Jack-in-the-pulpit
Arisaema triphyllum 'Black Jack'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
18 inches
Width
12 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8, 9
Water
Moist
Humidity
High
Lifespan
Perennial
Native To
North America
Toxicity
High
The Story
Plant Bio
Arisaema triphyllum, commonly known as Jack-in-the-pulpit, is a perennial woodland plant distinguished by its trifoliate leaves and hooded spathe that encloses a spadix, typically displaying green and purple hues. The 'Black Jack' cultivar features striking, dark almost black foliage that provides a dramatic contrast in shaded gardens and enhances its ornamental appeal.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Choose a shaded spot with moist, well-drained soil.
- Tuck bulbs 4-6 inches deep in fall or early spring.
- Water regularly to keep soil moist but not waterlogged.
- Mulch around the plant to retain moisture and regulate temperature.
- Mist cuttings or divide in early spring for propagation.
- Allow foliage to die back naturally in late summer.
Pro Tip
Plant bulbs in fall for best spring bloom; ensure soil stays moist.
Keep It Thriving
Care Guide
Do
- Water consistently to keep soil moist 🌱
- Apply mulch to conserve moisture
- Dividing bulbs every 3-4 years for healthy growth
Don't
- Avoid overwatering to prevent bulb rot ❌
- Do not expose to direct, harsh sunlight
- Do not disturb dormant bulbs in winter
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Mulch | ||||||||||||
| Plant | ||||||||||||
| Propagate | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Jack-in-the-pulpit questions
What zones can Jack-in-the-pulpit grow in?
Jack-in-the-pulpit is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Jack-in-the-pulpit deer resistant?
Yes — Jack-in-the-pulpit is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Jack-in-the-pulpit bloom?
Jack-in-the-pulpit 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 Jack-in-the-pulpit need full sun?
Jack-in-the-pulpit does best in part shade.
More Arisaema to compare
Japanese Cobra Lily
Arisaema ovale
Jack-in-the-pulpit
Arisaema triphyllum
Japanese Cobra Lily
Arisaema kiushianum
Himalayan Cobra Lily
Arisaema consanguineum
Arisaema engleri Green Spathe Form
Arisaema engleri 'Green Spathe Form'
Japanese Cobra Lily
Arisaema serratum 'Mt Fuji Form'
Keep exploring
Explore the genus
Collections featuring this plant
Grow Jack-in-the-pulpit with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
