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Plant care

Corn plant (mass cane) care

Dracaena fragrans

Also called mass cane, cornstalk dracaena, fragrant dracaena.

RHS H1bUSDA 10-12Toxic to petsIndoor 1.5-2 m indoors

Watering rhythm

10-14days

When the top half of the soil is dry, every 10-14 days

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Light

Medium indirect light (a couple of metres from a window)

Soil

Free-draining houseplant mix

Humidity

40-60%

Temp

18-26°C

Pet safety

Toxic to pets

Mature size

1.5-2 m indoors

Care at a glance

Light

The Goldilocks zone. Not the south-facing windowsill (too hot, too direct), not the back of the room (too dim, growth stalls). Medium to bright indirect light; tolerates low light at the cost of slower growth. If you can't decide, a free phone lux-meter app aimed at the leaf at noon should read between 800 and 1,500 lux.

Watering

Watering corn plant: when the top half of the soil is dry, every 10-14 days. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Fluoride and chlorine sensitive — leaf-tip browning signals tap-water issues.

Soil and pot

Corn plant grows best in free-draining houseplant mix. Standard compost with 25% perlite. Deep pots support the heavy trunk. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Corn plant sits happiest at around 40-60% humidity and 18-26°C (65-80°F). Tolerates dry household air. If you keep the room above 18 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed corn plant sparingly. Quarter-strength balanced feed every 6-8 weeks during growth. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on corn plant in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Brown leaf tips — Tap-water fluoride or chlorine; switch to filtered or rainwater.
  • Yellowing lower leaves — Normal cane formation as old leaves shed.
  • Soft black trunk — Stem rot from overwatering — usually fatal.
  • Sticky leaves — Scale insects or mealybugs; treat with horticultural oil.

Propagation

Cut cane sections, root the tops in water and leave the lower stub to resprout. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Corn plant is toxic to pets. ASPCA lists Dracaena fragrans as toxic to cats and dogs due to saponins. Cats can experience dilated pupils, vomiting, and depression. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Corn plant care — frequently asked questions

What is the common name for Dracaena fragrans?

Dracaena fragrans is most commonly called Corn plant, but it is also known as mass cane, cornstalk dracaena, fragrant dracaena. The names refer to the same species, so care instructions for Corn plant apply identically to anything sold as mass cane.

How much light does corn plant need?

Corn plant grows best in medium indirect light (a couple of metres from a window). Medium to bright indirect light; tolerates low light at the cost of slower growth.

How often should I water corn plant?

Water corn plant when the top half of the soil is dry, every 10-14 days. Fluoride and chlorine sensitive — leaf-tip browning signals tap-water issues. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is corn plant toxic to cats and dogs?

Corn plant is toxic to pets. ASPCA lists Dracaena fragrans as toxic to cats and dogs due to saponins. Cats can experience dilated pupils, vomiting, and depression.

What USDA hardiness zone does corn plant grow in?

Corn plant is rated for USDA zone 10-12 (indoor in most US homes) and RHS hardiness H1b. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Corn plant deep-dive guides

Every aspect of corn plant care, each with its own calibrated guide:

Featured in these plant shortlists

Corn plant qualifies for 6 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Corn plant is also known as mass cane, cornstalk dracaena, and fragrant dracaena.