Are a dark blue when they are ripe. To pick ripe blueberries, hold the cluster in your hand and gently roll your thumb over the berries; ripe berries will separate from the plant while the unripe remain attached. Blueberries are sturdier than other fruits and can be placed in deeper containers during picking and storing.   Do not wash until ready to use or process. Blueberries will keep in the refrigerator for 1 -2 weeks.  We sell them by the pint.  $2.50 if you pick them and $5.00 a pint if we pick them.  Blueberries are great for you and we use no pesticides on them.