Jack-in-the-Pulpit plants, or Arisaema triphyllum, are perennial wildflowers that bloom in the spring and early summer. It produces shiny, bright-orange berries in the fall. The Jack-in-the-Pulpit is an exotic, unusual-looking plant that grows up to 4 feet tall with single leaves divided into three leaflets. The plant can be a unique addition to a shaded flower bed or a woodland wildflower garden. Jack-in-the-Pulpit seeds are easy to grow and can be planted directly into the ground after harvest.
Harvest Jack-in-the-Pulpit seeds in the fall by picking off the bright-red berries. Squeeze the berries to remove the one or two seeds inside. Rinse the seeds to clean off the pulp.
Plant the seeds outdoors right after harvesting them. Find a spot that provides partial shade and moist soil. Turn the soil, loosening it to a depth of about 3 or 4 inches.
Plant the Jack-in-the-Pulpit seeds about 1/2-inch deep into the soil. Space the seedlings about 12 to 18 inches apart.
Water the soil well and keep it moist by watering once or twice every week. Spread a 1- or 2-inch layer of organic mulch around the plants after they begin to grow to help retain moisture in the soil.