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Impatiens namchabarwensis (Sapphire jewelweed, Blue diamond impatiens)

Impatiens namchabarwensis Photo/Illustration: Derick Pitman


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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11
Botanical Name: Impatiens namchabarwensis im-PAY-shenz nam-chah-bar-WEN-sis Common Name: Sapphire jewelweed, Blue diamond impatiens Genus: Impatiens
Sapphire jewelweed's serrated leaves are the color of polished jade, while the flowers are a remarkable sapphire blue. Far different from the traditional flat-disk shape of most bedding impatiens, the flower shape of this impatiens resembles an elegant crane in flight. Sapphire jewelweed grows remarkably fast, reaching almost 2 feet tall and wide. It shines in a woodland garden.
Noteworthy characteristics: Self-sows, sometimes prolifically. Discovered in 2003 in the Namcha Barwa Canyon in Tibet.
Care: This impatiens is very adaptable and will survive in hot areas of the country when grown in full shade; otherwise, it is happy in partial shade with rich, well-drained soil and regular watering. It may survive in a sheltered Zone 9 location as long as it is not hit by a killing frost.
Propagation: It is best to start with fresh seed sown in a pot and provide them with a season of stratification (damp, dark, and cool conditions). Or, take cuttings and overwinter as houseplants.
Height 1 ft. to 3 ft.
Spread 1 ft. to 3 ft.
Growth Pace Fast Grower
Light Part Shade to Full Shade
Moisture Medium Moisture
Maintenance Low
Characteristics Self Seeds; Showy Flowers
Bloom Time Early Summer; Late Summer; Summer
Foliage Color Evergreen
Flower Color Blue Flower
Uses Beds and Borders, Suitable as Annual
Style Woodland Garden
Seasonal Interest Summer Interest
Type Perennials

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