After 14 years of gardening, county says my landscape violates code—what would you do?

Garden update, and not the kind I was hoping to share.

I recently received a notice from the county stating that vegetation exceeded 8 inches in height. The notice also included the following language:

"Natural landscapes shall not be located less than 5 feet from an adjacent owner's property boundary. This includes the right-of-way area. Natural landscapes require a site plan identifying all native plants and vegetation."

After calling the inspector, I was told that plants must be removed within 5 feet of the property line and that a site plan identifying the plants would be required.

This has been difficult news to receive. I started this garden in 2012 and expanded it significantly during COVID. Over the years I've invested countless hours creating paths, terraces, flower beds, habitat for birds and pollinators, and a landscape that I truly enjoyed.

At this point I'm trying to understand exactly what the requirements are and what changes will be necessary. Depending on the outcome, I may have to significantly reduce portions of the garden, including areas I never expected would be affected.

Has anyone else dealt with a similar situation involving natural landscape regulations, site plans, or setback requirements? I'd appreciate hearing about your experience.