Arisaema Species, Cobra Lily, Jack in the Pulpit, Japanese Cobra Lily

Although these plants look 'exotic', they are really very easy to grow. Well drained soils, particularly in winter, are essential as the ...Read Moreplant grows from a corm. You need to avoid winter wet/rot. Ours has been growing happily in unamended heavy, clay soil. Morning sun is okay for this plant, but otherwise should be grown in a shady location. After three growing seasons in our garden, this beauty is about "knee high". A. ringens multiplies more rapidly than other Arisaema species.

I have had excellent success with Jack in the Pulpits in my very shaded, woody garden area...also dividing and sharing the bulbs...they t...Read Morehrive under my hemlocks in a cool, moist environment.

Seed may take 2 years to sprout, and plants take a few years to reach blooming size. The corms can produce offsets, thereby forming a col...Read Moreony. Dig corms when foliage is yellowing; they may be as deep as 12". Replant at 6" deep.

Naturally occuring mutations can result in plants that have some leaf variegation, usually darker veins or ribs, occasionally light.
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Make sure gloves are worn when handling seeds: they contain toxins that can cause numbness lasting several hours to several days. Thoroughly remove all fruit pulp and rinse seed several times in clear water to remove germination-inhibiting chemicals present in the fruit.

Best way is to plant the seeds immediately they are ripe where plants are desired. Storing for later use usually requires complex dormancy-breaking techniques.

Bulbs produce offsets in most years which can be lifted and planted elsewhere.

Plants can be grown in standing water during winter/spring, but prefer to be drier when dormant in summer/fall, making them ideal candidates for spring flooded gardens.