Amorphophallus Species, Devil's Tongue, Snake Plant, Konjac, Konnyaku Potato, Voodoo Lily
Amorphophalluskonjac

Family: Araceae (a-RAY-see-ee)
Genus: Amorphophallus (a-mor-fo-FAL-us)
Species: konjac (KON-jak)

Synonym:Amorphophallus mairei

Synonym:Amorphophallus nanus

Synonym:Amorphophallus rivierei

Category
Bulbs
Vegetables
Ponds and Aquatics
Tropicals and Tender Perennials

Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens

Sun Exposure
Light Shade
Partial to Full Shade
Full Shade

Foliage
Grown for foliage
Herbaceous
Textured
Veined

Foliage Color
Dark/Black

Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing
18-24 in. (45-60 cm)

Hardiness
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)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow

Danger
Parts of plant are poisonous if ingested

Bloom Color
Medium Purple
Maroon/Burgundy

Bloom Characteristics

Bloom Size

Bloom Time
Late Spring/Early Summer

Other details
May be a noxious weed or invasive

Soil pH requirements
6.6 to 7.5 (neutral)

Patent Information
Non-patented

Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; germinate in a damp paper towel
From seed; germinate in vitro in gelatin, agar or other medium

Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Remove fleshy coating on seeds before storing
Wear gloves to protect hands when handling seeds
Seed does not store well; sow as soon as possible