Houseplant · Asparagaceae
Madagascar Dragon Tree
Dracaena reflexa var. angustifolia
Hand it bright indirect light and fluoride-free water, and the dragon tree pretty much takes care of itself.
Bright indirect
60–70°F · 16–21°C
USDA 10–12
6–20 ft · 1.8–6.1 m
Overview
The Madagascar dragon tree is about as forgiving as houseplants get, which makes it a great pick if you're still finding your feet. It throws up slim canes topped with arching, sword-shaped leaves trimmed in red, and once it's settled it barely asks for a thing. It's originally from Madagascar and the islands around it, and indoors it grows slowly into a sculptural, tree-like shape that fills a bright corner without taking over the room.
A big part of the charm is how it puts up with a busy schedule. It likes bright indirect light best, sure, but it'll handle medium light and even a dim spot just fine, and because it grows so slowly you won't be repotting it every five minutes. The one thing it can't stand is the fluoride in regular tap water, which burns the leaf tips, so distilled water or rainwater keeps it looking its best.
There are a few named versions to choose from, from leaves striped in three colors to canes flushed deep red, so you can grab whichever suits your space. And whatever you pick? Underneath the color it's the same laid-back plant.
Care
The short version: give it bright indirect light, water with distilled water or rainwater once the top dries out, keep it warm at 60°F to 70°F (16°C to 21°C), and feed it lightly through spring and summer.
Light
The dragon tree's happiest in bright indirect light, but honestly it's way more easygoing than most. It'll take medium light, low light, and partial shade without complaint, though a brighter spot keeps the color strong and stops the stems from reaching for the window.
Water
Let the top of the soil dry out first, then water it well and tip out whatever ends up in the saucer. Keep it evenly moist through spring and summer, then back off once fall rolls into late winter. Go with distilled water or rainwater if you can, since the fluoride in tap water scorches those tips, and skip the cold stuff.
Soil
Pot it up in a loamy, peaty, well-drained mix with plenty of organic matter. Shoot for a slightly acidic pH of 6.0 to 6.5, which has the bonus of keeping fluoride from piling up around the roots.
Temperature
Keep it warm and steady at 60°F to 70°F (16°C to 21°C), with nights a little cooler. Cold drafts? It really can't handle them, and a sudden chill will have it dropping leaves before you know it.
Humidity
Regular room humidity is fine, and it gets by down to about 30%. A bit of extra moisture helps in dry, heated rooms, and it makes spider mites less likely to set up shop.
Feeding
Feed it once a month through spring and summer with a liquid houseplant fertilizer, then give it a break over the cooler months. Go light on it, and steer clear of anything with superphosphate, because the fluoride in there burns the leaves.
Pruning
It handles pruning like a champ, so when it gets too tall just cut the canes back and they'll resprout below the cut. The lowest leaves drop off on their own as the canes age, leaving those diamond-shaped scars that give the bare stems their look.
Repotting
Being a slow grower, it only wants a new pot every 2 to 3 years, or whenever roots start circling, poking out the drainage holes, or water runs straight through. Otherwise? It's perfectly happy left alone in a snug pot.
Size & spacing
Indoors it usually tops out around 6 feet, but if you let it go it can hit 6 to 20 feet (1.8 to 6 m) tall and spread 3 to 10 feet (91 cm to 3 m) wide, so give a grown one some room for that arching crown.
Troubleshooting
Wondering where to look when something's off? Start with the leaves, because that's where the dragon tree shows its hand, and it usually comes down to the water or the air around it. Catch the early signs and you can fix things before they get worse, so just find the one that matches and act while it still helps.
Soft, mushy stems and a plant that's fading
Soggy soil plus browning leaves and a soft base usually means root rot, which creeps in when the roots stay wet too long. Healthy roots feel firm and pale, so brown, mushy ones pretty much confirm it. Cut back on watering, repot into fresh well-drained mix and trim off the rotted roots, and make sure the pot drains freely with no water sitting in the saucer.
Fix:
- Reduce watering and let the soil surface dry between waterings
- Repot into fresh, well-drained mix and trim rotted roots
- Ensure the pot has drainage holes and empty saucers
A bunch of leaves dropping all at once
When a dragon tree ditches a load of leaves in a hurry, it's usually shock from a cold draft, a sudden move, or a temperature swing. Soggy soil and a nasty pest outbreak can set it off too. Park it somewhere stable at 60°F to 70°F (16°C to 21°C), away from drafts and heat sources, sort out the watering, and give the leaves a once-over for bugs.
Fix:
- Move the plant away from drafts and heat/cold sources and keep temperatures 60-70°F
- Correct watering and ensure the pot drains freely
- Inspect for and treat insect infestations
Fine webbing and pale speckling on the leaves
Fine webbing under the leaves and a dusting of pale speckles? That's spider mites, and they love hot, dry indoor air. Give the foliage a rinse and bump up the humidity to make the plant less appealing to them. Treat it with insecticidal soap or horticultural oil, and keep at it until the mites are gone for good.
Fix:
- Rinse foliage and raise humidity
- Treat with insecticidal soap or horticultural oil, repeating as needed
Cottony white clumps or hard bumps with a sticky film
Cottony white clusters tucked into the leaf joints are mealybugs, while hard or soft bumps along the stems are scale, and both leave a sticky honeydew behind. Dab the bugs off with a swab of rubbing alcohol, then follow up with insecticidal soap or horticultural oil as often as it takes. Move the plant away from your others so the pests can't spread.
