Jack-in-the-pulpit
Jack-in-the-Pulpit (Arisaema triphyllum) is an unusual perennial wildflower native to North America. It is grown for its unique-looking foliage and its tall, brightly colored fruits. The plant gets its common name from its foliage which resembles a preacher standing in a pulpit, with a spathe, which resembles a pale green or purple hood, emerging from its ‘head’ and bracts forming its ‘sleeves’. The Jack-in-the-Pulpit plant is a difficult houseplant to care for, however, its unique structure makes it a desirable addition to your plant collection.
Watering this plant is critical for it to survive and thrive. Jack-in-the-Pulpit likes consistent moisture throughout the soil. It prefers moist, well-drained soil at all times. It should never be allowed to dry out between watering or it can cause drooping and wilting of the foliage. Over-watering can cause root rot. During the growing season, water the plant once a week a sufficient amount to keep the soil consistently damp yet not soggy.
Jack-in-the-Pulpit requires moderate to bright light to do well indoors. Filtered sunlight is best, as this plant needs some light, but not too much direct sun which can cause wilting and burn the foliage. The plant should be kept in an area that receives indirect light or signs of sun, such as near a window. Keep the plant away from air conditioning and heating vents as this can dry out the foliage.
Jack-in-the-Pulpit prefers a cool environment and should not be exposed to temperatures higher than 75 degrees Fahrenheit (24 degrees Celsius). In warmer temperatures, the leaves and bracts may develop spots or even burn. Cooler temperatures are tolerated better, and ideal temperatures range between 65- 75 degrees Fahrenheit (18-24 degrees Celsius).
This plant prefers a humid environment, but it is not essential for its health. To increase the humidity around the Jack-in-the-Pulpit, try misting the foliage or running a humidifier. If the humidity stays consistently above 40%, the plant should do well.
Jack-in-the-Pulpit does best in moist, humus-rich, light, and well-drained soil. A potting mix that contains perlite, peat, and compost is ideal. Keeping the soil moist but not wet is best, as overly wet soil can cause root rot.
Fertilize Jack-in-the-Pulpit every month during the spring and summer. A balanced liquid fertilizer is best, as this is easier for the plant to take up and utilize. Make sure to dilute the fertilizer according to the directions and stop fertilizing in the fall as the plant requires less nutrition during its dormant period.
Jack-in-the-Pulpit is susceptible to several pests, including aphids, scale, mealybugs, and spider mites. The best way to get rid of these pests is to spray the plant with an insecticidal soap. Be sure to spray the underneath of the leaves as well. It may require several applications before the pests are completely eliminated. It is also important to physically remove any pests from the foliage, since this will help decrease the infestation.
Repotting should be done during the early spring months, as the plant is beginning to grow actively. Repot every two to three years in fresh soil to keep the plant from becoming root bound or overcrowded. Be sure to use a well-drained soil blend and a pot with a drainage hole as too much water can cause root rot. Additionally, move the pot to a larger size if the roots are overcrowded.
Pruning is not generally needed for this plant, but it can be done to shape and clean up. Pruning is best done in late winter or early spring. If pruning is needed, simply cut off the affected foliage, and keep pruning tools clean to prevent disease spreading to other plants.
Jack-in-the-Pulpit benefits from a layer of mulch to keep the soil consistently moist, protect it from weeds, and keep the plants cool in hot climates. Organic mulch such as pine bark, hardwood, or cypress bark are best as some types of mulch can contain chemicals.
Jack-in-the-Pulpit can be propagated through division or by seed. Division is the easiest and most common method. It is best to do this during the fall or winter when the plant is dormant. Propagate the Jack-in-the-Pulpit from seed by sowing the seeds in moist soil and keeping the soil consistently damp. It will take several years for the seeds to mature, so patience is necessary.
This plant does not require staking or support, but it can benefit from it if the stems are too weak. A small trellis or stake can be used to support the stems.
This plant does not require a dormancy period, but if provided, it can help promote new growth and vigorous flowering. During its rest period, it should be kept in a cooler environment with indirect light and damp soil. This dormant period should last no more than a couple of months.
Yes, Jack-in-the-Pulpit is toxic to pets if ingested. The plant contains calcium oxalate crystals which can cause digestive upset, drooling, vomiting, difficulty breathing, and muscle weakness. If symptoms occur, contact your veterinarian immediately.