Wildflower Archive

wetland wildflower

Jack-in-the-Pulpits

Arisaema triphyllum

Also known as Jack In The Pulpit, Indian Jack In The Pulpit, Jack-in-the-pulpit

Jack-in-the-Pulpits (Arisaema triphyllum)1 of 3
William Curtis

Native to much of the USA and southern Canada

Nova Scotia to Manitoba and eastern North Dakota, south to Florida, eastern Texas and eastern Kansas

  • Light Full sun to shade Sun tolerance
  • Moisture Moist to wet Moisture preference
  • Zones 3–9 Cold to heat range
  • Bloom Apr–Jun Flowering time
  • Height up to 2 ft to 0.6 m
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A wetland wildflower for sun through shade and consistently moist to wet soil. Its green flowers peak in May. At up to 2 ft, it suits rain gardens, pond edges, and damp low spots. Hardy in USDA zones 3–9.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Hardiness zones

Find your zone:

When it blooms

The Jack-in-the-Pulpits's green flowers bloom April to June, peaking in May. This late-spring display draws beetles and bees.

Apr–JunJanFebMarAprMayJunJulAugSepOctNovDec

Jack-in-the-Pulpits blooms green, purple & brownFoliage

Pollinators & wildlife

  • Beetles Tomentous Soldier Beetle also Acmaeodera tubulus, Pubescent Tumbling Flower Beetle
  • Bees Federal Cuckoo Carder Bee also Agapostemon texanus, Cresson's Cuckoo Sweat Bee

Full plant details

Where it grows

Habitat
WetlandThe wild plant community it grows in.
Native range
Much of the USA and southern CanadaUnited States (38): AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV. Canada (6): MB, NB, NS, ON, PE, QC. Where it grows wild on its own, by state and province.
Native distribution
Nova Scotia to Manitoba and eastern North Dakota, south to Florida, eastern Texas and eastern KansasThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Full sun to shadeHow much sun it takes, from full sun to full shade.
Moisture
Moist to wetThe soil dampness it prefers, from dry to wet.
Hardiness zones
USDA 3–9 · Canadian 3–7The cold-to-heat climate range it survives.
Soil
Humus-rich, moist soilsThe soils it grows in naturally.
Soil texture
Light to medium (sandy to loamy)The soil grade it prefers, from sand to clay.
Soil pH
4.8–7.0The acidity to alkalinity it tolerates (7 is neutral).
Soil quality
HighHow rich a soil it needs. Many natives prefer lean soil and flop in rich beds.
Water use
HighHow thirsty it is, a rough guide to how often to water.
Salinity tolerance
NoneHow well it copes with salty soil, near roads or the coast.
Lime (CaCO₃) tolerance
MediumHow well it copes with chalky, lime-rich soil.

Growth & form

Height
up to 2 ft (to 0.6 m)Typical mature height.
Spread
~2 ft (0.5 m)How wide one plant gets, a guide to spacing.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).
Growth rate
ModerateA relative ranking versus other plants of the same type (USDA), not an absolute rate.
Shape
ErectIts overall silhouette.
Root depth
8+ in (20+ cm)How far the roots reach, a guide to drought resilience and transplanting.

Flowers, foliage & fruit

Type
WildflowerWhat kind of plant it is.
Bloom
Apr–JunWhen it flowers.
Flower color
Green, Purple, BrownThe bloom color, or colors.
Fruit/Seeds
ripens Jun–SepThe seed or fruit it sets after flowering.
Toxicity
None knownWhether any part is poisonous to people or pets.

Propagation & seed

Cold stratification
Not requiredWhether seed needs a cold, moist spell before it will germinate.
Propagation
Bare root, container, corm, seedHow to start new plants.
Seed
~0.1 million seeds per poundNotes on the seed and how to sow it.
Seed spread rate
SlowHow readily it self-sows. Slow or none means well-behaved, not a spreader.
Seedling vigor
LowHow strongly young seedlings establish.
Vegetative spread
SlowWhether it creeps outward or stays put in a clump.