Raspberries are escaping their raised bed after two years :( I really don't want them to spread beyond it. what to do? Bury a tarp under the mulch? Dig a trench around the bed? Roundup?
this post was submitted on 28 Apr 2025
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We had blackberries and had the same problem, in our case though we had critters getting berries and either dropping or crapping out the seeds all over our yard, which sprouted for more than a year after we pulled up the main plant.
It looks like you've got a good set up but it might be good to try some kind of netting or screens to keep out animals so they don't spread seeds.
We're fairly critter free with the deer/rabbit fence, but birds were stealing some berries last year. I hadn't considered them dropping seeds, but that's obviously going to happen. Bird netting around this one bed will be somewhat annoying to set up, but might be worthwhile.