Topeka, KS Landscaping Rules: Native Plants (2026)
Key Facts
- Height cap
- 12 inches, TMC 8.60.150(a)
- Native plant definition
- Any plant indigenous to local ecosystem
- Garden exemption
- Excludes gardens from height cap
- Noxious weeds
- Still banned regardless of native status
- Undeveloped land (>2 acres)
- 15-ft clearance still required
- Adopted
- Ord. 20625 § 13, effective 12-16-25
Summary
Topeka's 12-inch vegetation-height limit does not reach a native-plant garden. TMC 8.60.150(c) defines "vegetation" to exclude "cultivated trees, shrubs and vines and gardens," and specifically carves out areas cultivated for vegetables, fruits, herbs, flowers, ornamental grasses "and native plants," defining a native plant as "any plant indigenous to the local ecosystem." That exemption sits inside the City's amended IPMC Section 302.4.
Vegetation means, but is not limited to, weeds, woody vines, volunteer saplings under four to six inches in diameter, shrubs, brush, grass and uncultivated plants; however this term shall not include cultivated trees, shrubs and vines and gardens, which are defined as areas cultivated for growth of vegetables, fruits, herbs, flowers, ornamental grasses and native plants. A native plant is any plant indigenous to the local ecosystem.
(d) Notwithstanding subsection (a), an owner of undeveloped property that exceeds two acre is responsible for removing or destroying vegetation, except for grass or ground cover, within fifteen feet of any sidewalks, streets or adjacent property lines.
(e) Upon failure of the owner or agent having charge of the property to comply with this section after service of a notice of violation, the person may be subject to prosecution in accordance with Section 106.3. Upon failure to comply with the notice, the City or its contractor may enter upon the property to remove or destroy the vegetation and assess the costs against the owner. (Ord. 20625 § 13, 12-16-25.)
Full Breakdown
010, replacing it with a locally drafted "Vegetation" standard. A. 2-1313a. " A homeowner growing prairie grasses, wildflowers or other indigenous species as a deliberate garden bed is therefore outside the 12-inch cap, and the noxious-weed ban applies only if the specific plant is on the State's noxious list. The exemption does not reach undeveloped land: subsection (d) still requires an owner of undeveloped property over two acres to clear vegetation, except grass or ground cover, within 15 feet of sidewalks, streets or adjacent property lines regardless of whether it is a native planting.
3 or send its own crew or contractor onto the property to remove the vegetation and bill the owner for the cost. The current text was adopted by Ordinance 20625, Section 13, effective December 16, 2025.
Violations & Fines
Ignoring a notice of violation under TMC 8.60.150(e) exposes the property owner or agent to prosecution under IPMC Section 106.3, and lets the City or its contractor enter the property to remove or destroy the non-exempt vegetation and assess the full cost against the owner. Native-plant gardens meeting the Section 302.4(c) definition are not violations to begin with.
Frequently Asked Questions
Can I grow a native-plant garden taller than 12 inches in Topeka?
Does a native-plant exemption cover noxious weeds too?
Does the native-plant exemption apply to a vacant lot I own?
What happens if the City decides my "native garden" is a code violation?
Sources & Official References
Other rules in Topeka
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