Nasturtium, Alyssum, Rose,
Black Locust, Redbud.
Most flowers will not provide much in the way of calories, though ,so it's probably not a long-term solution to the issue?
Growing on my small acre in SW USA; Fruit/Nut trees w/ annuals, Chickens, lamb, pigs; rabbits and in-laws onto property soon.
Long term goal - chairmaker, luthier, and stay-at-home farm dad. Check out my music! https://www.youtube.com/@Dustyandtheroadrunners