Eating off the Land (homage to Y2K)

Survival instincts, in the suburbs..
Back in the advent of Y2K I wondered if I could live off my property. In summer there is a (sort of) bounty of food.

Enough to live on?
Blackberries
Blueberries
Crabapples
Thimbleberries
Filberts (potential)
Cherry plums - yellow
Cherry plus - red











And apples, and a well with water.

Exercise for the reader - which one is not native this year?