Grandma had a acre of such plants.
The key was to grow plants together that geese did not eat.
She had a strain of
straw berry that went wild, in fact is was part wild strawberry.
They grew where the geese grazed. You just had to move the geese out of the area when berries formed.
Geese were move back in to clean up the plants after picking. She then tended to get a second crop of strawberries later in the summer.
I would look for strawberries that can go wild in your area.
So long as the geese get buckets of
water they graze.
They will also eat fruit. I have peaches and sand pears. I remove the bad fruit and the geese eat them on the ground.
Removing fruit on the ground help keep bugs and disease down.
So plant a mix of what grows well in your area.
Test some on geese to see if they will eat your plants.
Use geese to weed in areas that have plants they do not eat, or are too tall for them to reach.
Wrap all young trees so geese do not remove bark. Older trees with good layer of bark
should be ok.
Geese shit is a great way to recycle organic matter. Can get 3 pound of shit per goose per day! I also pick greens and add it to the goose pen adding organics to this area.
I have put geese in areas and let them heavy graze than reseed when everything mashed down.
Also, use
chicken tractors to clean out a area.
You can wipe out a area using poultry to overgraze it, while leaving a layer of manure when the poultry are moved.