Southwestern cosmos (Cosmos parviflorus)

Southwestern cosmos

Southwestern cosmos is a charming wildflower with a delicate, airy appearance, featuring small, daisy-like flowers with yellow centers. Its fine-textured leaves and slender stems sway gracefully in native prairies and arid landscapes, hinting at its adaptability to dry conditions. The plant's vivid flush of summer blooms attract pollinators, making it not only a feast for the eyes but also a contributor to local ecosystems.

Scientific classification

Species

Southwestern cosmos (Cosmos parviflorus)

Asters bellflowers fanflowers and allies

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Annual

Lifespan

30 cm to 91 cm

Plant Height

20 - 38 ℃

Ideal Temperature

Images of Southwestern cosmos

Care Guide for Southwestern cosmos

Twice per week

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Water: Southwestern cosmos requires adequate watering during the seedling stage for robust growth. As it matures, its water needs decrease, relying on natural rainfall. Only water during prolonged droughts, as excessive watering can lead to soggy soil and root rot.

Fertilize: Southwestern cosmos requires minimal fertilization; over-fertilizing may lead to leggy growth and reduced blooms. A small amount of balanced fertilizer (N-P-K = 20-20-20) can support seedlings. After flowering, stop fertilizing, as southwestern cosmos needs few nutrients during this period.

Pruning: Southwestern cosmos features delicate flowers and fine foliage. Prune in early to late spring to promote new growth and remove damaged stems. Light post-flowering trimming can extend blooms. Regular pruning improves air circulation and sunlight exposure, ensuring vigorous growth and abundant flowering.

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