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Flowering dogwood · Cornus florida

Why does my flowering dogwood look sick at the roots?

It is less common for dogwoods to develop root rot unless they are planted in heavy, poorly draining soil. Check the drainage around your tree first to ensure water is not pooling near the trunk.

root rot on a plant
Photo: Ninjatacoshell, CC BY-SA 3.0

Check these first

  1. Observe if water pools around the base after rain.
  2. Check the soil moisture level to ensure it is not constantly saturated.
  3. Look for yellowing leaves that do not improve with better watering.

Likely causes

  1. Poor drainage

    Most likely

    How to tell: The leaves may yellow and wilt even if the soil feels wet. The tree will look generally unthrifty and may show signs of branch dieback.

    What to do: Improve soil drainage by amending the area with organic matter if possible. Avoid planting the tree in low spots where water collects.

  2. Overwatering

    Possible

    How to tell: The soil stays consistently soggy, leading to soft, decaying roots. You might notice a sour smell coming from the soil.

    What to do: Adjust your watering schedule to allow the top few inches of soil to dry out between waterings. Ensure you are watering deeply only when the soil is dry.

Find out what's wrong with your flowering dogwood

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.

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When to worry

Root rot is a serious condition that can kill the tree if left untreated. If the tree is losing large branches or the trunk feels soft, it may be too late.

Stopping it coming back

Plant your dogwood in well-draining soil and avoid over-mulching against the trunk. Only water when the soil needs it.

Keep your flowering dogwood 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 dogwood with root rot?
If caught early, you can save it by improving drainage and reducing water. If the roots are already mushy and black, recovery is very difficult.
How often should I water to avoid rot?
Water every 7 to 14 days depending on the weather. Always check the soil first to make sure it needs water before you add more.

More problems with Flowering dogwood

Back to the Flowering dogwood guide

This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.