Should I cut off all the yellow leaves?

Yes, it is best to remove them so the plant can focus energy on healthy growth. Use clean scissors to avoid spreading any potential fungus.

Can I save a plant with downy mildew?

If you catch it early, you can save it by removing infected parts and improving airflow. If the whole plant is covered, it is usually better to discard it.

Virginia pepperweed: yellow leaves, causes and fixes

Check these first

Check the undersides of leaves for fungal growth.
Feel the soil to see if it is soggy.
Inspect the base of the stem for signs of rot.

Likely causes

Downy mildew
Most likely
How to tell: You will see yellow patches on the leaves that eventually turn brown. This often happens when the air is damp and leaves stay wet for too long.
What to do: Remove the affected leaves immediately to stop the spread. Improve air circulation around the plant and avoid overhead watering to keep foliage dry.
Overwatering
Most likely
How to tell: The leaves turn yellow and feel soft or mushy. The soil will stay wet for more than a week.
What to do: Let the top inch of soil dry out before watering again. Ensure your pot has drainage holes so extra water can escape.

Yellow leaves on other plants

Find out what's wrong with your virginia pepperweed

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.

When to worry

If the yellowing spreads rapidly across the whole plant, it is likely a severe fungal issue. It is normal for the very bottom leaves to yellow as the plant matures.

Stopping it coming back

Water only at the base of the plant and keep the leaves dry. Provide plenty of sunlight to keep the soil from staying wet too long.

Virginia pepperweed: yellow leaves? Check yours with a photo

Every plant is a little different. Take a photo of your virginia pepperweed 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.

Get the app · Or check it from a photo now, free

Questions people ask

Should I cut off all the yellow leaves?: Yes, it is best to remove them so the plant can focus energy on healthy growth. Use clean scissors to avoid spreading any potential fungus.
Can I save a plant with downy mildew?: If you catch it early, you can save it by removing infected parts and improving airflow. If the whole plant is covered, it is usually better to discard it.

Guides to these causes

Downy Mildew

Why are my Virginia pepperweed leaves turning yellow?

Check these first

Not sure what's wrong with your virginia pepperweed?