Should I fertilize a yellowing willow?

Only fertilize if a soil test confirms a nutrient deficiency. Adding fertilizer to a stressed tree can sometimes make the problem worse.

Can too much sun cause yellow leaves?

White willows love full sun, so it is rarely the cause of yellowing. Focus on water and soil quality instead.

White willow: yellow leaves, causes and fixes

Check these first

Feel the soil 3 inches deep to see if it is dry or soggy.
Inspect the base of the tree for standing water.
Check the weather history for recent dry spells.

Likely causes

Drought stress
Possible
How to tell: The leaves turn yellow and brittle, starting from the edges and moving inward. This happens when the tree does not get enough water during hot, dry spells.
What to do: Deeply water the tree once every 3 to 7 days. Ensure the water reaches at least 12 inches into the soil to support the root system.
Poor drainage
Possible
How to tell: The leaves turn a pale, sickly yellow and may drop prematurely. This occurs when the roots are sitting in standing water for too long.
What to do: Check if the soil is heavy clay or compacted. Amend the surrounding soil with organic matter to improve drainage and avoid overwatering.

Yellow leaves on other plants

Find out what's wrong with your white willow

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

Worry if the yellowing spreads rapidly across the entire canopy. It is normal for a few older leaves to yellow and drop during late summer.

Stopping it coming back

Maintain a consistent watering schedule and apply a layer of mulch to keep the root zone cool and moist.

White willow: yellow leaves? Check yours with a photo

Every plant is a little different. Take a photo of your white willow 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 fertilize a yellowing willow?: Only fertilize if a soil test confirms a nutrient deficiency. Adding fertilizer to a stressed tree can sometimes make the problem worse.
Can too much sun cause yellow leaves?: White willows love full sun, so it is rarely the cause of yellowing. Focus on water and soil quality instead.

Guides to these causes

Dehydration

Why are my white willow's leaves turning yellow?