Sweet orange trees originated in China and grow in the United States, Mexico, and Spain. Orange varieties include navel oranges, blood oranges, Valencia oranges, clementines, and tangerines. These ...

It has two varieties: the Coast Douglas-fir and the Rocky Mountain Douglas-fir. This remarkable tree is significant as one of the world’s most important timber species. When choosing native plants for ...

There are many types of ground cover, some flowering with colorful blooms and some that are less conspicuous, green varieties. Photo Credit: Soft Surfaces Ltd / Flickr / CC BY 2.0 Artificial grass is ...