Spotted these while out with the dog this morning. There were about 10 to 12 plants varying in height from about 60cm to over 2.5m. I thought they might be Giant Hogweed but having looked on line I am not at all sure. They are growing in an area of rough grass. Where they are not damp bu they are on the edge of an area can get waterlogged in wet weather.
Sorry the photos are not that good - taken on the phone.