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Planning commission recommends denial of proposal to allow rock mulch in city landscape planters
Summary
After extended discussion about aesthetics, weeds, heat, enforcement and lack of specification for rock type or depth, the commission voted to recommend denial of a proposed citywide text amendment that would permit rock mulch in required landscape planters. The denial (recommended Alternative 2) will be forwarded to city council; the transcript records a 5–1 vote.
City staff presented a proposed citywide zoning text amendment, requested by the ISU Research Park, to allow rock mulch as an alternative to organic mulch in required landscape planters. Staff explained the city’s 2017 decision to keep an organic‑mulch requirement and said consultant work at that time emphasized organic soil content as the primary driver of plant vitality; staff proposed language intended to…
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