Japanese jack-in-the-pulpit (Arisaema sikokianum)

Japanese jack-in-the-pulpit

Japanese jack-in-the-pulpit (Arisaema sikokianum) is a Japanese tuberous perennial plant with dark green foliage. Gorgeous trillium-like leaves look like an umbrella beside the attractive dark purple spathe. This plant can be placed in grown in woodland or cottage gardens. It can also be used as an understory shrub.

Scientific classification

Species

Japanese jack-in-the-pulpit (Arisaema sikokianum)

Water plantains and allies

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Perennial

Lifespan

Herb

Plant Type

Spring

Bloom Time

Early fall, Mid fall

Harvest Time

46 cm to 61 cm

Plant Height

Purple, White

Flower Color

Green, Red, White, Purple

Stem Color

Deciduous

Leaf type

5 - 35 ℃

Ideal Temperature

Distribution of Japanese jack-in-the-pulpit

Distribution Map

Japanese jack-in-the-pulpit is indigenous to temperate regions of East Asia. It thrives naturally in forested areas within this major region. Beyond its native range, japanese jack-in-the-pulpit has been introduced and is now cultivated in various parts of the world, thriving in gardens and collections where its unique appearance is valued.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

In moist, shaded areas on the Island.

Care Guide for Japanese jack-in-the-pulpit

Every week

Water

Partial sun

Sunlight

5 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Japanese jack-in-the-pulpit thrives in moist woodland environments, preferring evenly moist soil and tolerating brief dry spells. It should be watered weekly and flourishes in dappled shade, making it ideal for indoor spaces with consistent humidity and indirect light.

Fertilize: Japanese jack-in-the-pulpit requires balanced nutrition via 10-10-10 fertilizers monthly during the growing season. Switch to high phosphorus formulas pre-bloom, and use slow-release granules to prevent root burn. Reduce feeding in winter and avoid contact with stems and leaves for optimal growth and flowering.

Pruning: Prune japanese jack-in-the-pulpit in early to late spring to remove damaged foliage and encourage new growth. Trim spent flowers to prevent seed formation and improve energy conservation. Sterilize tools to avoid disease, enhancing air circulation and light penetration for better development. Follow these tips for a healthy, attractive japanese jack-in-the-pulpit.

Propagation: Japanese jack-in-the-pulpit is a perennial from woodlands, known for its unique flowers and foliage. Propagate by sowing fresh seeds and acclimate seedlings outdoors post-germination. Maintain proper moisture levels to avoid waterlogging or dryness, ensuring optimal growth conditions for a thriving japanese jack-in-the-pulpit.

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