There are a bunch of flowers along the road that goes around Lake Benbrook. From the intersection of IH-20 and US377 follow 377 southwest about 3 miles. On the left you will see some ball diamonds. There is also a YMCA there.
Here is a link:
http://www.tpwd.state.tx.us/fishboat...k/access.phtml
There are a lot of flowers along the roads that go around the park. Not a ton of traffic and the flowers are well off the road. I have shot a couple of races there and took some flower shots while I was waiting around.