Dumb Cane | Plant Care Guide

The scientific name for the dumb cane is Dieffenbachia but honestly, we barely know how to say it so let’s all go with DC. There are loads of different types and each has a uniquely beautiful leaf colour and pattern. They are one of the most popular houseplants the world over mainly because they are readily available and easy to care for. Here are our top tips for caring for the dumb cane.

Difficulty Level – Easy


The dumb cane will thrive in medium indirect light. Direct sunlight, however, will fry its delicate leaves.


Allow the top of the soil to dry out about two inches between waters. Cut back watering in the cooler months to give the plant a chance to rest and go semi-dormant. And don’t leave your dumb cane sitting with water in the drip tray, this is the fastest way to kill any plant!


Feed your dumb cane with a slow-release fertiliser once every six months following the instructions on the packet (remember, when you receive a plant from Green Assembly, it has enough slow-release fertiliser to last the first six months). We love Troforte slow-release for the miracle-working growth magic it seems to cast on all our indoor plants. During the warmer months, the dumb cane plant likes a drink of the stinky liquid fish stuff (like Seasol) bi-monthly, again be sure to follow the dilution instructions on the packet before you add this otherwise the foliage can burn.

Watch out! This guy is toxic to pets and mini me’s if eaten.


Use a soil moisture metre (AKA the handiest indoor plant tool ever invented) to check the soil of any plant before you water. That way you don’t get your hands dirty and you get an accurate reading of just how moist the soil is. PLUS our metres can be used for all your plants and you will never need a refill.