Should I use a fungicide?

Fungicides are rarely necessary if you fix the airflow and watering habits. Focus on environmental changes first.

Will the spotted leaves turn green again?

No, the spots are permanent damage. The plant will grow new, healthy leaves once the fungal issue is resolved.

Cider gum: spots, causes and fixes

Check these first

Look at the undersides of the leaves for signs of fuzzy growth.
Check if the plant is crowded by other plants.
Observe if you are getting water on the leaves when you water.

Likely causes

Fungal leaf spot
Most likely
How to tell: Small brown or black spots appear on the leaves, sometimes with a yellow halo.
What to do: Remove and dispose of the affected leaves to prevent spores from spreading. Increase air circulation by spacing plants further apart or using a small fan.
Overhead watering
Possible
How to tell: Spots appear after you have been watering the foliage directly.
What to do: Water at the base of the plant rather than over the leaves. Keep the foliage dry to discourage fungal growth.

Leaf spots on other plants

Find out what's wrong with your cider gum

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

A few spots are common in humid weather, but if the spots are spreading rapidly across the whole plant, you need to act fast. It is normal to see an occasional spot on older, lower leaves.

Stopping it coming back

Keep the leaves dry and ensure the plant is in a location with good airflow. Avoid misting your Eucalyptus.

Cider gum: spots? Check yours with a photo

Every plant is a little different. Take a photo of your cider gum 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 use a fungicide?: Fungicides are rarely necessary if you fix the airflow and watering habits. Focus on environmental changes first.
Will the spotted leaves turn green again?: No, the spots are permanent damage. The plant will grow new, healthy leaves once the fungal issue is resolved.

Guides to these causes

Leaf Spot

What are these spots on my Cider gum leaves?