Garden cosmos 'Rubinato' (Cosmos bipinnatus 'Rubinato')

Garden cosmos 'Rubinato'

Also known as: Annual cosmos 'Rubinato'

Garden cosmos 'Rubinato' is a dwarf cultivar of Garden cosmos, reaching only 61 cm instead of 1.8 m. While most varieties of this species have blooms that are pink, violet, or white, the flowers of this cultivar are a deep ruby red (hence the name). Gardeners love this cultivar for its color and well-branched habit.

Scientific classification

Asters bellflowers fanflowers and allies

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Annual

Lifespan

Herb

Plant Type

70 cm

Plant Height

40 cm

Spread

Green

Leaf Color

7 cm

Flower Size

Yellow, Red, Pink

Flower Color

Care Guide for Garden cosmos 'Rubinato'

Twice per week

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Water: Garden cosmos 'Rubinato' originates from Mexico's scrub and meadowlands, preferring semi-arid conditions with moderate moisture. Watering should be twice a week. Primarily grown outdoors, garden cosmos 'Rubinato' blooms annually, with vibrant displays reliant on consistent watering throughout the growing season.

Fertilize: For optimal growth, garden cosmos 'Rubinato' requires monthly feeding with balanced fertilizer during the growing season. Start with high-nitrogen for foliage, but avoid excess to maintain blooming. Adjust feeding in fall and ensure nutrients reach the roots gently for robust health and vibrant displays.

Pruning: Garden cosmos 'Rubinato' is an annual with feathery leaves and vibrant flowers. Prune in early to late spring to encourage bushier growth, removing up to one-third of its height. Regular deadheading prolongs blooms and prevents disease, while avoiding over-pruning is crucial to prevent stress.

Propagation: Garden cosmos 'Rubinato' features vibrant, feathery foliage and can be easily propagated by sowing seeds in well-draining soil. Maintain consistent moisture to avoid waterlogging, with germination occurring in 7-14 days under ideal warmth and light. Thinning seedlings may be required for proper growth.

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