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Plant care

Dragon tree (red-edge dracaena) care

Dracaena marginata

Also called Madagascar dragon tree, red-edge 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

Picture the indirect light an east-facing window gives mid-morning — that's the brightness dragon tree grows fastest in. Tolerates medium light; brightest colour develops in bright indirect light. You'll know it's right when new leaves come out the same size and colour as the established ones. Smaller, paler new leaves = move closer to the window.

Watering

Aim for when the top half of the soil is dry, every 10-14 days for dragon tree, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Sensitive to fluoride and chlorine — use rainwater or filtered water where possible.

Soil and pot

Dragon tree grows best in free-draining houseplant mix. Standard compost with 25% perlite. A deep pot suits the long taproot. 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

Dragon tree sits happiest at around 40-60% humidity and 18-26°C (65-80°F). Tolerates dry air; brown leaf tips signal humidity or water-quality issues. 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 dragon tree sparingly. Quarter-strength balanced liquid feed every 6-8 weeks in growing season. 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 dragon tree in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Brown leaf tips — Fluoride or chlorine sensitivity; use filtered water.
  • Yellow lower leaves — Normal leaf shed at the base as the trunk forms.
  • Soft trunk — Root rot from overwatering; usually fatal once visible.
  • Spider mites in dry air — Webbing under leaves; rinse foliage and treat with horticultural soap.

Propagation

Trunk cuttings 15-20 cm long root in moist mix in 6-8 weeks under warmth. 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

Dragon tree is toxic to pets. ASPCA lists Dracaena marginata as toxic to cats and dogs due to saponins. Symptoms include vomiting, dilated pupils in cats, and depression. Rarely serious but worth keeping out of reach. 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.

Dragon tree care — frequently asked questions

What is the common name for Dracaena marginata?

Dracaena marginata is most commonly called Dragon tree, but it is also known as Madagascar dragon tree, red-edge dracaena. The names refer to the same species, so care instructions for Dragon tree apply identically to anything sold as red-edge dracaena.

How much light does dragon tree need?

Dragon tree grows best in medium indirect light (a couple of metres from a window). Tolerates medium light; brightest colour develops in bright indirect light.

How often should I water dragon tree?

Water dragon tree when the top half of the soil is dry, every 10-14 days. Sensitive to fluoride and chlorine — use rainwater or filtered water where possible. 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 dragon tree toxic to cats and dogs?

Dragon tree is toxic to pets. ASPCA lists Dracaena marginata as toxic to cats and dogs due to saponins. Symptoms include vomiting, dilated pupils in cats, and depression. Rarely serious but worth keeping out of reach.

What USDA hardiness zone does dragon tree grow in?

Dragon tree 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.

Dragon tree deep-dive guides

Every aspect of dragon tree care, each with its own calibrated guide:

Featured in these plant shortlists

Dragon tree qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Dragon tree is also commonly called Madagascar dragon tree or red-edge dracaena.