Calflora, a 501c3 non-profit
Distribution by County   1222    
Buddleja davidii  Franch.
Butterfly bush,   Summer lilac
Buddleja davidii is a tree or shrub that is not native to California.
There is a high risk of this plant becoming invasive in California according to Cal-IPC.
Record Count by County

Alameda: 4 Mendocino: 2 San Bernardino: 5 Siskiyou: 3
Butte: 1 Monterey: 2 San Francisco: 16 Sonoma: 7
Del Norte: 15 Napa: 2 San Mateo: 8 Trinity: 3
Humboldt: 30 Orange: 25 Santa Barbara: 3 Ventura: 9
Los Angeles: 6 Riverside: 3 Santa Clara: 5
Marin: 25 Sacramento: 3 Santa Cruz: 1

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 01/13/2026).