Xanthos
Feathery, airy blooms rise like warm sparks above the garden—Xanthos Cosmos opens into luminous, petal-rich flowers that sway with every breath of wind. Expect a delicate, satiny texture and a vivid, show-stopping presence that holds its charm in arrangements, making it a favorite for long-lasting cut stems. Grow Xanthos for a breezy, cloudlike display that turns beds and borders into living color from early summer through fall.
Crop Dates
| Milestone | Date |
|---|---|
| Start Indoors | — |
| Climate | Frost-Free Climate |
| Transplant / Sow Outdoors | Oct 1st |
| Harvest Begins | Nov 25th |
| Harvest Ends | Feb 28th |
Crop Details
| Trait | Value |
|---|---|
| Days to Maturity | 55 |
| Sun Requirements | Full Sun |
| Growth Habit | Upright |
| Support Needed | None |
| Planting Depth | Normal |
| Germination Temp (°F) | 70 |
| Min Soil Temp (°F) | 55 |
| Min Night Temp (°F) | 45 |
| Harden Off (days) | 7 |
Recommended Companions
Frequently Asked Questions
How often should I water Cosmos bipinnatus during peak growth?
How can I tell when Cosmos bipinnatus is ready to harvest?
Feathery, airy blooms rise like warm sparks above the garden—Xanthos Cosmos opens into luminous, petal-rich flowers that sway with every breath of wind. Expect a delicate, satiny texture and a vivid, show-stopping presence that holds its charm in arrangements, making it a favorite for long-lasting cut stems. Grow Xanthos for a breezy, cloudlike display that turns beds and borders into living color from early summer through fall.
Sowing Tips
Soil Temperature
Direct sow or transplant when soil at planting depth holds 55°F for reliable germination and early growth.
Expert Note
For best compact, early blooms, grow in full sun and avoid nitrogen-heavy fertilizer once plants are established.