Propagating Arisaema Triphyllum - Jack-in-the-Pulpit

Prepared by Patsy Barr


Arisaema triphyllum
Image Credit: Mike Strickland

Collect the seeds when the berries are orange to red. The fruit stalk may be dry and withered. Pull the berries off the seed head, and squeeze each berry to separate the seeds from the pulp. You might want to wear gloves for this as the pulp contains calcium oxalate which might make your fingers sting and will turn your fingers orange. Clean seeds by soaking them in hydrogen peroxide for 15 minutes. Rinse the seeds under running water rubbing the seeds gently in a sieve. Scrape the outer husk, or pericarp, from the seed. The seed may be stored briefly in the refrigerator on moist paper towels or moist seed germinating mix in a plastic bag.

Sow seeds in a seed bed covering the seed to a depth of the size of the seed. If seeds are stored in germinating mix, they are big enough to pick out of the mix in order to sow the seeds in individual peat pots. The pots or seed bed must be kept moist. The seeds should germinate in 25 days. The first year's leaf is a single leaf.

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