Fix:
- Wipe or dab insects with an alcohol-moistened swab
- Treat with insecticidal soap or horticultural oil, repeating as needed
- Isolate the plant to prevent spread
Brown, crispy tips along the leaf edges
Nine times out of ten this is fluoride damage, because the dragon tree just doesn't get along with the fluoride in ordinary tap water. Salt buildup from heavy feeding or superphosphate fertilizer can do the exact same thing. Switch over to distilled water or rainwater, keep the pH between 6.0 and 6.5, ease up on the feeding, and trim the ruined tips to neaten it up.
Fix:
- Switch to distilled water or rainwater, or let tap water stand 24 hours before use
- Maintain soil pH between 6.0 and 6.5
- Stop using fertilizers containing superphosphate and avoid over-fertilizing
- Trim damaged tips for appearance
Lowest leaves yellowing and dropping off
No need to panic, because this is just normal aging. As each cane gets taller it drops its oldest bottom leaves and leaves behind those diamond-shaped scars that give the dragon tree its look, while the crown up top stays green and happy. Pull off the spent leaves if you like things tidy, and cut a leggy cane back when you want it to branch, since it'll resprout.
Fix:
- No action needed; remove spent leaves for tidiness
- Cut back leggy canes if a fuller habit is wanted - they will resprout
Dead spots and lesions dotted on the leaves
Those distinct spots or dead patches usually come from a leaf spot disease, though thrips and other chewing bugs can leave marks that look a lot alike. Pull off the affected leaves, open up the air around the plant, and keep water off the foliage so spores can't get a grip. And if you spot bugs, treat those too.
Fix:
- Remove affected leaves
- Improve air circulation and avoid wetting foliage
- Treat insect pests if present
Toxicity
Here's the deal: this one isn't safe for pets to chew. Every part holds saponins, which upset an animal's stomach if it gets a mouthful, and cats are the ones most likely to give it a try. People are basically fine around it, but nobody should be snacking on it either, so keep it up and out of reach of pets and little kids.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds
Safe for
People
Cats Moderate
Cats are the ones most likely to nibble the thin leaves, and the saponins hit them the hardest. Look for vomiting, sometimes streaked with blood, plus drooling, a lost appetite, and a flat, down mood, and watch for widened, dilated pupils, which are a real giveaway.
Dogs Moderate
A dog that chews the leaves might throw up, sometimes with a little blood, and turn dull and off its food, usually with plenty of drooling thrown in.
Horses Moderate
The ASPCA lists the dragon tree as toxic to horses too, where the same saponins bring on stomach upset, drooling, and a sluggish, down manner.
Rabbits Caution
The saponins that bother other animals would upset a rabbit's gut just as easily, so keep the leaves well out of reach and treat any nibbling as a reason to ring the vet.
Livestock Caution
Grazing animals like goats and sheep can react to the same saponins with drooling and digestive upset, so fence the plant off from anywhere they wander.
Birds Caution
A pet bird that picks at the foliage might wind up with an upset crop and a quiet, off-color stretch, so it's safest kept well away from the cage.
People Low
People are basically safe around the dragon tree, and a stray nibble does little more than leave a faintly bitter taste. Still, none of it is meant for eating, so steer young children away from the leaves.
Keep out of reach of pets; cats in particular may chew the thin leaves. Ingestion of any plant material can also cause general GI upset
Helpline numbers
United States
ASPCA Animal Poison Control: (888) 426-4435 (fee applies)
United Kingdom
Animal PoisonLine: 01202 509000 (fee applies)
Australia
Animal Poisons Helpline: 1300 869 738
Varieties
Most of the dragon trees you'll run into are one of just a few named forms, and what really tells them apart is the leaf color. Here are the ones worth knowing by name.
'Tricolor'
Every blade carries three colors at once, with stripes of green, cream, and red running its length.
'Colorama'
It's the most colorful of the bunch, with broad reddish margins that flush the whole plant pink.
'Bicolor'
A simpler two-tone look, with green leaves striped in reddish bands.
'Magenta'
It's named for the deep reddish-purple that edges every leaf.
'Tarzan'
The beefy one, with thicker canes and a fuller, more upright crown of leaves.
How to propagate
Want more dragon trees? They're easy to multiply, and even one tall, leggy plant can give you a handful of new ones from the same canes.
Stem cuttingsEasy
Spring or late summer · Several weeks to root
Cuttings are the easy way to make more dragon trees, no question. Take them in spring or late summer, and you can root tip cuttings, chunks of bare cane, or basal shoots pulled from the base. Just stand them in moist mix and give them several weeks to put down roots.
Air layeringModerate
Spring or summer · Several weeks
Air-layering really shines on a tall, leggy cane you want to shorten without losing the top. Do it in spring or summer and let it root right where it is over several weeks before you cut the new plant free.
DivisionModerate
Spring at repotting · Several weeks
Division is a tidy option at repotting time in spring. Separate the basal shoots and offsets from the parent, pot them up on their own, and they'll take several weeks to root into plants of their own.
Myths
A dragon tree will clean the air in your home.
Nice thought, but it doesn't hold up. A review of chamber studies found that potted plants do almost nothing for indoor air at any realistic scale. One plant cleans a tiny amount, and you'd need 10 to 1,000 plants per square meter to match what normal ventilation already does. So keep the dragon tree because you love it, not to scrub the air.
Dropping its lower leaves means the plant is dying.
Not at all, because losing those bottom leaves is just how the canes grow taller. The plant sheds its oldest leaves and leaves behind the diamond-shaped scars that mark the bare stem, all while the crown up top stays full and green. A little leaf drop from the base is healthy, not a warning sign.