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El Dorado County, CA Invasive Plant Rules: Prohibited Species (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Banned species
Acacia, black walnut, eucalyptus, elm, palm, poplar
Also banned
Tree of heaven (Ailanthus altissima)
Where it applies
Public road rights-of-way on subdivided/zoned land
Stated reason
Weak wood, disease, destructive roots, high upkeep
Enforcing officer
Director of Transportation
Penalty
Misdemeanor, up to $1,000 fine or 6 months jail

Summary

El Dorado County bans planting seven tree species in public road rights-of-way. Section 12.12.070 outlaws Acacia, Black walnut, Eucalyptus, Elm, Palm, Poplar and Tree of heaven in highways within subdivided land and one-family, multifamily or commercial zones, citing weak wood, invasive roots and high maintenance.

These county ordinances apply to unincorporated areas of El Dorado County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Some types of trees, upon maturing, instead of becoming assets to the community, become liabilities due to structural weaknesses, disease or insect susceptibility, short life, destructive root systems and rank growing branches requiring excessive maintenance. Due to one or more of these characteristics, it is unlawful to plant the following trees in any public highway within subdivided lands and land zoned as one-family residential districts, multifamily residential districts and commercial districts within the County: A.Acacia;B.Black walnut;C.Eucalyptus;D.Elm;E.Palm;F.Poplar;G.Tree of heaven.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 13 Update 4).

Full Breakdown

12, Roadside Trees, targets species the County has found become liabilities rather than assets once mature. 070 explains the reasoning: these trees develop structural weaknesses, disease or insect susceptibility, short life, destructive root systems and rank growing branches requiring excessive maintenance. Because of one or more of those traits, the section makes it unlawful to plant seven listed species in any public highway within subdivided lands or land zoned one-family residential, multifamily residential or commercial within the County: Acacia, Black walnut, Eucalyptus, Elm, Palm, Poplar and Tree of heaven.

070 species are barred outright from the same rights-of-way regardless of whether an owner seeks a Commissioner permit for some other species. 030, meaning street trees, parkway strips and public rights-of-way, not interior private landscaping. 080. 120, with removal costs assessed to the owner after ten days' written notice.

Violations & Fines

Planting one of the seven barred species curbside is a misdemeanor under Section 12.12.140, punished per the Chapter 1.24 general penalty: a fine up to $1,000, up to six months in County jail, or both, under Section 1.24.010. The Director of Transportation can also require correction of a resulting hazard as a public nuisance under Section 12.12.120, removing it and billing the owner if the owner doesn't act within ten days of written notice.

Frequently Asked Questions

Is eucalyptus banned in El Dorado County?
Yes, along public roads. Section 12.12.070 makes it unlawful to plant eucalyptus, along with acacia, black walnut, elm, palm, poplar and tree of heaven, in any public highway within subdivided land or land zoned one-family, multifamily or commercial in the County, citing destructive roots and heavy maintenance.
Does the ban cover trees on my own property?
No. Section 12.12.070 only reaches the public highway right-of-way, meaning street frontage, parkway strips and rights-of-way defined in Section 12.12.030. Interior landscaping on private lots isn't covered by this chapter, though a hazardous tree overhanging a road can still be declared a nuisance.
What if I already have a banned tree species by the curb?
Section 12.12.070 bars new planting; it does not order removal of an existing tree just because it's on the prohibited list. The Director of Transportation can still act if the tree becomes a hazard or nuisance to the roadway under Section 12.12.120.
What's the penalty for planting a prohibited roadside tree?
Section 12.12.140 makes it a misdemeanor, punishable under the County's general penalty, Section 1.24.010, by a fine of up to $1,000, up to six months in County jail, or both.

Sources & Official References

Other rules in El Dorado County

All El Dorado County rules

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