Dragon Tree
Dracaena marginata · the Madagascar Dragon Tree
It comes from the islands of Madagascar and Mauritius, where it grows as a shrub or small tree to about six metres. The skinny indoor trunk is the same lineage as the snake plant. Both are now in the genus Dracaena.
Family
Asparagaceae
Origin
Madagascar
In the wild
Grows to 6 m
Indoors
1.8–3 m
Growth
Slow
With pets
Toxic
Where it's from
Madagascar and Mauritius
Indian Ocean islands
Tropical island scrub and forest in Madagascar and Mauritius, where wild leaves reach 30 to 90 cm long.
Outdoors: zones 10–12
Grown outdoors only in frost-free tropics. Elsewhere it must overwinter inside.
Not invasive
Not listed as invasive anywhere.
The cane is a diary
Each diamond-shaped scar marching up the cane is one leaf the plant has shed. It literally writes its own age into its stem. You can also decapitate that cane and it will grow a new crown of heads below the cut.
A synonym for a name
The trade name Dracaena marginata is itself a synonym. Botanists fold it into Dracaena reflexa var. angustifolia.
Self-cleaning trunk
Lower leaves drop with age, leaving the bare grey cane and its diamond scars.
Beheading makes more
A cut cane re-sprouts new heads below the cut, so one cut both multiplies and bushes out the plant.
How to keep it
LightLow to bright indirect
Tolerates low light, but the leaf colour fades in deep shade. Protect from direct sun and drafts.
WaterLet the top dry
Keep uniformly moist in summer, drier in winter, letting the top of the soil dry between waterings.
HumidityAverage is fineTolerates dry household air.
TemperatureAbove 10°CNot frost-hardy. Tolerates a wide range of normal indoor temperatures.
SoilLoamy, well-drainedA peaty, free-draining potting mix.
FeedingGrowing season onlyA light feed in spring and summer.
DifficultyEasyForgiving and drought-leaning, with good low-light tolerance.
With petsToxicSaponins. Vomiting, sometimes with blood, depression, drooling, and dilated pupils, especially in cats.
PropagationStem and cane cuttingsBoth the leafy top and bare cane segments root in water or moist mix.
RepottingEvery 2 to 3 yearsOr when root-bound. It tolerates being pot-bound.
What the data says
What it costs
One of the most widely produced houseplants, the opposite of a collector bubble.
$15–50
Large multi-cane tree specimens run $50 to $120. Named cultivars like Colorama and Tarzan stay inexpensive, with no rarity premium.
It does not clean your air
It was a 1989 NASA plant, removing solvents in a small sealed chamber. That real lab result does not mean it purifies a real room.
100–1,000
plants you would need in one room to match a building's ventilation (Cummings and Waring, 2019). A handsome plant that nudges a sealed jar, not a home air purifier.
IUCN · Least Concern
In the wild
A Madagascar plant that is genuinely abundant both in our living rooms and in the wild.
The accepted species, Dracaena reflexa, is assessed Least Concern over a wide western-Indian-Ocean range. The conservation tension in this genus lives elsewhere: the true dragon's-blood trees like D. draco and D. cinnabari are threatened, this one is not.
When it sulks
Brown leaf tipsThe classic complaint. Fluoride, salt or chlorine in tap water, or dry air. Switch to filtered or rainwater.
Yellowing and soft baseOverwatering and root rot.
Lower leaves droppingNormal ageing as the cane self-cleans. Sudden drop means a cold draft or stress.
Pale or faded colourToo little light.
PestsSpider mites, mealybugs and scale.
Varieties & company
The varieties
TricolorColoramaBicolorMagentaTarzan
Pairs with · keep apart from
Snake PlantZZ PlantSucculentsFernsCalatheaPeace Lily
A new plant, every week.
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