Invasive Species: Spotted Jewelweed

Impatiens capensis

East of the Rockies spotted jewelweed is a native. While this plant isn’t on either the state or county noxious weed lists it is listed in Washington state as one to control.

Why is it important to control?

This plant rapidly covers moist, stream-side areas crowding out native plants.

How can you identify it?

Orange flower of spotted jewelweedSpring-loaded seed of spotted jewelweed
Habitat: Moist areas with partial to full shade
Life Cycle: Annual
Height: Up to 2-5 feet (0.6-1.5 meters)
Leaf Description: Elliptic to egg-shaped alternate leaves with a sharp point and scalloped margins
Fruit & Flower Description: Orange flowers with red spotting; string bean like seed pod that explodes when ripe
Bloom Time: June to September

How do you control it?

  • Hand pull. Repeat annually until seed bank is depleted.

  • If seed capsules are present, bag, seal and dispose of in trash.

    How to report it?

    There are various ways you can report this noxious weed.

    For More Info: