The huge ‘Jane’ magnolia that spreads over the driveway annually displays a few scattered flowers in midsummer. These are most ornamental before opening (below) as they fade quickly in the heat.
I suspect each flower’s peak is before sunrise, the morning it opens. In retirement, I pledge never to rise so early, so I must enjoy the few unopened blooms, and of course the tree’s full flowering in late March (below). It is the early spring bloom that earns the magnolia’s place in the garden, with the summer flowers only a curiosity.
After many inches of rainfall, the magnolia’s arching branches tilt low enough to brush the roof of my small car, and of course, this is a discouragement to delivery drivers looking to save a few steps walking down this short driveway. On occasion, a truck bulldozes through, saving me the labor of pruning for another year.
Three large panicled seedlings of ‘Tardiva’ hydrangea (Hydrangea paniculata ‘Tardiva’, below) surround the koi pond. When first noticed, I tried to remove them, but access was difficult without plunging into the pond so all have remained. I try to manage their size, mostly unsuccessfully, and two of the three are now approaching ten feet in height and width. So far, they have not completely overwhelmed their neighbors.
‘Tardiva’ is a lovely hydrangea with conical midsummer flowers, though it has been supplanted in the market by more compact growing varieties (a plus) and ones with more abundant blooms (hardly necessary). I notice extraordinarily large flowers on the seedling across the pond with the parent hydrangea in the background (below).
Currently, tiger swallowtails are feasting on the large flowers with an occasional break to visit the nearby seedlings of Joe Pye weed (Eutrochium). The ‘Burgundy Cotton’ crape myrtle is devoid of insects as bees and every other possible pollinator are attracted to mountain mints (Pycnanthemum) a short distance behind the koi pond.
In an unsuccessful attempt to keep plants sized in balance, I planted the compact growing ‘Little Joe’ (Eutrochium dubium ‘Little Joe’) but Joe Pye seedlings now tower far overhead. Most could be easily removed if I was inclined to do so.
Ramblin' through Dave's Garden 
I’m guessing the dwarf Joe Pye Weed is like the dwarf Ironweed “Iron Butterfly”. I inquired about it at a local native plant nursery, & the owner told me that seedlings from the dwarf Ironweed variety unfortunately revert back to the tall original.
With rare exceptions, perennial cultivars will not match the parent. Seedlings of my ‘White Swan’ echinacea are almost 50% white but most are pink-purple. I expect most of my Joe Pye seedlings come from the Little Joe plants, but some are likely to have come in from neighboring wetlands.