Organic Cosmos 'Sulfur'
Organic Cosmos 'Sulfur' (Cosmos sulphureus) from the seed company Gaia, a bright and resistant variety with orange-red flowers
Cosmos 'Sulfur' forms compact to semi-upright plants with finely cut, medium-green foliage , offering a light texture that highlights the intense color of its flowers. The single flowers, held above the foliage, display a striking deep orange-red , particularly vibrant in full sun. Their open shape facilitates access to nectar, making it a popular choice for bumblebees, beneficial insects, and pollinating birds .
This annual variety, capable of self-seeding , is known for its high drought tolerance once established. It integrates naturally into wildflower meadows , sunny gardens, and mixed borders, while also providing excellent cut flowers thanks to the longevity and vibrancy of its colors.
Companion plants: Tomato, Beetroot, Cucumber, Legumes, Squash
Spread/carry: Compact to semi-upright
Plant height: 30 to 90 cm
Quantity per packet: 30 seeds
Certification: Environmentally friendly product
Special features: Intense orange-red flowers, drought-tolerant, attracts pollinators, ideal for wildflower meadows, self-seeds
Leaf color: Medium green
Texture/Floral Habit: Simple, open flowers, flexible stems
Cold tolerance: Sensitive to frost
Farming method
Sow the seeds 0.3 cm deep , either indoors in early spring or directly outdoors once all risk of frost has passed . Space the plants 30 to 45 cm apart and the rows 45 to 60 cm apart , in light, well-drained soil , even poor soil, to encourage abundant and long-lasting flowering.
Cosmos prefers full sun (level 3) and moderate watering (level 2) . Once well established, it tolerates dry periods well and requires little maintenance.
Maintenance and flowering
Regularly remove faded flowers to encourage continuous blooming. Successive plantings extend the flowering period. At the end of the season, allowing a few flowers to go to seed promotes natural reseeding .
Usage ideas
• Flowering meadows and naturalistic gardens
• Sunny edges at the front or center
• Massifs favorable to pollinators
• Cut flowers in warm hues
• Drought-resistant ornamental vegetable gardens
The cosmos 'Sulfur' brings a bright and warm energy to the garden, while offering remarkable hardiness in the face of heat and drought. It is an expressive variety, easy to grow, that energizes sunny and vibrant spaces.
