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Image courtesy of Marits hagedagbok

This stunning perennial forms a clump of narrow, grey-green leaves; very deep purple, almost black, yellow-veined flowers rise on tall stems; excellent cut flower; deer resistant; drought tolerant once established.

flowers rise on tall stems; excellent cut flowers

Striking accent and specimen; elegant in containers, mass plantings, cottage and water-wise gardens

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Iris chrysographes black form


(Black Iris)

Growing

Requirements

Zone

3 (-40°F/-40°C)

Exposure

Full sun to partial shade

Form

Foliage Height

18" (46 cm)

Width

20" (51 cm)

Flower Height

20" (51 cm)

Flower Colour

very deep purple, almost black, yellow-veined flowers

Bloom Time

June-July

Watering Needs

Moderate-Low. Drought tolerant once established

Soil Preferences

Tolerates a wide range of soil types

Plant Care Tips

To get the most out of your Japanese Iris, make sure that you keep the plant well-watered, particularly in spring, while it is setting its blooms. The Canadian Iris Society suggests "wet in spring, moist in summer" for best results during the present season and the next year. Japanese Irises grow best in rich soil that has a lot of organic material and is slightly acidic. Mulch heavily to conserve moisture and keep the soil cooler. Remove old foliage after the first frost. Apply fertilizer once during spring and again after the blooming period is over. Divide every 3-4 years or when the bloom size or plant height decline. You can transplant Japanese Irises anytime between spring and fall as long as you keep the new plants watered.

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