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Devil's Tongue

Also known as

Konjac, Konjac, Konnyaku Potato, Snake Palm and Elephant Yam

Taxonomy

Scientific name

Amorphophallus konjac

Genus

Amorphophallus

Family

Araceae

Order

Alismatales

How to care for Devil's Tongue

💦 Water

How often to water your Devil's Tongue

Devil's Tongue needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Water 0.5 cups every
9

Does your plant get direct sunlight?

No Yes

Select the pot size

☀️ Light

Finding light for Konjac in your home

Devil's Tongue love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Devil's Tongue does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Devil's Tongue in your home 🏡.

🪴 Nutrients

How to fertilize Devil's Tongue

Nutrient, fertilizer, and repotting needs for Devil's Tongue: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Devil's Tongue after it doubles in size or once a year—whichever comes first.

Browse #Konjac

💡 FAQs

⭐ Difficulty Level

Devil's Tongue is generally easy to care for, though some plant parents report facing challenges with growing it. Check out the reviews down below to read more about their experiences!

How to Grow Konjac →

Benefits of Growing Konjac →

Common Konjac Problems →

Outdoor Care Guide for Konjac →

💦 Water Needs

Devil's Tongue prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Konjac Water Frequency →

Konjac Root Rot →

☀️ Sunlight Needs

Devil's Tongue requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

Konjac Light Requirements →

Konjac Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Devil's Tongue is not safe to consume. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian. If you have children, cats, or dogs in the home, we suggest keeping this plant out of reach.

Is Konjac Edible? →

Konjac Toxicity to Cats →

Konjac Toxicity to Dogs →

Konjac Toxicity to Humans →

🪴 Soil

Devil's Tongue does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!

Best Soil Mix for Konjac →

Best Pots for Konjac →

When and How to Successfully Repot Konjac →

What Are Healthy Konjac Roots →

💩 Fertilizer

Devil's Tongue is a fast growing plant and may deplete the nutrients in its soil over time. Replenish them with a gentle organic fertilizer or compost every 1-2 months depending on your location and season. Fertilize more often during the growing season and in warmer and brighter climates.

How Much and When to Fertilize Konjac →

⬆️ ⬇️ Growth Pattern

Devil's Tongue grows vertically and new growth will emerge from the top of the plant.

Konjac Lifecycle →

Konjac Size Guide →

How and When to Prune Konjac →

🌦️ Growing Outdoors

USDA Hardiness Zone
Devil's Tongue can be grown outdoors in USDA Hardiness Zones 6a-11b. Find your local hardiness zone here.

Konjac Temperature Tolerance →

Konjac Hardiness Zones →

Landscaping Ideas with Konjac →

When to Plant Konjac →

How to Plant Konjac →

Where to Plant Konjac →

Winter Care for Konjac →

Best Companion Plants for Konjac →

Is Konjac a Weed? →

🌱 Propagation

The seeds of Devil's Tongue can be used to grow new plants! After your plant flowers, any seeds that formed can be collected and germinated in potting soil.

How to Propagate Konjac →

🍂 Yellow Leaves

Yellow leaves aren’t always a reason to panic, and can be a normal part of a plant’s life cycle. Unless brand new leaves are turning yellow or all the leaves change color at once, it’s likely just your plant shedding old leaves.

Overwatering and root rot are the most likely cause of problems in Devil's Tongue, since they are sensitive to wet soil. The leaves may also appear to be curling or drooping. Less often, yellow leaves are caused by underwatering, nutrient deficiencies, or pests.

Replace soggy soil with fresh, dry soil and download Greg to make sure your plant never gets overwatered again!

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.