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HD 2420

An Act relative to promoting native plantings for stormwater management, pollinator support and climate resilience

194th Legislature (2025-2026) Introduced by James Arena-DeRosa and 1 co-sponsor

Massachusetts bill mandates municipalities and agencies use native plants in stormwater management and public spaces to reduce flooding, support pollinators, and build climate resilience.

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Bill Summary · HD 2420

Legislative bill overview

HD 2420 establishes requirements for municipalities and state agencies to incorporate native plant species into stormwater management systems, landscaping projects, and public spaces. The bill aims to leverage native plantings as a nature-based solution to reduce flooding while simultaneously supporting pollinator populations and enhancing local climate resilience.

Why is this important

Native plants require less maintenance, irrigation, and chemical inputs than non-native species while naturally managing stormwater runoff—reducing strain on aging municipal infrastructure and flood risks. This approach addresses multiple environmental challenges simultaneously: stormwater management, pollinator habitat loss, and climate adaptation, while potentially reducing long-term municipal costs.

Potential points of contention

  • Implementation costs and timelines: Municipalities may face upfront expenses converting existing landscapes and redesigning stormwater systems, with unclear state funding mechanisms or reimbursement schedules
  • Definition and enforcement clarity: The bill's scope regarding which projects trigger native planting requirements and how compliance will be monitored and enforced remains a common implementation challenge
  • Native plant availability and expertise: Local nurseries and landscaping contractors may lack sufficient inventory of native species or trained personnel to properly install and maintain them at scale

Compiled from official sources — confirm details with the bill’s official record.

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