Photo by Melody

PlantFiles: Jack in the Pulpit, Devil's Nip, Cobra Lily, Indian Turnip, Indian Almond, Pepper Turnip
Arisaema ringens

Family: Araceae (a-RAY-see-ee) (Info)
Genus: Arisaema (air-uh-SEE-muh) (Info)
Species: ringens (RIN-jens) (Info)

Synonym:Arisaema praecox
Synonym:Arisaema sieboldii
Synonym:Arum ringens

One vendor has this plant for sale.

14 members have or want this plant for trade.

Ponds and Aquatics

18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Sun to Partial Shade
Light Shade
Partial to Full Shade

Parts of plant are poisonous if ingested

Bloom Color:
Maroon (Purple-Brown)

Bloom Time:
Mid Spring
Late Spring/Early Summer

Grown for foliage

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Remove fleshy coating on seeds before storing
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds
Wear gloves to protect hands when handling seeds
Seed does not store well; sow as soon as possible

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By bootandall
Thumbnail #1 of Arisaema ringens by bootandall

By bootandall
Thumbnail #2 of Arisaema ringens by bootandall

By willbike
Thumbnail #3 of Arisaema ringens by willbike

By DiOhio
Thumbnail #4 of Arisaema ringens by DiOhio

By rcn48
Thumbnail #5 of Arisaema ringens by rcn48

By rcn48
Thumbnail #6 of Arisaema ringens by rcn48

By SW_gardener
Thumbnail #7 of Arisaema ringens by SW_gardener

There are a total of 29 photos.
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5 positives
2 neutrals
No negatives

Gardeners' Notes:

Positive stormyla On Jul 4, 2011, stormyla from Norristown, PA (Zone 6b) wrote:

I planted two of these three years ago. The one came up the following year and bloomed beautifully. The other never materialized. I thought that it fell victim to the damp soil or to the voles. The following year both plants emerged from the ground. The sleepy one did not bloom but grew well.

Neutral Strever On Jun 12, 2008, Strever from Hiouchi, CA (Zone 8b) wrote:

Arisaema ringens is an Asian Arisaema
the only images above that look like they are A.ringens are the 2 by bootnall and the 1 by rcn48
the rest are most likely all Arisaema triphyllum


Positive enya_34 On May 5, 2006, enya_34 from Madison, WI wrote:

It overwintered in 2006 in my zone 5 with no protection. It came up a couple of weeks later than the native Arisaema triphyllum. I am yet to see if there will be berries.

The flower does remind the cobra, hence the name the cobra lily. However, most of the photos in the PlantFiles are wrong. So I suspect same is true about the hardiness reports.

Positive rcn48 On Feb 12, 2006, rcn48 from Lexington, VA (Zone 6a) wrote:

Although these plants look 'exotic', they are really very easy to grow. Well drained soils, particularly in winter, are essential as the plant 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.

Positive artsgirl On Aug 5, 2003, artsgirl from Quincy, IL wrote:

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

Neutral Ladyfern On Aug 4, 2003, Ladyfern from Jeffersonville, IN (Zone 6a) wrote:

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 colony. Dig corms when foliage is yellowing; they may be as deep as 12". Replant at 6" deep.

Positive lupinelover On Jun 5, 2002, lupinelover from Grove City, OH (Zone 6a) wrote:

Naturally occuring mutations can result in plants that have some leaf variegation, usually darker veins or ribs, occasionally light.

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.


This plant has been said to grow in the following regions:

Deer, Arkansas
San Leandro, California
Old Lyme, Connecticut
Bartow, Florida
Quincy, Illinois
Bloomington, Indiana
Bloomfield, Iowa
Louisville, Kentucky
Melbourne, Kentucky
Skowhegan, Maine
Brookeville, Maryland
Bridgewater, Massachusetts
Marshfield, Massachusetts
Millbury, Massachusetts
Northfield, Massachusetts
Rutland, Massachusetts
Cadillac, Michigan
Erie, Michigan
Saint Helen, Michigan
West Branch, Michigan
Minneapolis, Minnesota
Piedmont, Missouri
Saint Louis, Missouri
Helena, Montana
Stockton, New Jersey
Hilton, New York
Roxbury, New York
West Islip, New York
Charlotte, North Carolina
Cincinnati, Ohio
Coshocton, Ohio
Glouster, Ohio
Walterville, Oregon
Greencastle, Pennsylvania
Norristown, Pennsylvania
Philadelphia, Pennsylvania
Schwenksville, Pennsylvania
Tidioute, Pennsylvania
Wilkes Barre, Pennsylvania
West Warwick, Rhode Island
Elgin, South Carolina
Nashville, Tennessee
Lexington, Virginia
Madison, Wisconsin

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