@Zenman
This no-garden situation is hopefully temporary.
Our local senior community center has gardens around their building, and they are receptive to garden projects. Maybe your area senior center would have space for a zinnia garden. I bet there'd be some people interested in helping.
My zinnia row is bursting with color. I have to tell you this summer has been wet & rainy. My garden soil has been so wet, I've had a hard time getting in to cut bouquets. Other plants in that garden are suffering - dahlia, sunflowers, potatoes - but not zinnia. They are the stars of the summer - again. They don't care - even when we got over 4" of rain in one week.
I have to say zinnia offer it all - beauty, reliable, fast growing, intriguing variances, and because I save seeds - FREE.