![Stretch the season of your favorite flowers, like irises, by planting cultivars with different bloom times.](https://secure.caes.uga.edu/news/multimedia/images/8716/irises-(1).jpg)
Plant Color
Gardening is often described as an art and a science. And while this suggests a degree of nuance to gardening, it is also quite true. Landscape design principles used to create an aesthetic garden space include color, form and balance, among others.