Can I save a tree with root rot?

If caught early, you can save the tree by improving drainage and reducing water. If the rot has reached the trunk, the damage is often irreversible.

How much should I water a young magnolia?

Water deeply once a week during the first few years to ensure the roots grow deep. After that, the tree becomes quite drought tolerant.

Southern Magnolia: root rot, causes and fixes

Check these first

Feel the soil 3 inches deep to see if it is waterlogged.
Inspect the base of the trunk for soft or discolored bark.
Check if the tree was planted too deeply in the ground.

Likely causes

Poor Soil Drainage
Most likely
How to tell: The soil around the base remains soggy for days after rain. You may notice yellowing leaves or a general decline in the tree's vigor.
What to do: Improve drainage by amending the surrounding soil with organic matter or creating a slight mound to elevate the root crown. Avoid adding deep layers of mulch directly against the trunk.
Overwatering
Possible
How to tell: The tree is being watered too frequently, preventing the roots from getting oxygen. The foliage may look wilted even though the soil is wet.
What to do: Adjust your watering schedule to every 7 to 14 days depending on rainfall. Always check the top 3 inches of soil before adding more water.

Root rot in other plants

Find out what's wrong with your southern magnolia

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

Root rot is serious if the leaves are turning brown and brittle or if the trunk feels soft near the soil line. It is normal for a few lower leaves to drop during the initial transplant phase.

Stopping it coming back

Plant your magnolia in well draining soil and ensure the root flare is slightly above the soil surface. Avoid overwatering once the tree is established.

Southern Magnolia: root rot? Check yours with a photo

Every plant is a little different. Take a photo of your southern magnolia 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, you can save the tree by improving drainage and reducing water. If the rot has reached the trunk, the damage is often irreversible.
How much should I water a young magnolia?: Water deeply once a week during the first few years to ensure the roots grow deep. After that, the tree becomes quite drought tolerant.

How do I fix root rot on my Southern Magnolia?