Northern CA Invasive Plants & Alternatives

Collection by San Joaquin UC Master Gardeners

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San Joaquin UC Master Gardeners
Vinca Major, Periwinkle is a fast-growing, competitive plant that forms dense mats of growth.  These plants crowd out native plants in shady and riparian areas in California.

Vinca major

Description Periwinkle (Vinca major), also known as bigleaf periwinkle, greater periwinkle, or large periwinkle, is a spreading, perennial vine with blue-purple flowers, originally from southern Europe and northern Africa. The non-flowering stems of periwinkle grow along the ground, while the flowering stems stand upright.

Cal-IPC: Central Valley Invasive Ground covers  and alternatives to plant

Central Valley Ground covers

Protecting California's wildlands through research, restoration and education: the California Invasive Plant Council works to educate the public, landowners, land managers and policy makers about the problem of invasive plants, and works with them to stop the spread of invasive plants and restore California's natural landscape.

Cal-IPC: Invasive Ornamental grasses  and alternatives to plant

Central Valley Ornamental grasses

Protecting California's wildlands through research, restoration and education: the California Invasive Plant Council works to educate the public, landowners, land managers and policy makers about the problem of invasive plants, and works with them to stop the spread of invasive plants and restore California's natural landscape.

Cal-IPC: Invasive Central Valley Shrubs and alternatives to plant

Central Valley Shrubs

Protecting California's wildlands through research, restoration and education: the California Invasive Plant Council works to educate the public, landowners, land managers and policy makers about the problem of invasive plants, and works with them to stop the spread of invasive plants and restore California's natural landscape.

Cal-IPC: Invasive Central Valley Trees and alternatives to plant

Central Valley Trees

Protecting California's wildlands through research, restoration and education: the California Invasive Plant Council works to educate the public, landowners, land managers and policy makers about the problem of invasive plants, and works with them to stop the spread of invasive plants and restore California's natural landscape.

Don't plant a pest brochure

Don't plant a pest brochure

CA - Don't plant a pest - aquatic plants

CA - Don't plant a pest - aquatic plants

PlantRight™ was founded in 2005 to address the ongoing sale of invasive garden plants in California in an environmentally sound and economic...

Promoting noninvasive plants for California

For a list of garden plants that are invasive in your area, and what we recommend using in their place, click the region where you live on t...

Invasive Plants in California by Region

A list of garden plants that are invasive in California and what we recommend using in their place.

Alternatives to Water hyacinth

Recommended alternatives to Eichhornia crassipes

Recommended alternative plant details Have a gorgeous garden and a successful business — all with non-invasive plants! Below are recommended alternatives to the invaders in your region that are beautiful, vigorous, and appropriate for your climate. If you are a home gardener, ask your nursery professional for even more ideas.

CA Central Valley Invasive: Water hyacinth (Eichhornia crassipes)

Eichhornia crassipes

Description Water hyacinth is a floating aquatic plant with bright green, waxy leaves and attractive, violet flowers that have yellow stripes on the banner petals. It is reputed to be the fastest-growing plant in the world, doubling in size in a week during hot weather.

Alternatives to Yellow Flag Iris

Recommended alternatives to Iris pseudacorus

Recommended alternative plant details Have a gorgeous garden and a successful business — all with non-invasive plants! Below are recommended alternatives to the invaders in your region that are beautiful, vigorous, and appropriate for your climate. If you are a home gardener, ask your nursery professional for even more ideas.

CA Central Valley Invasive: Yellow flag iris (Iris pseudacorus)

Iris pseudacorus

Description Iris pseudacorus is a fast-growing and rapidly-spreading invasive plant that can out-compete other wetland plants, forming almost impenetrable thickets, in much the same way as cattails do. It grows to 5 feet tall and has yellow, showy flowers.

CA Central Valley Invasive: Nassella tenuissima, Mexican Feather Grass

Stipa / Nassella tenuissima

Description Deceptively beautiful, the emerging invasive Mexican feathergrass is a graceful, delicate and fine textured ornamental grass. It grows in a dense fountain like clump with slender leaves that roll tightly inward so that they appear wiry.

Alternatives to Russian Olive

Recommended alternatives to Elaeagnus angustifolia

Recommended alternative plant details Have a gorgeous garden and a successful business — all with non-invasive plants! Below are recommended alternatives to the invaders in your region that are beautiful, vigorous, and appropriate for your climate.