Pocket BotanistCheck these first
- Feel the top 2 inches of soil.
- Check if the pot has proper drainage holes.
- Observe if the plant is sitting in direct, intense sun for too many hours.
Likely causes
Underwatering
Most likelyHow to tell: The soil feels bone dry and the grass blades look brittle or straw like.
What to do: Water the plant deeply until moisture runs out of the drainage holes. Aim to water every 7 to 14 days depending on the heat.
Low Humidity
PossibleHow to tell: The tips turn brown even though the soil remains consistently moist.
What to do: Move the plant to a spot with better airflow. If it is in a very dry area, consider grouping it with other plants to create a microclimate.
Find out what's wrong with your tall oatgrass
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.
Scan with your phone's camera to get the app
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When to worry
It is normal for older blades to brown as the plant matures. Worry if the browning spreads rapidly across the entire clump.
Stopping it coming back
Maintain a consistent watering schedule and ensure the plant gets plenty of sunlight to keep it strong.
Tall oatgrass: brown tips? Check yours with a photo
Every plant is a little different. Take a photo of your tall oatgrass and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
Get the app · Or check it from a photo now, free
Questions people ask
- Should I trim the brown tips off?
- Yes, you can snip the brown ends with clean scissors to keep the plant looking tidy. It will not harm the grass.
- Does tall oatgrass need misting?
- No, this grass prefers good airflow and does not require misting. Focus on deep watering instead.
Guides to these causes
More problems with tall oatgrass
- Why does my tall oatgrass have spots on its leaves?
- Why is my tall oatgrass looking leggy and weak?
- Why is my tall oatgrass drooping?
- Why are my tall oatgrass leaves turning yellow?
- Are there pests bothering my tall oatgrass?
- Why is my tall oatgrass showing signs of root rot?
- Why are my tall oatgrass leaves curling?
Back to the tall oatgrass guide
This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.