You didn't say what your climate is like, but because of the fig tree (awesome score!) I figure it's probably not the great white north.
Is your bamboo an edible variety? Eating the shoots can help contain it.
Giant Soloman's Seal is hardy to zone 4, will grow in shade or sun. It looks nice, has flowers for
bees, and the shoots in the spring are relished as an asparagus-like veggie. It spreads by rhizomes, so harvesting the shoots will help keep it in the area you want it to stay.
I've seen rhubarb growing quite happily just out from under the shade of a fig tree (right at the
canopy edge).
Stinging
nettles don't mind some shade, are super nutritious as a cooked green, and the stalk at the end of the season can be used as a wonderful fiber for rope and
thread.
Violets, especially labrador and sweet, like shade, make a nice ground cover (though slow growing) and have edible beautiful flowers.
Sea kale is a
perennial that tolerates some shade but does better in sun. The flower shoots can be eaten like broccoli, the leaves like spinach.
Have you considered adding a
pond? You could grow a variety of aquatic plants and it would be really good for habitat for all sorts of beneficial animal garden visitors.
Hope that helps!
