Photo by Melody

PlantFiles: Jack in the Pulpit
Arisaema consanguineum

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Family: Araceae (a-RAY-see-ee) (Info)
Genus: Arisaema (air-uh-SEE-muh) (Info)
Species: consanguineum (kon-san-GWIN-ee-um) (Info)

Synonym:Arisaema davidianum
Synonym:Arisaema erubescens var. consanguineum
Synonym:Arisaema undulatum
Synonym:Arisaema filamentiosum
Synonym:Arisaema vituperatum

3 vendors have this plant for sale.

8 members have or want this plant for trade.

Category:
Bulbs
Perennials

Height:
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

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

Hardiness:
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

Danger:
All parts of plant are poisonous if ingested

Bloom Color:
Rose/Mauve
Orange
Bright Yellow
Green
Dark Purple/Black
Maroon (Purple-Brown)

Bloom Time:
Late Spring/Early Summer
Mid Summer

Foliage:
Herbaceous
Shiny/Glossy-Textured

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:
Non-patented

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; sow indoors before last frost
From seed; direct sow after last frost
From seed; germinate in a damp paper towel

Seed Collecting:
Remove fleshy coating on seeds before storing
Wear gloves to protect hands when handling seeds

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There are a total of 14 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive wallaby1 On Dec 4, 2005, wallaby1 from Lincoln
United Kingdom (Zone 8a) wrote:

I bought this bulb from Norfields, UK around 4 years ago. It first flowered last year, and again this year, but with only 1 flower this time. Last year it produced a 2nd flower a little further down the stem, and a second smaller leaf, but a repot should give it a boost for next year. I grow it in a cold greenhouse in a largish pot, using a mix of leafy compost, gritty river soil/leaves, and Irish moss peat. Good results will be achieved if grown this way. It can be brought out for summer, but this summer was very cold.

The leaves on this plant are much more robust than most I have seen, and it appears there are different collected selections. The leaves have long tendrils hanging from the tips, and the spathe a very long one. Colours of the spathe are green with a purple flushed hood, but some can have more purple colouring. It is quite hardy; the stem starts to grow early in the year and emerges by June. It can be grown outside, but always a good idea to get a plant like this well established in a pot first. Planting should be deep.

Regional...

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

Denver, Colorado
Naples, Florida
Lakeville, Minnesota
Middletown, Pennsylvania



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