Skip to content
Pocket Botanist
Get the app

Meadowsweet · Filipendula ulmaria

Why does my Meadowsweet have spots on its leaves?

Spots on Meadowsweet are often a sign of a fungal infection like rust. These infections thrive when the foliage stays wet or air circulation is poor.

Not sure it's this? Check a photo of your plant for free

spots on a plant
Photo: Scot Nelson, CC0

Check these first

  1. Look for orange or brown pustules on the leaf undersides.
  2. Check if the spots have a white, powdery texture.
  3. Examine if the spots are spreading rapidly.

Likely causes

  1. Rust fungus

    Most likely

    How to tell: You will see orange, yellow, or brown pustules on the undersides of leaves. The top of the leaf may show corresponding yellow or brown spots.

    What to do: Remove and destroy all infected leaves immediately to stop the spread. Improve airflow around the plant and avoid overhead watering.

  2. Powdery mildew

    Possible

    How to tell: A white, powdery growth appears on the leaves and stems. It looks like someone dusted the plant with flour.

    What to do: Increase spacing between plants to improve air movement. If it is bad, use a fungicide labeled for powdery mildew every 7 to 10 days.

Leaf spots on other plants

Find out what's wrong with your meadowsweet

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.

Download on the App StoreGet it on Google Play

When to worry

Small spots are common in late summer, but widespread infection can cause premature leaf drop. Treat it early to keep the plant looking good.

Stopping it coming back

Water at the base of the plant rather than over the leaves. Give your Meadowsweet plenty of room to ensure air flows freely through the foliage.

Meadowsweet: spots? Check yours with a photo

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

Download on the App StoreGet it on Google Play

Get the app · Or check it from a photo now, free

Questions people ask

Should I cut the plant back if it has spots?
If the infection is severe, cutting the plant back to the ground can help it regrow healthy foliage. It will usually bounce back quickly.
Is this disease contagious to other plants?
Yes, fungal spores can travel through the air. Keep an eye on your other garden plants nearby.

Guides to these causes

More problems with Meadowsweet

Back to the Meadowsweet 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.