Green Japanese Jack-In-The-Pulpit

Arisaema triphyllum 'ssp. triphyllum'

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Green Japanese Jack-In-The-Pulpit (Arisaema triphyllum 'ssp. triphyllum') at Chalet Nursery

Arisaema triphyllum ssp. triphyllum

Arisaema triphyllum ssp. triphyllum

(Photo courtesy of NetPS Plant Finder)

Green Japanese Jack-In-The-Pulpit (Arisaema triphyllum 'ssp. triphyllum') at Chalet Nursery

Arisaema triphyllum ssp. triphyllum flowers

Arisaema triphyllum ssp. triphyllum flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height: 8 inches

Flower Height: 16 inches

Spread: 12 inches

Sunlight:  partial shade  full shade 

Hardiness Zone: 5

Other Names: Dragon Root


This familiar woodland plant is usually found near water; the flower is actually a striped green spathe that surrounds and shelters its flower spike; it reaches one to two feet tall by mid spring; an interesting accent planting along shaded walkways

Ornamental Features:

Green Japanese Jack-In-The-Pulpit features solitary light green trumpet-shaped flowers with dark green stripes at the ends of the stems in early summer. It's pointy leaves remain green in color throughout the season. The fruit is not ornamentally significant. The green stems can be quite attractive.

Landscape Attributes:

Green Japanese Jack-In-The-Pulpit is an open herbaceous perennial with an upright spreading habit of growth. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.

This is a relatively low maintenance perennial, and usually looks its best without pruning, although it will tolerate pruning. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Green Japanese Jack-In-The-Pulpit is recommended for the following landscape applications;

  • General Garden Use

Plant Characteristics:

Green Japanese Jack-In-The-Pulpit will grow to be about 8 inches tall at maturity extending to 16 inches tall with the flowers, with a spread of 12 inches. It grows at a slow rate, and under ideal conditions can be expected to live for approximately 5 years.

This perennial does best in partial shade to shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is very fussy about its soil conditions and must have rich, acidic soils to ensure success, and is subject to chlorosis (yellowing) of the leaves in alkaline soils. It is quite intolerant of urban pollution, therefore inner city or urban streetside plantings are best avoided, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in both summer and winter to conserve soil moisture and protect it in exposed locations or colder zones.

This is a selected variety of a species not originally from North America.

Hardiness Zone Plant Height Minimum Sunlight Soil pH Preference
Flowers Plant Form Bark
Ornamental Features
Chalet's Plant Finder is intended to be used for informational purposes only. It does not reflect what is currently in stock at Chalet. We do not sell plants over the internet or ship plants outside of our local delivery area. Please call us at 847-256-0561 ext. 240 for plant availability.