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Check these first
- Feel the soil to see if it is waterlogged.
- Check the drainage holes to ensure they are not blocked.
- Look for signs of nutrient deficiency in the older leaves.
Likely causes
Overwatering
Most likelyHow to tell: The leaves turn yellow starting from the base and the soil feels constantly soggy. You might notice a sour smell coming from the pot.
What to do: Stop watering immediately and let the top 2 inches of soil dry out. Ensure your pot has drainage holes and empty the saucer after every watering.
Nutrient Deficiency
PossibleHow to tell: The entire plant looks pale or yellow, especially the older leaves. Growth slows down significantly despite proper light.
What to do: Apply a balanced, water soluble fertilizer diluted to half strength. Feed the plant once every 4 to 6 weeks during the active growing season.
Find out what's wrong with your timothy grass
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
A single yellow leaf at the base is normal as the plant cycles through old growth. If the yellowing spreads rapidly across the whole plant, you have a problem.
Stopping it coming back
Always check the soil moisture with your finger before watering to ensure the top layer has dried slightly.
Timothy grass: yellow leaves? Check yours with a photo
Every plant is a little different. Take a photo of your timothy grass 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 cut off yellow leaves?
- Yes, you can snip off yellow leaves with clean scissors. This keeps the plant looking tidy and allows it to focus energy on new growth.
- How often should I water?
- Water every 3 to 7 days depending on the heat. Always feel the soil first to ensure it is moist but not soaking wet.
More problems with Timothy grass
Back to the Timothy grass 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.