Bug/Issue Blackberry Season

I don't know if this is truly a bug or not. But I know with Salmonberries the bushes time is on par with the TV. So I figured it couldn't hurt to report this possible bug. The Blackberry Season notification comes up on the TV on the "Livin' on the Land" TV program. But the blackberries don't even appear until the 8th. At least that's the first time I saw them. Btw, if this has been posted before I apologize. I did try to search for it before posting and came up with nothing.