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Costus speciosus 'Variegatus', or variegated spiral ginger, is a tropical herbaceous perennial plant, noted for the wonderful spiral shaped stems with sharply variegated leaves. It also has attractive flowers that start out as maroon cones, and blossom into large white crepe flowers. It is a vigorous plant in the right conditions, and can flower in a single season from planting. It likes part shade to a more sunny position. It is best in tropical to sub tropical climates, but can be grown in frost free temperate areas in a warm spot. It can be grown as a container plant, in a large container. It grows from rhizomes.
Costus like a well drained, rich organic soil. They like regular watering and fertilising. They are troubled by few pests and diseases.
Propagation is by division.
Costus speciosus has been mentioned in the Kama Sutra as an ingredient in an eyelash cosmetic.
Flower colour: pink and white
Flowering season: spring summer
Maximum height: 2 metres
Minimum height: 1.5 metres
Maximum width: 2 metres
Minimum width: not specified
Will tolerate partial sunlight.
Light frost tolerance.
Plant is salt tolerant.
Yes. Attracts: Bees, insects, birds.
This plant species will grow in the following climates: subtropical, tropical.
Loam: moist, well-drained.
Clay: moist, well-drained.
Soil pH: 6.0-6.5
Red spider mite
Planting season: Any.
Types of fertiliser: Good general purpose fertiliser.