Costus (Aucklandia costus)

Costus

A rare, increasingly endangered perennial herb, costus is cultivated for a variety of purposes, including as a source of perfume oil. Growing at high altitudes, this flowering herb tolerates a variety of soils, as long as they are moist and well-drained. Its flower heads are hemispherical and an unusual shade of purplish gray.

Scientific classification

Species

Costus (Aucklandia costus)

Asters bellflowers fanflowers and allies

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Late spring, Summer

Harvest Time

2 m

Plant Height

1.5 cm

Flower Size

Green, Purple, Brown, Black, Silver

Flower Color

Deciduous

Leaf type

15 - 38 ℃

Ideal Temperature

Images of Costus

Care Guide for Costus

Every week

Water

Full sun

Sunlight

15 - 38 ℃

Ideal Temperature

Water: Originating from moist, shaded areas, costus requires consistent humidity and regular moisture without waterlogging. Weekly watering is ideal. Indoors, costus thrives in higher humidity and well-draining soil, making it suitable for bathrooms where steam can replicate its tropical origins.

Fertilize: Fertilizing costus with balanced nutrition enhances growth and flowering. Use diluted liquid fertilizer bi-weekly in spring/summer, monthly in fall, and pause in winter. Avoid over-fertilizing, ensure moist soil before application, and adjust feeding based on the plant's life stage for optimal health.

Pruning: Costus thrives with early spring pruning to enhance growth and blooming. Remove dead or damaged stems and thin crowded areas for better light. Use clean, sharp tools to prevent disease and trim above nodes to encourage new shoots, ensuring a lush, healthy plant.

Propagation: Costus is a perennial herb known for its aromatic roots, used in herbal medicine. Propagation is through fresh seeds sown in well-draining soil, requiring consistent moisture. Seedlings need careful light and temperature management, and once established, should be transplanted with adequate spacing.

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