I went berry picking behind my house today (south side).  Ripe black raspberries waited for me in the forest edge zone.  The patch is now about seven years old, and better lit than ever after nearby trees came down so that a roof section full of PV panels could produce more than enough electricity for us (all surplus goes to the grid).  We haven't been pulled to pick the berries before this year.  In the same area was garlic mustard I didn't wade in to pull a couple of months ago when I was pulling it everywhere it was easy to reach.  That's a plant that's not native here.  Wouldn't you know; the garlic mustard has seeded and my reaching and repositioning among the berry canes knocked seeds free.

Location, location, location.  And the timing!