Welcome to the Barbara Collins Arboretum on the campus of California Lutheran University.

Cal Lutheran is graced with breathtaking grounds bordered by rolling hillsides. The campus is adorned with a variety of trees and plants including many which are native to Southern California. Continue reading

CLU Gardens

Plants found on CLU campus and on Mount Clef, north of the campus.


Wildflowers of the Southern California chaparral, desert, mountains, and north coast.

Garden Flowers

Cultivated plants commonly found in gardens and landscaping.

Canadian Flowers

Wildflowers of the Canadian Rockies and nearby foothills, prairies, and the Waterton-Glacier area.

Barbara Collins, Ph.D., is a professor of biology at California Lutheran University. She teaches General Biology for the majors, Microbiology, Environmental Ecology, California Plant Communities, Flora of Southern California, and Wildflowers of the Sierras.

Dr. Collins has authored four books on the flora of Southern California and six books on botany and biology. Read More

Classification and identification of plants, flowers and trees is an ongoing process, and locations are subject to change.