Arisaema serratum
Arisaema serratum

Arisaema serratum

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SKU: S23513
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Quick Facts
Common Name: Jack-in-the-Pulpit, Cobra Lily
Hardiness Zone: 5-8S/9W Exposure: Sun to Part Shade
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Blooms In: May-Jun
Height: 3-5' Spacing: 15-18"
Read our Growing Guide Ships as: BAREROOT
Deer Resistance: Yes
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Product Details

Product Details

Japanese Jack-in-the-Pulpits are collectors' must-have plants for stylish woodland plantings, and this statuesque species commands center stage. The exotic hooded spathe of Arisaema serratum can be green or purplish with white stripes and is encircled by a wide whorl of oval leaflets on a mottled stem that, when mature, can reach 3–5′. Striking when it rises up among smaller Hostas and Ferns.

Growing from knobbly tubers, these dramatic and intriguing woodlanders boast the most extraordinary flowers with a club-shaped spike surrounded by a tubular, hooded cowl decorated in the most exotic striping. Best in the shade garden, and watered and fertilized when in growth, they soon build into a fat clump.

For more information on growing and care, click Growing Guide.




The size of the plants we ship has been selected to reduce the shock of transplanting. For some, this means a large, bareroot crown. Others cannot travel bareroot or transplant best if grown in containers. We ship these perennials and annuals in 1 pint pots, except as noted. We must point out that many perennials will not bloom the first year after planting, but will the following year, amply rewarding your patience. We ship bulbs as dormant, bare bulbs, sometimes with some wood shavings or moss. Shrubs, Roses, vines, and other woody plants may be shipped bareroot or in pots. The size of the pot is noted in the quick facts for each item.


We ship our bulbs and plants at the right time for planting in your area, except as noted, with orders dispatched on a first-come, first-served basis by climate zone. Estimated dates for shipping are indicated in the Shipping Details box for each item. Please refer to the Shipping Details box to determine the earliest shipping time. Unless you specify otherwise, fertilizers, tools, and other non-plant items are shipped with your plants or bulbs. Please supply a street address for delivery. Kindly contact us with two weeks notice, if you'll be away at expected time of delivery.


We guarantee to ship plants that are in prime condition for growing. If your order is damaged or fails to meet your expectations, we will cheerfully replace or refund it. Please contact our Customer Service Department at 1-800-503-9624 or email us at [email protected]. Please include your order number or customer number when contacting us.



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Growing guide

Growing guide

Latin Name Pronunciation: a-ris-ee'muh   

CULTURE: Hardiness zones 5-9S/W. Height 18-24inches. Space 18-24inches apart. Plant in partially shaded site in neutral to acid soil, moist woodland soil, or well-drained soil amended with well-rotted leaves, compost, or other organic matter such as peat moss. Morning sun is okay but not the afternoon sun. Adding an inch of compost or humus to the area each spring is all the fertilizing that it needs. Plant the top of the tuber with the slightly pointed end up about 1-2in deep. Can multiply quickly under good growing conditions,as it often self-sows.

SUGGESTED USE: In woodland or shady gardens.

PROBLEMS: Few insect or disease problems if grown in well-drained soil.

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