Butterfly Grove

Each year thousands of vibrant orange and black Monarch Butterflies flock to Pismo Beach, seeking shelter from the freezing northern winters. From late October to February, the butterflies cluster in the limbs of a grove of Eucalyptus trees at Pismo State Beach. The grove is easily accessible. It is located on State Highway 1 at the south boundary of the city limits of Pismo Beach.

Spectators come from all over the Central Coast and throughout the state to view the Monarchs. Visitors are greeted by knowledgeable and well-informed volunteer docents offering daily talks and information.

The butterflies form dense clusters with each one hanging with its wing down over the one below it to form a shingle effect. This provides shelter from the rain and warmth for the group. The weight of the cluster help keeps it from whipping in the wind and dislodging the butterflies.

Our colony is one of the largest in the nation, hosting an average of 25,000 butterflies over the last five years.

The Monarchs that visit Pismo Beach are a special variety. They have a life span of six months as opposed to that of common Monarchs who live only six weeks. This can be attributed to a unique fat storing system. However, even with an extended life span, those butterflies that leave in March will never return.

Scientists do not know why the Monarchs consistently return to some wintering sites. In North America, those sites range from the Central and Southern California Coast to Mexico. Some scientists speculate that the insects are equipped with genetic homing systems that lead them from their summer sites in the Sierras, Florida, Canada and the Great Lakes Region in North America back to their winter locations.

On the Central Coast, Monarchs winter in Pismo Beach, Pacific Grove and Morro Bay. The Natural History Museum In Morro Bay is an excellent resource for information about Monarchs.

During the season the Docent Trailer opens at 10am and closes at 4pm daily. Daily talks happen at 11am and 2pm, weather permitting. For more information or directions, please call the Pismo Beach Chamber of Commerce at 800-443-7778. Be sure to visit ClassicCalifornia.com – the Pismo Beach Conference and Visitors Bureau’s web site for more information about Pismo Beach.

Monarch Butterfly Roosts in California
Winter Sites (from north to south)

Fremont, Ardenwood Historic Farm, in the North Woods between the railroad tracks and the north fence boundary.

Santa Cruz, Natural Bridges State Beach, a site accessible to everyone

Pacific Grove Monarch Grove Sanctuary, monarch butterfly grove near Monterey

Andrew Molera State Park, Big Sur, through the Environmental Campground to Cooper’s Cabin

Morro Bay State Park, typically around campsite #116

Pismo Beach, Pismo State Beach, at the south end of the North Beach Campground

Ventura, Camino Real Park

Malibu, Point Mugu State Park, Big Sycamore Canyon (an autumn site)

Long Beach, El Dorado Nature Center

Encinitas, Monarch Butterfly House at 450 Ocean View Avenue (800) 606-6627

San Diego, UCSD(La Jolla Shores Dr at Azul St)

OUR PHOTO GALLERY

We are always looking for pictures of the Monarchs. If you have any pictures you would like to share with us feel free to Email Us