Jack In The Pulpit
Arisaema triphyllum
- Native to:
- Canada, Prince Edward I., United States
Geoffrey.landis
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Araceae
- Genus:
- Arisaema
- Species:
- Arisaema triphyllum
- USDA Symbol:
- ARTR
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Full Sun,Shade
- Drought Tolerance:
- Low
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- green, purple, brown
Wildlife Benefits
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals, box turtles
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.0 - 6.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- prefers shaded woodland environments
Propagation & Germination
- Stratification:
- Warm then cold/moist stratification (double dormancy) — 60–120 days
- Germination Time:
- 30–365 days
- Notes:
- Seeds require warm stratification followed by cold stratification. Germination often delayed until second spring. Remove fleshy fruit coating before stratification.
The above propagation data sourced from Claude AI
Pre-treatment: Requires stratification: mix the seeds with an equal amount of moist perlite or vermiculite. Put mixture into a Ziploc-style bag or a Rubbermaid-style container. 2-3 months of moist cold stratification in a cool dry place (refrigerator or cold garage). Cold store until planted (up to 3 years).
Establishment: Seed is collected by hand from locally native plants within the eastern central Upper Peninsula. The plant blooms from March to June. Fruit type is a berry containing 1-5 seeds. The seed is harvested as soon as the fruits are bright red. Caution: berry juice may irritate skin. Found in rich, moist deciduous woods and flood plains. Full shade. Unusual green/maroon flower (spathe and spadix). Height to 2 feet. Red berries ripen in fall and are showy.
Source: npn.rngr.net
ORGHPS Germination Guide: Sow @ 20°C. Seed germinates within 3 months Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water for approximately 7 days. Discard water. * sow thinly, keep dry when dormant, leave in pot for 2 years