Plant Profile: Arisaema triphyllum

Arisaema triphyllum, commonly known as Jack-in-the-pulpit, is a springtime wildflower that typically reaches heights of 1 to 2 feet. Initially, these plants produce only male flowers, but as they mature, they develop hermaphroditic characteristics, with male flowers located at the top of the spadix and female flowers at the bottom. By mid-summer, most plants in a colony will disappear as they enter dormancy; however, the mature hermaphroditic plants will bear clusters of red berries in late summer, becoming visible as the spathe begins to wilt. The roots of this plant contain calcium oxalate, a toxic compound also found in dumb cane (Diffenbachia).

For optimal growth, Jack-in-the-pulpit thrives in fertile, medium to wet soil and prefers partial to full shade. It requires consistently moist soil enriched with organic matter and does not perform well in heavy clay conditions. While it can be propagated from seed, it takes about five years for the plant to flower. This species is typically found in forested or natural areas, thriving in damp woodlands, along streams, or as a cultivated herbaceous perennial in gardens.

Fire Risk: This plant is rated low in flammability.

Seasons of Interest:
- Blooms: Spring
- Nut/Fruit/Seed: Summer