Thank you for contacting Ask Extension. How many hours of sun does this area get? How large is the area? and does the soil stay wet or is it a well draining area? Once I have these answers, I can give a better answer to you.

Thank you for the responses to my questions. One thing I would suggest is getting a soil test to see if you need to amend your soil to ensure that your plantings have all the nutrients that they need. https://homesoiltest.msu.edu/ 

Here is a list of shrubs that are low maintenance and hardy because many of them are native. The shrubs get about 1-4 feet tall and 3-5 feet wide. You can use them as the bones of the garden, then fill in with trees or perennials. All of these can handle the amount of sun that you have. The Hypericum, Clethra, and Caryopteris all bloom at different times in the summer. The winterberry will get red berries that the birds love.

Native and deciduous choices:  St. Johns Wort (Hypericum kouytchense ‘Sungold’ and Hypericum moserianum ‘Tricolor’), Ninebark (Physocarpus opulifolius ‘Nanus’, ‘Dart’s Gold’ and ‘Little Devil’), Summersweet (Clethra alnifolia), Blue Spirea (Caryopteris clandonensis), Inkberry (Ilex glabra), and Ilex winterberry.

Evergreens: Pinus mugo, Cypress threadleaf falsecypress, Bird’s Nest Spruce (Picea abies), Juniper Horizontalis.

For Trees: redbud, serviceberry, riverbirch are all native and grow well in an area that size. Douglas fir (Pseudotsuga menziesii)- This tree grows well in sun to part shade and is drought tolerant once established. It's a popular choice for screens and can reach several feet in growth per year. Abies concolor- also known as White or concolor fir , 30-50 feet and quite adaptable. Grows best with evenly moist soil. 

I would stay away from any spruce because of the diseased one that you had. I would also remove the barberry, because it is invasive and the ninebark above, is a much better choice. Also, do not stay with one variety of plant. If one plant gets a disease or insect, then you do not lose all of your planting. 

I have included several publications for your reference:

https://www.michigangardener.com/step-by-step-guide-to-planting-trees-and-shrubs/

https://www.canr.msu.edu/news/drought_tolerant_plants_save_water_money_and_time