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Amorphophallus konjac (Devil's tongue)
3 hours care
per year
per year
1.3m
Max height
Max height
2m
Max spread
Max spread
1-2 years
To maturity
To maturity
Plant details
Botanical name
Amorphophallus konjac
Other names
Devil's tongue, Snake palm, Umbrella arum, Voodoo lily, Amorphophallus rivieri, Amorphophallus mairei, Konjaku, Konnyaku, Konjac
Genus
Amorphophallus Amorphophallus
Species
A. konjac - A. konjac is a tuberous perennial with erect, ovate, purple-brown spathes borne on spotted stalks in summer followed by orange-red berries. The flower and fruit are followed by a single, large, dissected leaf with elliptic, mid-green leaflets borne on a mottled, olive-green and brownish-white leaf stalk.
Amorphophallus konjac is: Deciduous
Habit
Erect
Flower
Purple, Brown in Summer
Foliage
Mid-green in Autumn
How to care
Watch out for
Specific pests
Glasshouse red spider mite , Root mealybugs , Whitefly Glasshouse red spider mite , Root mealybugs , Whitefly
General care
Propagation
Sow seed with heat as soon as ripe.
Propagation methods
Offsets, Seed
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Where to grow
Amorphophallus konjac (Devil's tongue) will reach a height of 1.3m and a spread of 2m after 1-2 years.
Suggested uses
Beds and borders, Conservatory, Containers, Greenhouse, Sub-Tropical
Cultivation
Plant dormant tubers 10cm deep in late winter/early spring in moist, humus-rich soil in partial shade. In containers, use deep pots at least twice the diameter of the tuber. Water freely & feed monthly in growth. Reduce water as foliage dies.
Soil type
Loamy
Soil drainage
Moist but well-drained, Moisture-retentive
Soil pH
Acid, Neutral
Light
Partial Shade
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Indoor unheated (H2), Tender in frost (H3), Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Amorphophallus konjac
Other names
Devil's tongue, Snake palm, Umbrella arum, Voodoo lily, Amorphophallus rivieri, Amorphophallus mairei, Konjaku, Konnyaku, Konjac
Genus
Amorphophallus Amorphophallus
Species
A. konjac - A. konjac is a tuberous perennial with erect, ovate, purple-brown spathes borne on spotted stalks in summer followed by orange-red berries. The flower and fruit are followed by a single, large, dissected leaf with elliptic, mid-green leaflets borne on a mottled, olive-green and brownish-white leaf stalk.
Foliage
Deciduous
Habit
Erect
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Colour
Flower
Purple, Brown in Summer
Foliage
Mid-green in Autumn
How to care
Watch out for
Specific pests
Glasshouse red spider mite , Root mealybugs , Whitefly
General care
Propagation
Sow seed with heat as soon as ripe.
Propagation methods
Offsets, Seed
Monthly care advice
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Where to grow
Amorphophallus konjac (Devil's tongue) will reach a height of 1.3m and a spread of 2m after 1-2 years.
Suggested uses
Beds and borders, Conservatory, Containers, Greenhouse, Sub-Tropical
Cultivation
Plant dormant tubers 10cm deep in late winter/early spring in moist, humus-rich soil in partial shade. In containers, use deep pots at least twice the diameter of the tuber. Water freely & feed monthly in growth. Reduce water as foliage dies.
Soil type
Loamy
Soil drainage
Moist but well-drained, Moisture-retentive
Soil pH
Acid, Neutral
Light
Partial Shade
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Indoor unheated (H2), Tender in frost (H3), Hardy (H4)
USDA zones
Zone 12, Zone 11, Zone 10, Zone 9, Zone 8, Zone 7
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Loamy | Tell us... |
| Soil drainage: | Moist but well-drained, Moisture-retentive | Tell us... |
| Soil pH: | Acid, Neutral | Tell us... |
| Light: | Partial Shade | Tell us... |
| Aspect: | South, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Indoor unheated (H2), Tender in frost (H3), Hardy (H4) | Tell us... |
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