Walk it once. Know it for good.
Most gardens are held in one person's memory, and that person is rarely the one holding the trowel on Thursday. GardenLab moves the garden out of your head and into a record anyone can read.

Take pictures as you walk, or use the ones already on your phone.
Group them by bed. Each bed gets its own light, moisture and soil notes, once, and remembers them.

GardenLab suggests what it is. You say whether it's right.
Identification is tuned to the northeastern United States, so the answer is one name, not a list of everything with an oval leaf. An unsure match is shown as unsure.

See which plants suit the bed they stand in, and change the plan.
Add a plant, remove one, move it between beds. Start a project across several beds, put dates on the work, and hand the list to the person doing it. Look anything up in a library of native plants where every fact names its source.