I had climbing rose next to this. Late last year I pulled a bunch of seeds and buried near this area:
I am in Pacific Northwest.
Is it blackberry or rose?
Gardening & Landscaping Stack Exchange is a question and answer site for gardeners and landscapers. It only takes a minute to sign up.Sign up to join this community
Those are leaves of a rose. This photo is a decent image of a blackberry leaf. Note that the leaflets are irregularly shaped, with the first pair larger than the second pair, unlike a rose where the first and second pair of leaflets are nearly the same size. The red edges of your leaflets are also typical of roses.