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Lodgepole pine · Pinus contorta

How do I know if my Lodgepole pine has root rot?

It is less common for established Lodgepole pines to get root rot, as they prefer well drained soil, and this usually happens due to waterlogged conditions. Check the soil drainage around the base of the tree first.

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

Check these first

  1. Feel the soil around the base to see if it stays soggy.
  2. Check if the tree is leaning or feels unstable in the ground.
  3. Look for signs of standing water near the trunk.

Likely causes

  1. Poor Drainage

    Possible

    How to tell: The tree shows signs of wilting or yellowing needles despite the soil being constantly wet. The roots may look mushy or dark instead of firm and light colored.

    What to do: Improve the soil drainage by amending the surrounding area with organic matter or creating a slight slope. Stop watering until the top 3 inches of soil are dry.

  2. Overwatering

    Possible

    How to tell: The tree is watered too frequently, preventing the roots from getting oxygen. The base of the trunk may feel soft or show signs of decay.

    What to do: Adjust your watering schedule to every 7 to 14 days depending on the heat. Only water when the soil is dry to the touch at a depth of 2 inches.

Root rot in other plants

Find out what's wrong with your lodgepole pine

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 very serious and can be fatal if the entire root system is compromised. If the tree is leaning significantly, it may be too late to save.

Stopping it coming back

Ensure the tree is planted in a location that does not collect water and avoid overwatering during the cooler months.

Lodgepole pine: root rot? Check yours with a photo

Every plant is a little different. Take a photo of your lodgepole pine 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 use a fungicide for root rot?
Fungicides are rarely effective for established root rot. The best approach is to correct the drainage and watering habits.
How long does it take for roots to recover?
Recovery is slow and can take an entire growing season. Monitor the tree for new, healthy needle growth.

More problems with Lodgepole pine

Back to the Lodgepole pine guide

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