Sensation White
60d to harvest
Purest cloud-white blooms with a luminous, velvety center—Sensation White Cosmos turns sunlight into a soft halo from early summer through the first cool days. Each airy, daisy-like flower carries a crisp, paper-thin petal texture that moves beautifully in the breeze, while the finely divided foliage forms a delicate, fernlike backdrop. Ideal for pollinator-friendly gardens, it shines in mass plantings, borders, and cut-flower displays where its clean color and long-lasting bloom rhythm are the main attraction.
Crop Dates
Growing note: In frost-free Zone 10b, grow this cool-season crop during the cooler dry season (October–February).
| Milestone | Date |
|---|---|
| Start Indoors | — |
| Climate | Frost-Free Climate |
| Transplant / Sow Outdoors | Oct 1st |
| Harvest Begins | Nov 30th |
| Harvest Ends | Feb 28th |
Crop Details
| Trait | Value |
|---|---|
| Days to Maturity | 60 |
| Sun Requirements | Full Sun |
| Growth Habit | Upright |
| Support Needed | None |
| Planting Depth | Normal |
| Germination Temp (°F) | 75 |
| Min Soil Temp (°F) | 60 |
| Min Night Temp (°F) | 50 |
| Harden Off (days) | 7 |
Recommended Companions
Frequently Asked Questions
How often should I water Cosmos bipinnatus during the main growing phase?
During active growth and flowering, water deeply about 1–2 times per week, letting the top 1 inch of soil dry between waterings. Cosmos tolerate some drought once established, so avoid keeping the soil constantly wet. If plants wilt in the heat but recover by evening, water thoroughly rather than lightly and frequently.
How can I tell when Cosmos bipinnatus (Sensation White) is ready to harvest?
Harvest for fresh cut flowers when the ray florets are fully open and the center disk is mature but not yet browning. For seed, leave heads on the plant until the flower heads dry and turn tan/brown; then cut when seeds feel firm. At about 60 days from sowing, many plants will be in the first bloom window for cut flowers under full sun.