The Story
Plant Bio
Arisaema candidissimum is a perennial herbaceous plant distinguished by its striking, umbrella-like foliage and tall spathes with white, sometimes with green or purple tinges, producing distinctive hooded flowers.
This species is notable for its elegant, pure white spathes that add a refined touch to woodland gardens and its adaptability to shaded, well-drained soils.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
12 inches
Light
Partial Sun, Shade
Zones
5, 6, 7, 8, 9
Water
Moist
Humidity
Moderate
Lifespan
Perennial
Native To
East Asia
Toxicity
Toxic if ingested
Bloom period
Early summer – Late spring
In flower about 12 months of the year
Planting
How to Grow
- Tuck seeds into moist soil in fall for natural stratification.
- Plant tubers 2-3 inches deep in well-draining loam.
- Water regularly to keep soil moist but not soggy.
- Apply mulch to retain moisture and suppress weeds.
- Provide dappled shade for optimal growth; avoid direct afternoon sun.
- Monitor for pests and remove any affected foliage promptly.
Pro Tip
Provide dappled shade and consistent moisture for best results.
Keep It Thriving
Care Guide
Do
- Water consistently during dry spells 💧
- Mulch to conserve soil moisture 🌱
- Plant in well-draining soil to prevent rot
Don't
- Avoid overwatering to prevent tuber rot ❌
- Do not expose to full, direct sunlight 🌞
- Skip fertilizing during dormancy
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| Winter Prep |
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
White-spathed Cobra Lily questions
What zones can White-spathed Cobra Lily grow in?
White-spathed 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 White-spathed Cobra Lily deer resistant?
Not reliably. Deer may browse White-spathed Cobra Lily, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does White-spathed Cobra Lily bloom?
White-spathed Cobra Lily typically blooms in early summer through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does White-spathed Cobra Lily need full sun?
White-spathed 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 White-spathed 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.