The Story
Plant Bio
Arisaema are tuberous perennials, commonly called cobra lilies or Jack-in-the-pulpits, known for their exotic spathe and spadix flower structures and often dramatic foliage.
This cultivar is particularly valued for its unique silver-speckled leaf pattern, which adds ornamental appeal even when the plant is not in bloom, making it a standout in woodland and shade garden settings.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
18 inches
Width
8 inches
Light
Partial Sun, Shade
Zones
5, 6, 7, 8, 9
Water
Moist, well-drained
Humidity
Moderate to high
Lifespan
Perennial
Native To
East 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 fall for natural stratification
- Plant tubers 2 inches deep in well-draining soil
- Water regularly during active growth, especially in dry spells
- Apply mulch to retain moisture and suppress weeds
- Divide clumps every 3–4 years in early spring or fall
- Protect from harsh winter winds with mulch or cover
Pro Tip
Plant in shaded areas with rich, moist soil for best growth.
Keep It Thriving
Care Guide
Do
- Water consistently to keep soil moist 🌱
- Mulch to conserve moisture and regulate temperature
- Divide clumps in early spring for propagation
- Monitor for pests and treat organically if needed
Don't
- Avoid overexposing to direct sunlight ❌
- Don't let soil dry out completely
- Refrain from heavy fertilization that can cause rot
- Never transplant during peak flowering
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Plant |
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
Silver Speckled Cobra Lily questions
What zones can Silver Speckled Cobra Lily grow in?
Silver Speckled Cobra Lily 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 Silver Speckled Cobra Lily deer resistant?
Yes — Silver Speckled Cobra Lily is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Silver Speckled Cobra Lily bloom?
Silver Speckled Cobra Lily 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 Silver Speckled Cobra Lily need full sun?
Silver Speckled Cobra Lily does best in part shade.
More Arisaema to compare
Japanese Cobra Lily
Arisaema ovale
Jack-in-the-pulpit
Arisaema triphyllum
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
Keep exploring
Explore the genus
Hardy in your zone?
Grow Silver Speckled Cobra Lily 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.