Pasco, WA Landscaping Rules: Native Plants (2026)
Key Facts
- Governing area
- Broadmoor Overlay District only
- Native plant source
- WA Native Plant List, Franklin County
- Drought-tolerant cap
- Up to 50% of ground cover/street trees
- Tree replacement ratio
- 1:1.5 for removed mature trees
- Cross-referenced code
- PMC 25.180.060 and 25.180.070
- Review stage
- Site plan review, PMC 25.97.110
- Enforcement body
- Pasco Code Enforcement Board
Summary
Inside Pasco's Broadmoor Overlay District, PMC 25.97.095(1)(b) tells developers to draw their plant palette from the Washington Native Plant List for Franklin County and to use xeriscape methods for drought-tolerant landscaping. Drought-tolerant deciduous and evergreen species can make up to half of the required ground cover and street tree planting.
Landscaping should maintain the selection of plants listed from the Washington Native Plant List for Franklin County (wnps.org). Xeriscape methods for drought-tolerant landscaping should be used. Plant material shall be a mixture of drought-tolerant deciduous and evergreen trees. Drought-tolerant plant materials may contribute up to 50 percent of the required landscaping ground cover and street trees.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 4837, passed May 4, 2026).
Full Breakdown
97 PMC), sets the standard that governs new development inside that master-planned area east of Road 68. org, and pair it with xeriscape techniques for drought tolerance. The code requires the plant mix to combine drought-tolerant deciduous and evergreen trees, and it caps how far a developer can lean on that palette: drought-tolerant material may supply up to 50 percent of the required landscaping ground cover and street trees, meaning the rest of the planting plan still has to meet the district's other landscaping standards.
070 for parking lot landscaping, so a native/drought-tolerant plant list does not replace those numeric requirements. 5 replacement ratio for any existing tree that is removed. 110, where the Community and Economic Development Department reviews landscaping plans for nonresidential and multi-unit residential projects in the Broadmoor area before permits issue.
Violations & Fines
Landscaping compliance in the Broadmoor Overlay is enforced as a Title 25 zoning matter through Pasco's Code Enforcement Board process (Chapter 1.40 PMC). A department director who finds a violation first seeks voluntary correction; if that fails, a notice of civil violation issues with a correction deadline, and the maximum monetary penalty per separate violation per day is set under Chapter 3.35 PMC, with a $200 minimum for a repeat violation. A hearing before the Code Enforcement Board follows within 10 days, and decisions are appealable to Franklin County Superior Court.
Frequently Asked Questions
Does Pasco require native plants citywide?
How much of my landscaping can be drought-tolerant plants?
What if I have to remove a mature tree during construction?
Where do I find the approved plant list?
Sources & Official References
Other rules in Pasco
Compare Pasco to another location·View the Washington landscaping rules overview
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