Plant FinderPlant Finder Graphic
Arisaema sikokianum
Arisaema sikokianum

Click to Enlarge

Zone
Zones 3-6, 14-17, 31-41
Partial SunNo Sun
Partial, Shade
Regular Water
Moderate

Arisaema sikokianum

Jack-In-The-Pulpit
Araceae
Perennials

ARISAEMA

Curious rather than beautiful relatives of calla (Zantedeschia), attractive both to children and to fanciers of the odd. Flowers are tiny, crowded on a club-shaped fleshy spike (spadix) surrounded by an overarching flower bract (spathe) that is usually green or dull purple in color and often striped in a contrasting color.

In late spring, tubers send up one to three leaves, each divided into three or more leaflets. Inflorescences appear on a separate stalk in spring or early summer. As flowers fade, spathe withers and spadix forms orange to red seeds.

These are woodland plants, appreciative of organic material in the soil. Plant in fall, setting tubers 1 ft. apart, 2 in. deep. Plants die to the ground in winter; don’t let dormant tubers dry out completely.

Arisaema sikokianum

From Japan. Grows to 20 in. tall, with 6 in. leaflets. A 4–12-in. stalk supports a 6-in. spathe that is erect rather than arching. Spathe is purplish brown on the outside, yellowish white within; spadix is pure white and expanded at the tip.

You Might Also Like...

Arisaema sikokianum

From Japan. Grows to 20 in. tall, with 6 in. leaflets. A 4–12-in. stalk supports a 6-in. spathe ...

Chamaecyparis lawsoniana

Pyramidal, 60-ft.-tall Western timber tree with lacy, drooping foliage. Species is seldom seen in gard...

Polystichum braunii

Native to northern latitudes of America and Asia. To 1–3 ft. high and wide. New growth is silver...

Find Your Sunset Climate Zone

Find Your Sunset Climate Zone

View Maps Learn More

Advertisement