Can I save a plant with root rot?

If the rot is caught early and the roots are still firm, you can save it by improving drainage. If the roots are mushy and black, the plant is likely too far gone.

How often should I water?

Water every 3 to 7 days depending on the heat. Always feel the soil first to ensure it needs moisture.

Why is my Garden Phlox wilting? Causes and fixes

Check these first

Check the moisture level of the soil 2 inches down.
Inspect the base of the plant for mushy or blackened stems.
Ensure the planting site does not collect standing water.

Likely causes

Overwatering
Most likely
How to tell: The leaves turn yellow and droop even though the soil feels wet. The base of the stems may look mushy or discolored near the soil line.
What to do: Stop watering immediately and let the top 2 inches of soil dry out. If the soil is heavy clay, mix in organic compost to improve drainage for the future.
Poor Drainage
Possible
How to tell: Water pools around the base of the plant for hours after rain or irrigation. The roots begin to smell sour or look dark and slimy when inspected.
What to do: Gently lift the plant and amend the soil with perlite or coarse sand to help water move away from the roots. Replant at the same depth it was growing previously.

Find out what's wrong with your garden phlox

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 entire plant is wilting and the stems are soft at the base, it is likely a severe case. It is normal for the plant to wilt slightly on a very hot afternoon, but it should recover by evening.

Stopping it coming back

Plant your phlox in well draining soil and always check the soil moisture before adding more water.

Keep your garden phlox healthy from here

Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked. Identification and a health check are free.

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Questions people ask

Can I save a plant with root rot?: If the rot is caught early and the roots are still firm, you can save it by improving drainage. If the roots are mushy and black, the plant is likely too far gone.
How often should I water?: Water every 3 to 7 days depending on the heat. Always feel the soil first to ensure it needs moisture.

Why is my Garden Phlox wilting?