Is that berry ready for harvest?
Don鈥檛 pick raspberries, blackberries, or blueberries before they鈥檙e ripe, because they won鈥檛 continue ripening after they鈥檝e been harvested. A ripe berry will easily come off the vine or bush into your hand. If you have to tug, it鈥檚 not quite ready. Blackberries and blueberries turn dull when they're fully ripe.