If you have a shade you could use hostas
Evergreen small shrubs not favored by deer. Artemesia, Echinacea, Hen and Chicks, Crocrosima, Lilac bushes, Smoke trees/shrubs, Lavender, Creeping Thyme, Monarda, Rosemary Arp (good through zone 6) for sun, and Astilbe, Brunnera, Lamium, Lenten Rose in shade. Deer will eat Hostas, unless sprayed or fenced in. Check your planting zone before you purchase.
Hi! I'd go to a local nursery or home improvement store and search out perennal plants that say they grow well in what type of area you have (sun or shade). They will come back year after year and multiply so you don't have to do much work after the first year...just enjoy the blooms. Daisies do well in most areas.
Depends on your plant zone, the amount of sun the site will get, what animals could eat it, and what you like. Local garden clubs and nurseries are your best source of that info because there are these variables and lots of great choices. Davesgarden.com is a free website with info as well. Enjoy the process !