Report #6052 - Report: Shining Geranium (Geranium lucidum)

Shining Geranium (Geranium lucidum) on May 25, 2024

Submitter does not have a specimen

Description of specimen

Lots and lots of shining geranium from the trail head at this location going back and down into the creek

Commentary

Hi Luci! Thanks for the report. Unfortunately, shining geranium is one of those species that is quite widespread in the county. The park is managed by the city of Hillsboro and I'll let them know about the infestation but they might not have the resources to deal with it. One thing you can do is keep your shoes clean so you aren't tracking the seeds to new locations.

Keith Nasman
Invasive Species Technician
Tualatin Soil & Water Conservation District
971-330-0902
keith.nasman@tualatinswcd.org

Keith Nasman
May 28, 2024, 1:35 a.m.

Remedy

How to control shiny geranium, from WA noxious weed control board: Individual plants and small infestations can easily be controlled by carefully hand-pulling, bagging, and putting in the trash. Make sure to remove its fibrous roots to prevent resprouting. Larger populations can be covered with sheet mulch - ideally overlapping pieces of cardboard covered with a thick layer of woodchips. Make sure to repeatedly monitor and control seedlings before they set seed.

Shining Geranium (Geranium lucidum) on May 25, 2024

Description of specimen

Commentary

Remedy

Location

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