I have some 20 acres in North Idaho. The land is mostly forested: Douglas Fir, Grand Fir, some pines. Deer is a major concern. So far, only currants and garlic have been able to withstand deer pressure without a fence.
I am thinking about planting currants throughout the property (outside the fenced garden), preferably in partial shade, relatively moist locations. Will only get pine blister rust resistant or immune cultivars. Ideally, I would like to get some fruits with minimum amount of labor - only apply manure/compost once a year, water a few times a year, and pick the fruit. Growing a guild of nitrogen-fixing plants is probably not feasible due to deer.
What do you think about this idea? Has anyone tried it? Will currants be able to survive and produce some fruits with only minimal efforts from my part? Might they become truly invasive?