Honestly, I'm more of a forager than a gardener. I love hiking and foraging allows for a serene walking meditation that I've always really enjoyed. That said, I am my mother's daughter and my mother is an epic gardener. I do enjoy the work and can never leave her house in the spring or summer without at least one new plant from her in tow. While I have over a dozen herbs in my garden this year this year, these three are my favorite to grow and use.
Bee balm. Also known as oswego tea, wild bergamot, or monarda. Because this herb is not easy to find dried, attracts both bees and butterflies, and grows easily in all kinds of conditions, it's one I always recommend for a garden. The firework flowers open mid to late summer and can be added to salads or teas along with the leaves. It supports digestion, is relaxing, has volatile oils that can help stave off infection, and tastes great. While not at all minty, it is a type of mint and will spread.
Lemon balm. Another herbalist described this one to me as "sunshine in a cup," and it is. It both tastes summery and brightens up a low or dark mood. It can help relieve tension, especially a tense stomach, making it great for digestion. I'll often munch on in it in the garden or pick some and add then to a cup of hot water for a quick tea fix. Also a mint, this one can take over a garden if left unchecked.
Dill. The ultimate summer herb (although... ooh, basil...). I put dill on almost everything I eat in the summer It too is wonderful for indigestion. The leafy parts or seeds can be chewed or made into a tea to also help with bad breath!