Can I save a plant with root rot?

If the damage is minor, you can try repotting it into fresh, dry soil and trimming away any black or slimy roots. If the roots are mostly mush, it is best to discard the plant.

How often should I water to avoid rot?

Water only when the top inch of soil feels dry to the touch, which usually happens every 3 to 7 days depending on the weather.

Snapdragon: root rot, causes and fixes

Check these first

Feel the soil moisture level 2 inches below the surface.
Check the bottom of the pot to ensure drainage holes are not blocked.
Smell the soil for a sour or rotten odor.

Likely causes

Overwatering
Most likely
How to tell: The leaves turn yellow and wilt, and the base of the stem feels soft or mushy.
What to do: Stop watering immediately and let the top 2 inches of soil dry out. If the plant is in a pot, ensure it has drainage holes and is not sitting in a saucer of water.
Poor soil drainage
Possible
How to tell: The soil remains heavy and soggy for days after watering.
What to do: If the soil is too dense, repot the plant into a mix with added perlite or sand for better aeration. Avoid planting in low spots in the garden where water collects.

Root rot in other plants

Find out what's wrong with your snapdragon

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 base of the stem is mushy or brown, the rot is advanced and the plant may not recover.

Stopping it coming back

Always check the soil moisture before watering and ensure your potting mix is well draining.

Snapdragon: root rot? Check yours with a photo

Every plant is a little different. Take a photo of your snapdragon 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.

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Questions people ask

Can I save a plant with root rot?: If the damage is minor, you can try repotting it into fresh, dry soil and trimming away any black or slimy roots. If the roots are mostly mush, it is best to discard the plant.
How often should I water to avoid rot?: Water only when the top inch of soil feels dry to the touch, which usually happens every 3 to 7 days depending on the weather.

Why are my snapdragons wilting despite wet soil?