Temecula, CA Invasive Plant Rules: Prohibited Species (2026)
Key Facts
- No Single Citywide
- No single citywide ban list, but pyrophytic plants restricted in defensible space
- Cal Fire Flags
- CAL FIRE flags juniper, pampas grass, eucalyptus, Italian cypress as fire-risk
- Cal
- Cal-IPC high-risk invasives: Arundo donax, tamarisk, Spanish broom
- Arundo And Tamarisk
- Arundo and tamarisk removal required along Murrieta Creek and Santa Margarita River
- Replace With Natives
- Replace with natives: manzanita, ceanothus, salvia, lavender
Summary
Temecula prohibits highly flammable and invasive plant species near structures, particularly in Wildland-Urban Interface zones. CAL FIRE's defensible space guidance discourages listed pyrophytic species (juniper, pampas grass, eucalyptus close to homes), and the California Invasive Plant Council Cal-IPC list identifies invasives like Arundo donax (giant reed), tamarisk, and Spanish broom that owners are encouraged or required to remove.
5004. "Noxious weed" means any species of plant that is, or is liable to be, troublesome, aggressive, intrusive, detrimental, or destructive to agriculture, silviculture, or important native species, and difficult to control or eradicate, which the director, by regulation, designates to be a noxious weed. In determining whether or not a species shall be designated a noxious weed for the purposes of protecting silviculture or important native plant species, the director shall not make that designation if the designation will be detrimental to agriculture. (Amended by Stats. 1992, Ch. 556, Sec. 1. Effective January 1, 1993.)
Full Breakdown
While California does not maintain a single statewide 'banned plant list' for residential landscapes, Temecula's Fire Hazard Severity Zone designation and Riverside County Fire defensible space requirements effectively prohibit certain highly flammable species in Zones 0-2 around structures. CAL FIRE's 'plants to avoid' list flags juniper, Italian cypress (planted close to homes), pampas grass (Cortaderia jubata), fountain grass (Pennisetum setaceum), eucalyptus (close to structures), Acacia, rosemary in large hedges, and bamboo as ember-receptive or oil-rich pyrophytes. Removal can be required during defensible space inspection. The California Invasive Plant Council (Cal-IPC) identifies high-risk invasives common in southwest Riverside watersheds: Arundo donax (giant reed), Tamarix (saltcedar/tamarisk), Spanish broom (Spartium junceum), Scotch broom, fennel (Foeniculum vulgare), and pampas grass.
Removal of Arundo and tamarisk along Murrieta Creek and Santa Margarita River is the focus of regional restoration efforts; planting these is strongly discouraged and may violate riparian permits issued by Regional Water Board or CDFW. State law also bans certain noxious weeds under California Food & Agricultural Code §5004 enforced by the Riverside County Agricultural Commissioner. Temecula's landscape design guidelines recommend native and Mediterranean-climate alternatives. Replace listed pyrophytes with manzanita, ceanothus, salvia, lavender, agave, and other low-fuel, drought-tolerant species.
Violations & Fines
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Temecula code enforcement directly for current fines, enforcement procedures, and hearing options.
Frequently Asked Questions
Are there plants I cannot grow in Temecula?
Can I plant pampas grass in my Temecula yard?
Sources & Official References
Other rules in Temecula
California rules heatmap·Compare Temecula to another location·View the California invasive plant rules overview
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Prohibited Species in Nearby Cities
How other cities in Riverside County handle prohibited species.