Rubenza cosmos
Cosmos bipinnatus 'Rubenza'
RHS AGM 2016
USDA zones2 to 11
SunHandles full sun to partial sun
WaterHandles dry to moist soil
Size12 to 24 inches tall
- Growth rate
- Rapid
- Habit
- Clumping
- Bloom season
- Spring, summer, autumn
- Bloom color
- Rose
- Soil types
- Sand, loam, clay, chalk
- Soil pH
- Acid, alkaline, neutral
Garden uses
Attracts
Notes
'Rubenza' cosmos (Cosmos bipinnatus 'Rubenza') is an annual for borders, cut flowers, pollinator gardens, and containers. It is not cold-hardy and will not survive freezing temperatures. This plant likes full or part sun and dry to moist soil of most types. It grows fast into a clumping mound of rose blooms that attract butterflies, hummingbirds, bees, and birds. Deer rarely make it their first choice. Its drought tolerance makes it easy to keep.
Pairs well with Snow on the mountain, Common flax, and Red fescue.