Syngonium: brown, crisp leaf tips

What it is likely to be on syngonium

1. Dry air

   Candidate 1very common on this plant

   ·source

   Sourced guidancehigh confidence

   • Royal Horticultural Society: Houseplants — brown leaf tips
   • Home and Garden Information Center — Clemson Cooperative Extension: Indoor plants — humidity

   Checked 2026-08-13

   Crisp brown leaf tips and edges on plants from humid origins, with the rest of the leaf still green and the compost adequately moist. It is the standard complaint of calatheas, ferns and dracaenas in a centrally heated British house in winter, and it is routinely misdiagnosed as underwatering.

   Points towards it

   • · the tip is the furthest point from the roots and dries first, so a humidity problem shows there before anywhere else
   • · central heating in a British winter takes indoor humidity far below what these plants evolved in
   • · nothing was done differently — the air changed, which is what makes this so often missed

   Argues against it

   • · a vein pattern or discrete spots point at nutrition or disease rather than at water lost from the tip — this rules it out entirely.
   • · sodden compost suggests the roots are failing to supply the leaf for a different reason, and the tips brown either way

   Check this next

   Look at the boundary between brown and green, and check when it started. Dry air leaves a narrow dry brown rim with a thin yellow band inside it, on tips and edges only, and it appears through the winter on plants standing near a radiator — while the rest of the leaf stays a good colour. Brown that spreads inward as a soft patch, or that arrives in midsummer, is not this.

   What to do now

   Move the plant off the radiator shelf and away from hot dry draughts, group these plants together, and stand the pot on a tray of damp gravel — grouping and a moist tray raise local humidity in a way that misting for a few seconds a day does not. Trim the brown tips back to just inside the green with scissors if they bother you; they do not regrow green.

   ·source

   Sourced guidancehigh confidence

   • Royal Horticultural Society: Houseplants — humidity

   Checked 2026-08-13

2. Pot-bound

   Candidate 2common on this plant

   ·source

   Sourced guidancemoderate confidence

   • Royal Horticultural Society: Houseplants — potting and repotting
   • Plant Finder — Missouri Botanical Garden: Houseplants — root restriction

   Checked 2026-08-13

   A root system that has filled its container and has nowhere left to go: roots circling the inside of the pot or emerging from the drainage holes, compost that dries out within a day of watering, and growth that has stalled despite feeding. The plant is short of both water and nutrients because there is almost no compost left to hold either.

   Points towards it

   • · a pot that is mostly root holds very little water and reads dry again within a day or two of being watered
   • · every trailing stem is fed by the same congested root ball, so the tips brown right across the plant rather than on one side
   • · the plant has simply outgrown its pot on unchanged care, which is why nothing the owner did appears to explain it
   • · this is an indoor container diagnosis

   Argues against it

   • · compost that stays wet is not a root ball that has run out of room, and points at the roots being damaged rather than crowded
   • · a plant that has just been given fresh compost and a larger pot is not short of root room — this rules it out entirely.
   • · recent feeding offers accumulated salt as a competing explanation for a browned tip

   Check this next

   Look at the drainage holes and then at how fast it dries. Roots visibly circling out of the base, or a solid mat of root that holds the shape of the pot when the plant is lifted out, is one half; needing water every two or three days when the same plant used to go a week is the other. Both together is the diagnosis. Dry air would brown the tips of everything in the room equally and would not change how quickly the pot dries out, which is the check that separates them.

   What to do now

   Repot into a container one size larger — about two to four centimetres more across, not several — using fresh peat-free houseplant compost, and tease the outer roots loose if they have set into a circling mat. Water it in well and keep it out of direct sun for a week or two while it settles. If you would rather keep the plant the size it is, take it out, cut the root ball back by roughly a third along with a similar proportion of the topgrowth, and return it to the same pot with fresh compost. Trimming the brown tips is cosmetic and does not change how much root room the plant has.

   ·source

   Sourced guidancemoderate confidence

   • Royal Horticultural Society: Houseplants — potting and repotting

   Checked 2026-08-13

Narrow it down

This page lists everything at once, which is the right shape for reading and the wrong shape for deciding. The interactive tool asks one question at a time, starting with whichever would separate these causes fastest, and stops as soon as further answers would not help.

Opens with the plant and the symptom already set. Nothing you answer is stored or sent anywhere — the answers live in the address bar and nowhere else.

What this does not cover

These are the causes GrowingHQ holds rules for on syngonium — not every cause there is. Where several problems look alike, the honest answer is often that they cannot be told apart by eye, and a page that named one would be guessing. If none of the above fits, the general brown, crisp leaf tips page lists causes across all plants, and the Syngonium profile lists the problems it is prone to.