Why does my indoor palm have brown frond tips?

Let me start by separating two things this coast constantly conflates, because it determines everything that follows. The palms in your yard, the queen palms and sabals and the rest, are landscape plants growing in alkaline sand, and their classic problems are nutrient deficiencies. The palm in the pot beside your sofa, most likely an areca (Dypsis lutescens), a parlor palm (Chamaedorea elegans), a kentia (Howea forsteriana) or a majesty palm (Ravenea rivularis), is a container houseplant, and its problems are houseplant problems.

That matters because most palm advice you will find online, including the advice about potassium and manganese that is genuinely correct for a yard palm, is the wrong medicine for a plant in a pot in an air-conditioned room. Feeding an indoor palm palm-special fertilizer for a problem it does not have adds salts to the soil and makes the browning worse.

The most likely cause: dry indoor air

All of these species come from humid tropical understoreys, and every one of them has finely divided fronds, which means an enormous amount of leaf edge relative to leaf area. Edge is where a leaf loses water fastest, so the tips go first.

Air conditioning is the reason your house is drier than the rainforest and drier than your own back garden. Cooling air condenses moisture out of it; that is how the machine works. So the state with the highest outdoor humidity in the country produces living rooms that behave like a heated northern house in February. A palm standing in the airflow of a vent has it worst of all, and it will brown on the vent side first, which is a useful clue.

The other causes, ranked

• Minerals and fluoride in tap water. Palms sit alongside dracaenas, spider plants, and calatheas on the sensitive list, and our tap water is hard as well as treated. Tip burn concentrated on this palm while thick-leaved plants nearby are untouched points straight here. Try distilled or collected rainwater for a month.
• Mineral salt buildup. White crust on the soil surface or pot rim. Hard tap water carries dissolved minerals and fertilizer is itself a salt, and in a pot neither has anywhere to go. Flush the pot with generous plain water several times, letting it run out of the bottom, every couple of months.
• Inconsistent watering. Swinging between saturated and bone dry costs you tips both ways. Arecas and majesties in particular want evenly moist, never waterlogged. Soil pulling away from the pot walls is the tell for a hard dry-down.
• Roots that are already damaged. The one people miss. A palm kept permanently wet develops root rot, and damaged roots cannot deliver water, so the fronds brown exactly as if the plant were parched. Watering more makes it worse. Check the soil and the base before you increase anything.
• Spider mites. Extremely common on indoor palms, because the dry air that browns the tips is also ideal mite weather. Fine stippling and webbing between leaflets. See spider mites.
• Normal aging. The lowest, oldest frond on a palm browns off and dies as a matter of course. One frond at a time, from the bottom, on a plant pushing new spears from the centre, is not a problem.

How to tell them apart

• Tips only, evenly, across many fronds: air, water quality, or salts.
• Only sensitive species affected in the same room: water quality.
• White crust on soil or pot: salts. Flush before anything else.
• Worse on one side of the plant: follow it back to a vent or a window.
• Soil wet days after watering, base soft: roots, and this is the urgent one.
• Fine pale speckling, webbing between leaflets: mites.
• Oldest bottom frond only, new spears healthy: normal aging, leave it alone.

What to do this week

1. Move it out of direct AC airflow and out of direct sun.
2. Put a hygrometer in the room, and add a humidifier or pebble tray if you are well below 50%.
3. Flush the pot thoroughly with plain water to move the accumulated mineral salts from tap water and fertilizer out.
4. Switch to distilled or rainwater for a month as a test.
5. Water when the top inch is dry, thoroughly, and empty the saucer or cachepot every time.
6. Check leaflet undersides for mites while you are handling it.
7. Trim brown tips for looks, following the leaflet taper. Leave partly-green fronds attached.

When to call me

Call if the browning is spreading down whole fronds rather than staying at the tips, if the base of the plant is soft, or if a large specimen palm is going backwards despite everything above, since these are expensive plants to replace. A health diagnosis visit checks the roots and measures the light and humidity in the actual room rather than guessing, and you get a written plan the same week. If it turns out the plant simply lives in the wrong corner of the house, that is a five-minute fix once somebody has measured it.

Related: the same story across your whole collection is brown tips on indoor plants. If your question is actually about the palms in the yard, that is yellowing landscape palm fronds, which is a genuinely different subject.