Information on Growing Amorphophallus Konjac

Amorphophallus konjac, also known as devil's tongue and voodoo lily image by kthypryn/


Devil's tongue and voodoo lily are the common names for Amorphophallus konjac; it's in the same family as philodendrons and is native to Southeast Asia. Korean, Chinese and Japanese people grow one variety in greenhouses as a starch plant for use in soups and stews. The flowers grow on a single stalk as high as 5 feet. Growing this plant is a rewarding experience for beginning and experienced gardeners.

Step 1

Prepare the pot by putting broken clay pot pieces into the bottom to cover the drainage holes.

Step 2

Fill the pot with potting soil, leaving about 2 inches of space at the top. Press the potting soil down as you fill the pot. Put the Amorphophallus konjac tuber into the soil.

Step 3

Add the soil-less planting mix on top of the tuber, because the lateral roots grow up out of the tuber.

Step 4

Mix the fertilizer into water according to the manufacturer's directions. Water the newly planted tuber with the fertilizer mix.

Step 5

Re-pot the tuber every year to hasten flowering.

Tips and Warnings

  • The plant will freeze and not grow again if you leave it outside during the winter.

Things You'll Need

  • 12-inch pot
  • Potting soil
  • Soil-less planting mix
  • 18-18-30 tomato fertilizer


  • University of Arkansas, Plant of the Week
  • Growing with Plants, Amorphophallus Bulb
  • Information about the uses of Amorphophallus

Who Can Help

  • Killer Plants: Plant of the Week
Keywords: Amorphophallus Konjac, Voodoo Lily, Devil's Tongue

About this Author

Ellie Kuykendall has been writing and editing professionally since 1997. Her travel and insurance articles have appeared in national magazines. She's contributed to four books and is currently writing her own book. She received a bachelor's degree from University of San Francisco.

Photo by: kthypryn/