FoliageIn the landscape
Data sources
Cosmos
Cosmos bipinnatus
Cosmos is a fast-growing perennial, hardy in USDA zones 2-11, that matures to about 1-4 ft × 2-3 ft. It does best in full sun with medium water needs in well-drained and occasionally-dry soil. Expect yellow, pink and purple blooms in summer. It attracts bees, butterflies and pollinators, stands up well to deer, drought and dry soil, grows happily in containers.
- USDA zones
- 2-11
- Sun
- Full sun
- Water
- Medium
- Mature size
- 1-4 ft × 2-3 ft
- Growth rate
- Fast
- Maintenance
- Low
- Soil
- Well-drained, Occasionally-dry
- Bloom color
- Yellow, Pink, Purple, White
- Bloom season
- Summer
- Attracts
- Bees, Butterflies, Pollinators
- Tough against
- Deer, Drought, Dry soil, Heat, Poor soil
- Native to
- Mexico, southern United States
Freeze survival
Will it survive your winters?
We score Cosmos’s freeze-trouble range against the real coldest nights your area has recorded.
Powered by ~35 years of daily lows from the nearest NOAA weather station. A risk read, not a guarantee — a sheltered spot or mature plant beats the odds.
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