200 Rubenza Cosmos Seeds – Deep Ruby-Red Blooms for Pollinator Gardens

Rubenza Cosmos is a striking annual flower prized for its deep ruby-red blooms that stand out in any garden. These daisy-like flowers rise on slender stems above finely cut, feathery foliage, creating a airy texture that blends beautifully into borders, cottage gardens, and wildflower meadows. The rich color and open form make Rubenza Cosmos a favorite for cut flower arrangements and a valuable resource for pollinators such as bees and butterflies.

Easy to grow from seed, Rubenza Cosmos thrives in full sun and tolerates poor to average soil, making it a reliable choice for gardeners of all experience levels. Its long bloom season from summer to frost provides continuous color and interest. Whether planted en masse or mixed with other annuals, this cosmos adds vibrant, carefree beauty to the landscape.

Plant Features

• Deep ruby-red, daisy-like blooms
• Finely cut, feathery green foliage
• Long bloom season from summer to frost
• Attracts bees and butterflies
• Excellent for cut flowers and borders

Growing Information

• Botanical Name: Cosmos bipinnatus
• Plant Type: Annual
• Sunlight: Full sun
• Soil: Average, well-drained soil
• Water Requirements: Moderate; drought tolerant once established
• Growth Habit: Upright, bushy
• Bloom Season: Summer to fall
• Mature Height: 36-48 inches
• Spacing: 12-18 inches apart

Planting & Care

Sow Rubenza Cosmos seeds directly outdoors after the last frost date, or start indoors 4-6 weeks before transplanting. Press seeds lightly into the soil surface and keep moist until germination, which typically occurs in 7-21 days at 70-75°F (21-24°C). Thin seedlings to stand 12-18 inches apart to allow good air circulation.

Once established, cosmos requires minimal care. Water regularly during dry spells, but avoid overwatering. Deadhead spent flowers to encourage continued blooming. Tall plants may benefit from staking in windy areas. Rubenza Cosmos is generally pest and disease resistant and thrives in poor to average soil without excessive fertilizer.

What's Included

200 Rubenza Cosmos seeds.