The diversity of species is especially remarkable, Wallner said, because Southern Arizona is not at the heart of cactus country. “The interesting thing is that cactus are tropical plants ...

And now that you know how to take care of them, learn more about the various types of cactus plants you can grow yourself. sot - Getty Images. Hirt's Gardens. amazon.com. $27.00.

First time caring for a plant? Then you will love these low-maintenance varieties. The post 8 Easy Types of Cactus for ...

Because of its unique composition, cactus soil isn't suitable for most other types of plants and flowers. However, in a pinch, you can mix cactus soil with organic ingredients like peat moss ...

Over the last five years, researchers have found that the death rate for saguaros in the Phoenix area jumped from 1% to 2% ...

The U.S. Fish and Wildlife Service currently classifies about 70 species of Arizona animals and plants as threatened or endangered under the Endangered Species Act, which was signed by President ...

All holiday cactus species are short day plants, meaning they don’t set flower buds and flower until the days become shorter, or more accurately, the dark period becomes longer.

Key Largo tree cactus becomes 1st-ever US species to become extinct due to rising sea levels. The rapid decline of the species could signify a similar fate for other plants.