Pocket BotanistCheck these first
- Check if the air near the plant is very dry.
- Look for white mineral deposits on the soil surface.
- Feel the soil to see if it has been drying out too much between waterings.
Likely causes
Low humidity
Most likelyHow to tell: The tips of the leaves become dry and brittle. This often happens during winter when indoor heating is running.
What to do: Group your plants together to create a more humid microclimate. You can also place a tray of water and pebbles near the pot.
Mineral buildup
PossibleHow to tell: The tips turn brown even when the soil feels moist. You might see a white crust on the surface of the soil.
What to do: Flush the soil with distilled or filtered water to wash away excess salts. Avoid using softened water, which can contain too much sodium for the plant.
Find out what's wrong with your mexican petunia
The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
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When to worry
Brown tips are rarely fatal but indicate the plant is stressed. If the browning spreads to the rest of the leaf, it is time to change your environment or water source.
Stopping it coming back
Maintain consistent moisture in the soil and keep the plant away from direct heat vents or cold drafts.
Keep your mexican petunia healthy from here
Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked. Identification and a health check are free.
Questions people ask
- Can I trim the brown tips off?
- You can trim the brown parts off for aesthetics. Just be careful not to cut into the healthy green tissue.
- Does tap water hurt my plant?
- Most tap water is fine, but if your water is heavily treated or softened, it can cause salt buildup. Using filtered water can help if you notice persistent browning.
More problems with Mexican petunia
- Why are there tiny webs on my Mexican petunia?
- Why is my Mexican petunia not blooming?
- Why is my Mexican petunia drooping?
- Why is my Mexican petunia looking so leggy?
- Why are my Mexican petunia's leaves turning yellow?
- Why is my Mexican petunia losing its leaves?
- Why does my Mexican petunia look sick at the roots?
- Why are my Mexican petunia leaves curling?
Back to the Mexican petunia guide
This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.