My suggestion is don't plant anything in the ground. Wait a year and observe the property. You never know what hidden gems you might find (e.g., autumn crocus). You also need to observe the sun/shade patterns throughout the year. An area is considered "full sun" if it gets at least 6 hours of direct sunlight. If you really feel the need to plant something, put it in a pot/planter. These can be grouped together around the yard/garden. To overwinter a perennial in a planter/pot, use something other than ceramic or terra cotta. Line the pot with bubble wrap and fill with a mix of 2/3 potting soil, 1/3 garden soil. Select plants 1 Zone hardier than yours (e.g. if you're Zone 5, select plants hardy to Zone 4). For the winter, the pots should be clustered together near the house or plunged in the soil in the garden.
This first year is a good time to start a compost pile so you'll have compost when you're ready to plant next year.