How to Care for Dracaena (Dragon Tree & Corn Plant)

Few houseplants forgive neglect as gracefully as a dracaena. The spiky dragon tree on your office windowsill, the broad-leaved corn plant in the hotel lobby, the striped 'Lemon Lime' brightening a dim hallway — they are all dracaenas, and they all follow the same simple rulebook. This guide covers the whole family: what light they really need, how to water without triggering root rot, and the one tap-water quirk that causes those infamous brown leaf tips.

Meet the dracaena family

There are around 120 Dracaena species, but four dominate our homes. Dracaena marginata, the dragon tree, grows slim canes topped with narrow red-edged leaves. Dracaena fragrans, the corn plant, has wide, arching leaves on a thick trunk and can eventually flower indoors with an intensely sweet scent. 'Lemon Lime' and 'Warneckii' are striped cultivars of the same species, and Dracaena reflexa ('Song of India') offers yellow-margined whorls. Even lucky bamboo is secretly a dracaena — Dracaena sanderiana — and follows similar rules in soil.

Light

Most dracaenas are happiest in medium, indirect light — a couple of metres from a bright window, or beside a north- or east-facing one. They tolerate genuinely low light better than almost any other houseplant, but they slow down and lose leaf colour there: stripes fade, new leaves come in smaller. Direct midday sun is the opposite problem and bleaches or scorches the foliage. Variegated cultivars need brighter conditions than plain green ones to hold their pattern.

Watering

Overwatering is the number one dracaena killer. Their thick canes and roots store water, so let the top half of the pot dry out before watering again — in practice every 10–14 days in summer and as little as every 3 weeks in winter. Water thoroughly until it drains, then empty the saucer. A dracaena that stays wet develops root rot fast: mushy, wobbly canes and yellowing lower leaves are the classic signs.

Brown leaf tips: the tap-water problem

If your dracaena's leaf tips turn brown and crispy while everything else looks fine, your tap water is the usual suspect. Dracaenas are unusually sensitive to fluoride, chlorine, and dissolved salts, which accumulate in the leaf tips and burn the tissue. Low humidity and erratic watering make it worse, but water quality is the classic cause.

Tip: switch to filtered water, rainwater, or tap water left to stand overnight, and flush the pot through with generous water every couple of months to rinse out accumulated salts. Trim existing brown tips with clean scissors, following the leaf's natural shape — the damage never reverses, but new growth will come in clean.

Temperature and humidity

Dracaenas like the same temperatures you do: 18–27 °C is ideal, and anything below about 13 °C risks cold damage — keep them away from draughty doors and unheated conservatories in winter. Average room humidity is fine; if your air is very dry, an occasional shower or a pebble tray keeps leaf edges from crisping.

Soil, feeding, and repotting

Any free-draining houseplant compost works, ideally lightened with a little perlite. Dracaenas grow slowly and need little food: a half-strength balanced fertiliser once a month in spring and summer is plenty, and none at all in autumn and winter. Repot only every two to three years, one pot size up — they genuinely prefer being slightly root-bound.

Pruning a leggy dracaena

When a cane grows too tall or drops its lower leaves and turns into a bare stick with a tuft on top, just cut it. Slice the cane cleanly at whatever height you like: within a few weeks, new shoots sprout from below the cut, usually two or three at once, giving you a fuller plant. The removed top can be rooted in water or moist compost as a new plant. Spring is the best time, but indoors it works almost year-round.

Keep pets away

Warning: all dracaenas contain saponins and are toxic to cats and dogs, causing drooling, vomiting, and loss of appetite when chewed — cats are especially at risk. Keep plants out of reach, or choose a pet-safe species instead if you share your home with a determined nibbler.

Common problems at a glance

• Brown, crispy leaf tips — fluoride/salts in tap water, low humidity, or drought stress.
• Yellowing lower leaves plus wet soil — overwatering and early root rot; let it dry out and check the roots.
• Pale, washed-out leaves and faded stripes — too little light for a variegated cultivar.
• Sudden leaf drop after a move — cold shock; dracaenas resent temperatures under 13 °C.
• Sticky residue or fine webbing — check for scale insects, mealybugs, or spider mites.

Not sure whether those tips are tap-water burn or something worse? Photograph the leaf with PlantMe and the app will compare it against its library of common dracaena problems and give you a treatment plan in seconds.