Starre Vartan is an environmental and science journalist. She holds an MFA degree from Columbia University and Geology and English degrees from Syracuse University. Echeveria comes in many sizes, ...

These colorful spillers add texture, movement and beauty to containers, hanging baskets and window boxes.

These thickly attired evergreen shrubs stand upright and withstand neglect. Their height generally ranges from 8 to 12 feet, depending on the cultivar, although some can grow twice that height. You ...