1 named cultivar
The Story
Plant Bio
Arisaema triphyllum, commonly known as Jack-in-the-Pulpit, is a perennial woodland plant with trifoliate leaves and distinctive hooded flowers that emerge from a spathe and spadix structure, typically in shades of green and purple.
This species is valued for its unique flower form and its ability to thrive in shaded, woodland environments, making it a popular choice for naturalistic shade gardens.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
18 inches
Width
18 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8, 9
Water
Medium to wet
Humidity
Average
Lifespan
Perennial
Native To
Eastern North America
Toxicity
Toxic if ingested
Planting
How to Grow
- Tuck corms 4 inches deep in well-draining soil
- Water regularly to keep soil moist but not waterlogged
- Mulch to retain moisture and regulate soil temperature
- Plant in partial to full shade for best growth
- Fertilize with a balanced slow-release fertilizer in early spring
- Allow foliage to die back naturally in late fall
Pro Tip
Plant corms in early spring for vibrant foliage and flowers
Keep It Thriving
Care Guide
Do
- Water consistently during growing season 🌱
- Mulch to protect roots and conserve moisture
- Monitor for pests like slugs and treat organically
Don't
- Avoid overwatering to prevent rot ❌
- Don’t expose to direct afternoon sun
- Refrain from disturbing the corms once planted
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Mulch | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
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 early spring through mid-fall. 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
Himalayan Cobra Lily
Arisaema consanguineum
Arisaema engleri Green Spathe Form
Arisaema engleri 'Green Spathe Form'
Nebraska Green Dragon
Arisaema dracontium 'Nebraska'
Japanese Jack-in-the-Pulpit
Arisaema serratum
Farges' Cobra Lily
Arisaema fargesii
Keep exploring
Explore the genus
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.