Can aphids kill my tree?

Usually no, but they can weaken it significantly. It is best to treat them early to keep your tree growing strong.

Should I fertilize yellow leaves?

No, do not fertilize a stressed tree. Fix the watering or pest issue first.

Princess tree: yellow leaves, causes and fixes

Check these first

Inspect the undersides of the yellowing leaves for tiny insects.
Check the soil moisture level by sticking your finger 3 inches deep.
Look for sticky residue on the foliage.

Likely causes

Aphid infestation
Most likely
How to tell: You will see clusters of tiny, pear shaped insects on the undersides of leaves or near new growth. The leaves may also feel sticky from the honeydew they leave behind.
What to do: Spray the leaves with a strong stream of water to knock them off. If they persist, apply insecticidal soap every 5 to 7 days until they are gone.
Overwatering
Possible
How to tell: The leaves turn yellow and feel soft or mushy. The soil stays wet for a long time after you water it.
What to do: Stop watering until the top 2 to 3 inches of soil feel dry to the touch. Ensure the planting site has good drainage so water does not pool around the roots.

Yellow leaves on other plants

Find out what's wrong with your princess tree

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 tree or if the leaves start dropping, it is time to take action. A few yellow leaves at the base of the tree in late summer are usually normal.

Stopping it coming back

Keep your tree healthy with consistent watering and monitor for pests early in the season.

Princess tree: yellow leaves? Check yours with a photo

Every plant is a little different. Take a photo of your princess tree 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

Can aphids kill my tree?: Usually no, but they can weaken it significantly. It is best to treat them early to keep your tree growing strong.
Should I fertilize yellow leaves?: No, do not fertilize a stressed tree. Fix the watering or pest issue first.

Guides to these causes

Aphids

Why are my Empress Tree leaves turning yellow?

Check these first

Not sure what's wrong with your princess tree?