Can I save a tree with root rot?

If caught early, improving drainage and reducing water can help the tree recover. If the roots are black and mushy, the tree may not survive.

Does this tree flower?

European aspens produce catkins in early spring before the leaves emerge. They need a period of winter chill to bloom successfully.

Why does my European aspen have root rot? Causes and fixes

Check these first

Smell the soil near the base for a rotten or swampy odor.
Observe how long water takes to soak into the ground after rain.
Check if the tree is planted in a depression where water pools.

Likely causes

Poor Drainage
Most likely
How to tell: The soil stays soggy for days after rain and the base of the trunk may look discolored or soft. You might notice a sour or swampy smell coming from the dirt.
What to do: Stop watering immediately and allow the top 4 inches of soil to dry out completely. If the area is a low spot, consider digging a small trench to divert excess water away from the trunk.
Overwatering
Possible
How to tell: The leaves turn yellow and fall off prematurely while the soil remains constantly wet. This happens when the roots are deprived of oxygen.
What to do: Adjust your watering schedule to every 14 days rather than 7. Ensure you are only watering when the top layer of soil feels dry to the touch.

Root rot in other plants

Find out what's wrong with your european aspen

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 tree is losing large amounts of foliage and the trunk feels soft at the base, the damage may be severe. It is normal for a few leaves to drop in late autumn as the tree prepares for winter.

Stopping it coming back

Plant your aspen in well draining soil and avoid creating a basin that traps water around the trunk.

European aspen: root rot? Check yours with a photo

Every plant is a little different. Take a photo of your european aspen 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 I save a tree with root rot?: If caught early, improving drainage and reducing water can help the tree recover. If the roots are black and mushy, the tree may not survive.
Does this tree flower?: European aspens produce catkins in early spring before the leaves emerge. They need a period of winter chill to bloom successfully.

Why does my European aspen have root rot?