Cosmos Rubenza (Cosmos bipinnatus 'Rubenza') is a dwarf, annual flower with dark red blooms that fade to a deep rose color. It's a low-maintenance plant that's easy to grow and attracts butterflies and other pollinators. Features: Color: Deep ruby red flowers that fade to a deep rose color Size: Grows up to 20 in tall and 30 in wide Bloom time: Blooms from early summer to fall Maintenance: Low maintenance and fairly pest-free Soil: Prefers average, moist, well-drained soil Sunlight: Performs best in full sun Uses: Great for sunny borders, mixed garden beds, vegetable patches, containers, cottage gardens, prairies, and meadows Can be used as a cut flower Benefits: Attracts butterflies and other pollinators and Supports insects that prey on garden pests.