Im wondering if anyone knows what this weed is. It is about 3 ft tall with large marijuana shaped leaves that are bigger then your head and a red spikey stalk. No matter what I do I can't get rid of it. My neighbour told me it will burn your skin if you touch it. Anyone know?
Have a read of this plant fact sheet from Port Coquitlam: http://www.portcoquitlam.ca/__shared/assets/Giant_Hogweed_Bulletin2667.pdf (PDF)
We haven't actually seen a picture of your plant to confirm that that's what it is, and I'm wondering about your attempts to get rid of it. You imply that you've tried a lot of things. Wouldn't they have involved touching the plant? That's a pretty impressive article put out by Port Coquitlam.