Arrowhead plant brown leaf tips and edges: causes and what to do
6 results in the diagnosis tree begin with brown tips and edges, 3 of them marked likely when the answers fit. They are ordered here for Arrowhead plant (Syngonium podophyllum), using what its sources say about humidity, soil moisture, cold tolerance, watering and feeding and one problem recorded for it.
Sources last read 14 September 2026.
Syngonium podophyllum is a species of aroid that is a popular houseplant. Common names include: arrowhead plant, arrowhead vine, arrowhead philodendron, goosefoot, nephthytis, African evergreen, and American evergreen. Wikipedia, CC BY-SA 4.0
Native range: Mexico to Trop. America (wet tropical). Also sold as African evergreen, American Evergreen, Arrow-Head Vine, Arrowhead Vine, nephthytis and Trileaf Wonder.
What Arrowhead plant’s sources say that bears on this
- Humidity
- ASHRAE recommends indoor relative humidity between 30% and 60%Penn State Extension · read 13 September 2026
- Soil moisture
- Moist but well-drainedRHS · read 13 September 2026
- Cold tolerance
- H1A — warmer than 15°CRHS · read 13 September 2026
- Watering
- During growth, water generously and feed every 3 or 4 weeks with a balanced liquid fertiliser. Water less in winter.RHS · read 13 September 2026
- Feeding
- While growing, water generously and feed every three or four weeks with a balanced liquid fertiliser.RHS · read 13 September 2026
How this shows up on a Arrowhead plant
Edges of the leaf blades brown while the middle stays sound
The arrowhead plant browns at the very tips first, and the brown line creeps back along the edges over weeks. The tissue is dry and brittle, not soft.
Penn State Extension notes that most indoor plants benefit from more humidity than a home heated in winter provides. The leaf edge, furthest from the veins, is where the shortfall shows.
Telling it apart: Whether the soil is dry too. Crisp edges with damp soil point at the air; with dry soil, at the watering.
Penn State Extension · read 13 September 2026Possible causes, likeliest first for a Arrowhead plant
Most likely cold
Ranked higher because Arrowhead plant's recorded problems point this way.
Its RHS hardiness rating puts this plant's cold floor at 15°C or above, so a cold windowsill at night is a strong explanation.
- H1A — warmer than 15°C RHS · read 13 September 2026
Why: Soft, dark patches rather than crisp ones are damaged tissue rather than dried tissue.
What to try:
- Move it away from the glass at night, or keep the curtain on the room side of the arrowhead plant.
- Leave damaged leaves until new growth appears, then remove the worst of them.
What would settle it: Where the arrowhead plant sits at night, and what the glass feels like at that hour. Damage that appeared after one cold night, on the side facing the window, is the pattern.
Most likely too little water
Ranked higher because Arrowhead plant's recorded problems point this way.
- Moist but well-drained RHS · read 13 September 2026
Why: Soil dry two inches down leaves the roots nothing to send up, and the leaf edges are the last tissue in line.
What to try:
- Water thoroughly, until it runs from the drainage hole.Useful: pot with drainage holes
- Check the soil with a finger every few days rather than watering on a fixed day.Useful: moisture meter
What would settle it: Water it thoroughly and watch the next new leaves. If they come in with clean edges under steadier watering, the edges were thirst.
Most likely a build-up of salts in the soil
- Loam; pH Acid or Alkaline or Neutral RHS · read 13 September 2026
Why: Minerals from tap water and fertiliser are left behind as water evaporates, and a white crust on the compost or the pot rim is where they show.
What to try:
- Water slowly and heavily until several times the pot's volume has run through the drainage hole, to wash the salts out.Useful: pot with drainage holes
- Scrape off the top layer of crusted compost and replace it.
What would settle it: Scrape the crust. If it is gritty and dissolves in water it is mineral; if it is fluffy it is mould, which is a different problem.
Less likely for a Arrowhead plant, still possible
Questions
- What usually causes brown tips and edges on a Arrowhead plant?
- For Arrowhead plant: most likely cold, most likely too little water and most likely a build-up of salts in the soil. Its RHS hardiness rating puts this plant's cold floor at 15°C or above, so a cold windowsill at night is a strong explanation.
- How can I tell which one it is on my Arrowhead plant?
- Is the browning crisp and dry, or soft and dark? Crisp and dry; Soft and dark.
- What do Arrowhead plant's sources say about its soil moisture?
- RHS: Moist but well-drained.
- What does this look like on a Arrowhead plant?
- The arrowhead plant browns at the very tips first, and the brown line creeps back along the edges over weeks. The tissue is dry and brittle, not soft. Telling it apart: Whether the soil is dry too. Crisp edges with damp soil point at the air; with dry soil, at the watering.
- Is Arrowhead plant safe to handle while I check it?
- Its sources list it as toxic to cats, dogs and people. Wash your hands after handling the roots or sap, and keep trimmings away from pets.
Other plants that show brown tips and edges
AlocasiaBrown brittle margins with a green centre
Dumb caneLeaf tips go crisp and brown
Elephant earCrisp margins that appear in winter
- No photograph yetLacy tree philodendronEdges of the leaf blades brown while the middle stays sound
MonsteraBrown brittle margins with a green centre
Peace lilyBrown tips on the newest leaves first
Something else wrong with the Arrowhead plant?
What this does not cover
This page orders a decision tree's results using a plant's sourced care. It has not seen your plant, its pot or its window, and two problems at once are common: that is the usual reason a confident answer turns out wrong. The questions in the diagnosis tool narrow it further than a list can.