Arisaema intermedium

Also Known As

Intermediate Jack in the Pulpit

Plant type

perennial, bulb / corm / tuber, aroid

size

H: 12"-20"
W: 8"-18"

planting zones

6a-9b

More Options

Arisaema intermedium plant details

Arisaema intermedium is a broadleaf deciduous perennial aroid bulb / corm / tuber with green foliage. In spring and summer green flowers emerge. Grows well with mostly sun - mostly shade and even moisture - regular water. Does well in average, rich and well-drained soil. A good option if you're seeking something humidity tolerant and verticillium wilt resistant.

CHARACTERISTICS OF Arisaema intermedium

Plant type: perennial aroid bulb / corm / tuber
Plant family: araceae
Foliage: deciduous green
Mature size: 8 IN - 18 IN - wide, 12 IN - 20 IN - tall
Flowers: green blooms in spring and summer

GROWING CONDITIONS for Arisaema intermedium

USDA Zones: 6a - 9b
Sun exposure: mostly sun - mostly shade
Watering frequency: even moisture - regular
Resistant to: deer and rabbit, humidity and verticillium wilt
Soil needs: average, rich and well-drained

Nursery contributed plant descriptions

This species is closely related to Arisaema. costatum and A. speciosum. It has green, sometimes purple-flushed, spathes with subtle white striping. Its most intriguing characteristic is the long thread-like spadix appendage which usually gets caught on the emerging leaf and hangs twisted from the leaflets. If you unwind this appendage it can often be more than three feet long! Easy to grow in part shade and light compost rich in humus. From Kashmir, India, Nepal, Sikkim and Bhutan.

By: Phoenix Perennials and Specialty Plants Ltd.

Blooms: spring, Trifoliate foliage. Green spathe with long green whip like spadex that is often a couple of feet long. Very strange looking. Zone 6-8. Himalayas, part shade, moist, humus rich well drained.

By: Keeping it Green Nursery

From the Himalayan Mountains. Requires mulch for protection in colder areas. Intermediums Spadix has more twists and turns than a switch back canyon, but without the nausea. Healthy Full Size Bulbs. Best handled and transported during the cold season.