Discussion
make sure you use plants that bloom at different times so you have bloom all year!
you could use high beds in front of the window where you can replace the flowers for every season (seasonally check your local flower store) and use perennials plants for the ground (they grow back from roots every season) for example peonies, coneflower, lilies. omg and what about a bow with roses?! or a pavilion with roses and the purple bench under it 🥰 and you could plant bulbs with tulips or crocuses all over the place and they also just come out of the ground when its their time :) and raspberries for a good summer snack 😋
Franny how am I supposed to improve on such an amazing plan?
My only suggestion is a few Dahlias in the partial shade by, they will add colour but they don't like the heat you will experience, might wait till sept to plant them & let them establish. Give them afternoon shade if you can