catalog Category collection
- Aster Family Rotation and family context
- Warm Season Seeds Season collection
- Direct Sow Seeds Start-method collection
- Beginner-Friendly Seeds Practical trait collection
- High Pollinator Value Seeds Practical trait collection
- Succession Sowing Seeds Practical trait collection
Related varieties
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- California Giant Zinnia Aster family · Warm season · 75 days
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- California Wonder Pepper Nightshade family · Warm season · 72 days
- Black Beauty Eggplant Nightshade family · Warm season · 80 days
- Common Lemon Balm Mint family · Warm season · 70 days
Source: Seed Savers seed saving guide