I love all the surprise sunflowers that are planted by the birds. I only have one dahlia currently growing in the garden - this white variety. I definitely need to plant more next year - this is such a beautiful plant, and makes a gorgeous cut flower!
The dill didn't grow very well in the container this year, except for this one stalk and bloom. I'm planning to plant both dill and fennel in the ground next season to attract more caterpillars and butterflies.
The canna lilies are in full bloom, but are wilted in the hot, nearly-100 degree afternoons. The Black-Eyed Susans have seen better days, but I'll include them anyways, since they are pushing through the hot Texas summer heat.
The zinnias that were planted from seed in the veggie beds in early spring have been the best performers all year long. They are constantly blooming, creating great cut-flowers, as well as a constant source of delicious nectar for the hummingbirds, butterflies and bees.
Finally, the marigolds have been a great constant bloomer all summer long, needing no maintenance other than the sprinkling of water they get from the soaker hose from time to time.