Maryland Native Landscaping Rebates

$5 per square foot for conservation landscaping (replacing lawn/invasive plants with native plants). $6/sq ft with 3 inches of ponding (250 sq ft minimum). Also covers rain gardens, green roofs, permeable pavement, and pavement removal. Max $7,500 residential, $20,000 commercial. The $7,500 residential maximum is a lifetime total per parcel across all RainScapes projects combined, not a separate maximum for each project (confirmed by Montgomery County RainScapes program staff, August 2026).

One of the most generous conservation landscaping programs on the East Coast. Project manuals, planting guides, plant calculators, and contractor lists available on the county website.

Rebates for installing rain gardens planted with native species to capture and filter stormwater runoff. Part of the broader RainScapes Rewards program, which carries one lifetime maximum of $7,500 per residential parcel across every RainScapes project combined. A rain garden and a conservation landscaping project on the same parcel draw from that single $7,500, they do not each carry their own $7,500 (confirmed by Montgomery County RainScapes program staff, August 2026).

Shares one lifetime $7,500 residential cap with conservation landscaping and every other RainScapes practice on the same parcel. Montgomery County provides design assistance and contractor referrals.

Prince George's County RainScapes provides rebates for conservation landscaping (replacing turf or invasive plants with native species), rain gardens, rain barrels, cisterns, green roofs, and permeable pavement. Rates and maximums vary by practice and year. Pre-approval required before installation.

Program is the PG County Rain Check Rebate (Chesapeake Bay Trust), not RainScapes.

An ongoing credit on the quarterly stormwater utility fee (not a one-time rebate): up to a 50% reduction for properties that implement on-site stormwater management facilities such as rain gardens (City of Annapolis; last verified June 2026).

Recurring stormwater-fee credit, not a one-time cash rebate.

An ongoing annual credit on the Watershed Protection and Restoration Fee (not a one-time rebate): up to 50% for on-site practices providing water-quality treatment (rain gardens qualify; minimum 1 inch of rainfall treated for full credit). The credit continues annually while the practice is maintained and passes County inspection (Anne Arundel County BWPR; last verified June 2026).

Recurring fee credit. Distinct from the county property TAX credit (which is out of scope).

A recurring credit of up to 50% off the flat Stormwater Remediation Fee (FY2026 = $162 per improved property) for residential parcels with a qualifying stormwater practice. A rain garden capturing runoff from at least 800 sq ft of impervious surface qualifies (other options: two or more rain barrels of at least 110 gallons, at least 800 sq ft of pervious pavement, or Bay-Wise certification). Because the fee is a flat per-property rate, the 50% credit is a fixed amount, not a per-application formula. This is an ongoing bill credit, not a one-time cash rebate (Charles County Watershed Protection and Restoration Fund; last verified June 2026).

Recurring fee credit on a flat $162 (FY2026) fee, not a cash rebate. Distinct in form from the impervious-area-formula credits in Montgomery/PG/Howard counties (those are out of scope).

Rebates of $10 per square foot for rain gardens (75 sq ft minimum) and $6 per square foot for conservation landscaping with soil improvement ($5 per square foot without; 200 contiguous sq ft minimum), up to a $5,000 cap per property owner for residential properties and not-for-profits. Limited to property owners within Gaithersburg city limits (City of Gaithersburg, administered by the Chesapeake Bay Trust; last verified June 2026).

Administered by the Chesapeake Bay Trust.

An ongoing credit on the stormwater utility fee (not a one-time rebate): tiered up to a 60% cap, available for residential practices as small as a rain garden (credit applies to the impervious area draining to the practice, so effective credit is usually well below 60%). Requires a 20-year maintenance agreement and ongoing inspection (City of Hagerstown; last verified June 2026).

Recurring stormwater-fee credit, not a one-time cash rebate.

Reimburses 75% of project cost for residential stormwater practices: rain gardens up to $5,000, conservation landscaping up to $3,000, and urban tree canopy up to $1,000 ($150 per tree); also rainwater harvesting, impervious removal, permeable hardscape, and green roofs. Limited to homes built before 2003; projects must use at least 75% native plants (Howard County Stormwater Management / Clean Water Howard; last verified June 2026).

A year-round cost-share grant in which the Town matches the cost of a project, up to $5,000, for native habitat, bayscape, or bioretention landscaping, or a reduction of impervious surface (pavers, rooftop disconnect, drywells, or a combination of Best Management Practices) that promotes water quality and habitat creation (Town of Ocean City Environmental Mini-Grants page; last verified July 2026).

Listed among Ocean City's Environmental Mini-Grants alongside a Pollinator Garden plant giveaway and a Rain Barrel rebate (both out of scope for this directory). Found during the 2026-07-29 discovery sweep.

Rebates of $10 per square foot for rain gardens and $6 per square foot for conservation landscaping with soil improvement ($5 per square foot without), up to a $5,000 lifetime cap for residential properties and not-for-profits. Rain gardens require a 75 sq ft minimum and conservation landscaping a 250 sq ft minimum. Limited to property owners within Rockville city limits (City of Rockville, administered by the Chesapeake Bay Trust; last verified June 2026).

Montgomery County residents outside Rockville city limits are not eligible (separate stormwater fee). Administered by the Chesapeake Bay Trust.

An ongoing credit on the stormwater utility fee (not a one-time rebate): up to a 50% reduction for qualifying measures including rain gardens (also tree plantings, permeable pavements, green roofs). Apply by April 30 for the following billing year; rain-garden credits run three years then recertify (City of Takoma Park; last verified June 2026).

Recurring stormwater-fee credit, not a one-time cash rebate.