
Sophie DeGroot
Noxious Weed Coordinator for Jefferson County, Washington; WSU Extension specialist in invasive plant management and education.
3
APPEARANCES
1
PODCASTS
012
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OCT 5
Jul 15, 2026
Getting Rid of Noxious Weeds (Part 2)
2:25
2:36
2:46
3:01

Sophie DeGrootGUEST
But yeah, ivy is a climber, so it'll climb over everything and it can just smother the species on the ground and then it can climb up into the canopy.

Sophie DeGrootGUEST
And, you know, talking about how we're going to control it, the first most important thing that you do is that you just cut the vines at the base of the tree.

Sophie DeGrootGUEST
a lot of people then think you have to pull down the Ivy, but even just cutting the, the roots and letting everything on the top of the tree die can relieve a tree of over 2000 pounds of water weight because that's all going to die and evaporate.

Sophie DeGrootGUEST
So if you have Ivy in your yard and it's climbing up trees and you, you know, only have a little bit of time to deal with it, the best thing that you can do is just try to cut it from around the base and so that the stuff that has grown up into the tree dies and then if further down the line you're doing a wildfire evaluation or something you should consider all that dead ivy as ladder fuel for fires and you might want to consider trying to pull it down and removing it but it will just cutting it at the base will kill everything on the top of the tree.
19 MINS LATER
D
22:13Debaran KelsoHOST
So you were telling me like 50% of our invasive species started as landscape plants?
Getting Rid of Noxious Weeds (Part 1)
9:32
9:40

Sophie DeGrootGUEST
So coming to people's homes and doing site visits and helping them determine what weeds they have and how to deal with them.

Sophie DeGrootGUEST
You might find us tabling at the farmer's market or fair or, you know, various events around the county.
Getting Rid of Noxious Weeds (Part 1)
4:35
4:45
4:59

Sophie DeGrootGUEST
And ultimately, a weed is somewhere you don't want it to be, so a weed is a very subjective term.

Sophie DeGrootGUEST
In Washington's revised code, Chapter 1710, you can read all about the noxious weed laws, and they outline, um, a list of weeds that are particularly invasive.

Sophie DeGrootGUEST
They're non-native, invasive, and harmful to either humans or animals or ecosystems or recreational opp- opportunities or timber or whatever it may be.
7 MINS LATER