Griffith's Cobra Lily
Arisaema griffithii

Family: Araceae (a-RAY-see-ee) (Info)
Genus: Arisaema (air-uh-SEE-muh) (Info)
Species: griffithii (GRIF-ith-ee-ey) (Info)

Category:

Alpines and Rock Gardens

Bulbs

Height:

18-24 in. (45-60 cm)

Spacing:

6-9 in. (15-22 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)

USDA Zone 10a: to -1.1 C (30 F)

Sun Exposure:

Light Shade

Danger:

All parts of plant are poisonous if ingested

Bloom Color:

Green

Purple

Dark Purple/Black

Maroon (Purple-Brown)

Bloom Time:

Late Spring/Early Summer

Foliage:

Deciduous

Smooth-Textured

Veined

Other details:

Requires consistently moist soil; do not let dry out between waterings

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; sow indoors before last frost

Seed Collecting:

Allow unblemished fruit to ripen; clean and dry seeds

Wear gloves to protect hands when handling seeds

Regional

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

Crescent City, California

Chicago, Illinois

Hubbard, Oregon

Bainbridge Island, Washington

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Positive

On Mar 16, 2004, Rainforest wrote:

I have grown this amazing Arisaema for two years in Vancouver Canada. It has spent the winter in an 8" deep pot in an unheated commercial greenhouse. I have roughly 17 varois species (including Himalyan)and they have mainly proven themselves vigourous and reliably hardy in our canadian zone 7.Although they must be kept moist while growing,we let them dry out(in soill).As they reguire good drainage,we add pumice to the growing mix.Arisaemas do not like to be out of soil for long periods.

Neutral

On Jan 18, 2003, Baa wrote:

An unusual, tuberous plant from the Himalayas.

Has two, large, dark green, slightly wrinkled leaves, each divided into 3 leaflets and prominent dark veins on the underside. Bears a large (up to 10 inches), hooded, green spathe, deeply veined with dark purple-brown. Spathes are borne at ground level under the leaves. The spadix is very dark purple

Flowers late May - beginning of July

Not an easy one to keep happy. Loves moist but well-drained, leafy, neutral to acid soil in light shade and a sheltered site. Dislikes too much heat and probably needs mulching in winter if kept outside. Some claim this is hardy down to zone 6 but I suspect that depends on the garden situation!

If lifting the tuber to store for winter, don't allow it t... read more