Check these first
- Stick your finger 2 inches into the soil to check for dampness.
- Inspect the drainage holes to ensure they are not blocked.
- Check the base of the plant for signs of rot.
Likely causes
Overwatering
Most likelyHow to tell: The lower leaves turn yellow and feel soft or mushy to the touch.
What to do: Let the soil dry out completely for 7 to 14 days. Ensure your pot has drainage holes and never let the plant sit in a saucer of standing water.
Nutrient Deficiency
PossibleHow to tell: The leaves turn a pale, sickly yellow while the veins remain green.
What to do: Apply a balanced liquid fertilizer diluted to half strength once in the spring. Do not overfeed, as this plant prefers lean soil.
Find out what's wrong with your viper's bugloss
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
A single yellow leaf at the very base is often just natural aging. If multiple leaves turn yellow at once, you have a watering issue to address.
Stopping it coming back
Stick to the 7 to 14 day watering rhythm and only water when the top few inches of soil are dry.
Viper's bugloss: yellow leaves? Check yours with a photo
Every plant is a little different. Take a photo of your viper's bugloss 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 the yellow leaves?
- Yes, you can snip them off with clean scissors. This keeps the plant looking tidy and prevents potential fungal issues.
- Is my plant dying if it has yellow leaves?
- Not necessarily, but it is a sign that your care routine needs a slight adjustment. Most plants recover quickly once you correct the watering.
More problems with Viper's bugloss
- Why are there white spots on my Viper's bugloss?
- Why is my Viper's bugloss showing signs of root rot?
- Why is my Viper's bugloss growing so leggy?
- Why is my Viper's bugloss not flowering?
- Why is my Viper's bugloss drooping?
- Why are there bugs on my Viper's bugloss?
- Why are my Viper's bugloss leaves curling?
Back to the Viper's bugloss 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.

