Local governments in the Comox Valley have once again joined forces with the Coastal Invasive Species Committee (Coastal ISC) to bust invasive knotweed and giant hogweed.
Both plants are considered alien invasive species in B.C., and if left unchecked can wreak havoc on local ecosystems and diminish property values. And in the case of giant hogweed, can lead to third-degree burns when in contact with skin, due to its clear phototoxic sap.
The best time to spot knotweed is mid-summer and early autumn. During spring, reddish/purple shoots appear from the ground and fat, asparagus-like ‘spears’ rapidly lengthen from bright pink ‘crown’ buds.
Giant hogweed grows up to 14 feet tall and features huge leaves (up to five feet wide), and white flowers with 50-150 flower rays clustered into an umbrella-shaped flower cluster up to 2.5 feet across.
Residents in the Comox Valley Regional District electoral areas can benefit from subsidized treatments by select spot application this summer. Help us be on the lookout for invasive species so we can stop the spread of these noxious weeds.
Reporting knotweed and giant hogweed is important in controlling these priority invasive plants in the region.
The Coastal Invasive Species Committee is asking the public to report sightings of these noxious weeds. Email firstname.lastname@example.org or call 250-871-5117 in the Comox Valley.