All Plants

Dumb Cane Plant

Dieffenbachia Amoena

Plant Type
Herbaceous, perennial
Mature Size
3-10 ft tall, 2-3 ft wide
Sun exposure
Dappled shade, indirect light
Soil Type
Potting mix, well-drained
Soil PH
Bloom Time
Flower Color
Hardiness Zones
10-12 (USDA)
Native Area
Caribbean, South America
Toxic to humans, cats and dogs
Dumb Cane Plant


Plant Care

Dumb cane plants, also known as Dieffenbachia, are popular houseplants due to their attractive foliage and ease of care. Though they are generally low-maintenance, there are still certain conditions that need to be met in order to ensure healthy growth. This article outlines five key points to consider when caring for Dumb cane plants, including light, soil, water, temperature and humidity, and fertilizer.


Dumb cane plants prefer bright indirect light or filtered sunlight. Direct sun exposure will burn their leaves and cause them to become yellowed or wilted. If the plant is not receiving enough light it will become leggy with long internodes between the leaves. To keep it compact and bushy you should rotate your plant weekly so it gets even lighting on all sides. You can also repot the plant with a fresh potting mix every two years in a container that has drainage holes at the bottom so excess water can escape.


When it comes to soil requirements Dumb cane plants thrive in well-draining potting mix with plenty of organic matter such as peat moss or coco coir mixed in for extra aeration. The soil should also be slightly acidic with a pH of 6-7 so avoid using soil mixes with too much fertilizer added as this will cause nutrient burn and discourage growth.


When watering your dumb cane plants be sure to provide them with an adequate amount of water but not too much as they are susceptible to root rot if left sitting in soggy soils for extended periods of time. To properly water your plant stick your finger into the top inch of soil and only water if it feels dry then let any excess drain away from the pot after a few minutes so no standing water remains on the surface of your potting medium.

Temperature & Humidity

These tropical plants prefer warmer temperatures ranging from 70-85°F which can easily be achieved by placing them near east-facing windows or away from drafts caused by air conditioners or heaters during cold months. For optimal growth these plants also require higher levels of humidity which can be achieved by misting regularly or setting up a humidifier nearby if natural humidity isn’t sufficient enough for your own climate area.


As far as fertilizing goes you should use an all purpose liquid fertilizer at half strength every two weeks throughout the growing season from spring until fall but avoid fertilizing during winter when temperatures drop below 60 degrees Fahrenheit otherwise you risk burning the roots which will stunt their growth in unfavorable conditions like this one. Additionally, make sure to flush out excess salts by rinsing away any remaining fertilizer after each application using equal parts distilled white vinegar and lukewarm water (1 teaspoon per gallon).

Plant Types



Potting and Repotting

Common Pests

Common Issues

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