Species

Arisaema engleriEngler's Jack-in-the-Pulpit

perennial

Arisaema engleri Green Spathe Form

The Story

Plant Bio

Arisaema engleri, known as Green Spathe Form, is a perennial herbaceous plant distinguished by its striking green spathe that encloses a purple-tinged spadix, complemented by divided, palmately compound leaves.

This cultivar is notable for its unique green spathe form, which provides a fresh and vibrant appearance, making it a distinctive choice among Arisaema species for shaded gardens.

Uses & Benefits:

Adds exotic foliage and structure to shaded gardens, providing year-round interest with its unique form and winter interest.

Prefers moist, well-drained soils, tolerates wet conditions, and thrives in shaded environments.

Provides habitat for beneficial insects and adds biodiversity to shaded woodland gardens.

SpeciesArisaema engleriEngler's Jack-in-the-Pulpit

Essentials

At a Glance

Plant Type

Perennial

Height

12 inches

Width

8 inches

Light

Partial Sun, Shade

Zones

5, 6, 7, 8, 9

Water

Moist

Humidity

High

Lifespan

Perennial

Native To

Asia

Toxicity

Toxic if ingested

Bloom period

Late spring

In flower about 1 month of the year

Planting

How to Grow

Tuck seeds into moist soil in early spring for natural stratification
Keep soil consistently moist during active growth
Provide partial shade in warmer climates to prevent leaf scorch
Mulch around base to retain moisture and suppress weeds
Divide clumps every 3-4 years in early spring or fall
Mist foliage during dry periods to maintain humidity

Pro Tip

Ensure well-draining, moist soil with partial shade for best growth.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Mulch to conserve moisture and regulate soil temperature
Plant in partial shade to protect from harsh sun

Don't

Avoid waterlogging, which can cause root rot ❌
Don’t expose to full sun, especially in hot climates ❌
Do not disturb roots unnecessarily

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Fertilize
Mulch
Plant
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shaded woodland borderMoist underplanting beneath treesUnique focal point in shaded garden

Companion Plants

Hostas Ferns Astilbes Ligularia

Multiply

Propagation Methods

Good to Know

Common Questions

Arisaema engleri Green Spathe Form questions

What zones can Arisaema engleri Green Spathe Form grow in?

Arisaema engleri Green Spathe Form is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Arisaema engleri Green Spathe Form deer resistant?

Not reliably. Deer may browse Arisaema engleri Green Spathe Form, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Arisaema engleri Green Spathe Form bloom?

Arisaema engleri Green Spathe Form typically blooms in late spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Arisaema engleri Green Spathe Form need full sun?

Arisaema engleri Green Spathe Form does best in part shade.