Ewa Gentry vs Honolulu
How do native plants rules compare between Ewa Gentry, HI and Honolulu, HI?
Ewa Gentry and Honolulu have similar restriction levels.
Ewa Gentry, HI
Honolulu County
Ewa Gentry landscape designs may substitute native Hawaiian species for standard street trees under LUO Sec. 21-4.70; no mandatory native-only rule applies.
View full Ewa Gentry rules →Honolulu, HI
Honolulu County
Honolulu County permits native Hawaiian species as landscape substitutions under LUO Sec. 21-4.70 but does not mandate native-only planting; voluntary guidance comes from the Board of Water Supply Xeriscape Program.
View full Honolulu rules →Key Facts Comparison
| Fact | Ewa Gentry | Honolulu |
|---|---|---|
| Code | LUO Sec. 21-4.70 | - |
| Mandate | None for natives | - |
| Climate fit | Dry leeward plain | - |
| Guidance | BWS Xeriscape Program | - |
| Code section | - | LUO Sec. 21-4.70 |
| Native mandate | - | None |
| Substitution allowed | - | Yes for street trees |
| Voluntary program | - | BWS Xeriscape |
| Applies to | - | All Oahu zoning districts |
Highlighted rows indicate differences between cities.
Ewa Gentry FAQ
Can I replace my Ewa Gentry lawn with natives?
Yes. Private yards face no native mandate but also no ban. Natives like aalii and ilima thrive on the dry Ewa Plain and reduce irrigation under BWS shortage rules.
Do natives count as landscaping under LUO?
Yes. LUO Sec. 21-4.70 allows native species as substitutes for standard street trees and accepts them toward landscape area requirements for Gentry projects.
Honolulu FAQ
Does Honolulu require native plants in new landscaping?
No. LUO Sec. 21-4.70 allows native species as substitutions but does not require them. Voluntary guidance from BWS and UH CTAHR supports native plant selection.
Can I replace a required street tree with a native species?
Yes. The Land Use Ordinance permits approved native Hawaiian species as landscape substitutions with acceptance from the Department of Planning and Permitting.
Compare other topics
See how Ewa Gentry and Honolulu compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool