Erigeron karvinskianus

Mexican daisy

Ratings

  • This plant has a Plant Risk Evaluator rating of Moderate Potential Risk

Description

Despite being called "Santa Barbara Daisy" and some misleading signage at nurseries, this plant is native to Mexico and not California. It is a trailing groundcover that cascades over walls or pots, spreading 3-5 ft. wide and 1-2 ft. tall.

Small white daisies with a bit of pink bloom almost year round. It can be invasive with moderate water, but will take poor soil and performs best if cut down periodically. It attracts beneficial flies and wasps.

Erigeron karvinskianus has naturalized in some locations in Marin, San Mateo, and Monterey counties, and a few places in the south coast. See Calflora for a map of its current distribution outside of cultivation. It does not appear to be naturalizing in inland areas of California.

Erigeron x moerheimii is very similar to Erigeron karvinskianus but does not spread as wide (only 3 ft.) and has light pink, larger flowers. It does not reseed.

Why is this plant not included on the invasive plant list?

Erigeron karvinskianus is included as a candidate plant in the 2017 nursery survey. We will update this section when the survey results are available in fall 2017.

More information

For more information about this plant, please see the following resources:

Additional photos of Mexican daisy (Erigeron karvinskianus)