112 programs · 31 states

Rain garden and stormwater rebates

Stormwater utilities and conservation districts share the cost of projects that soak rain into the ground instead of sending it to the storm drain: rain gardens, downspout disconnection, permeable paving, bioswales and dry wells. Many ask for a site sketch and a pre-approval visit.

  • 112

    programs in 31 states

  • $3

    median per square foot (9 programs pay by area)

  • 55%

    ask for a plan or plant list first

The largest programs

  • OpenPlan requiredNorth Carolina

    NCDA Community Conservation Assistance Program (CCAP)

    NC Dept of Agriculture, Division of Soil and Water Conservation (CCAP)

    Up to 75% of approved costs; FY2027 plan caps allocation at $50,000 per project (county page still cites $35,000); repair contracts capped at $5,000

    Up to $50,000 per household

  • PausedPlan requiredMinnesota

    Hennepin County Good Steward Grants

    Hennepin County Environment and Energy

    Typically $10,000-$20,000, max $25,000; covers up to 75% of eligible cost

    Up to $25,000 per household

  • Status not postedPlan requiredMinnesota

    RWMWD Stewardship Grants

    Ramsey-Washington Metro Watershed District (RWMWD)

    Covers 50 to 100 percent of project cost depending on practice and location; homeowners up to $15,000; requests over $5,000 need Board approval. Separate Maintenance Grant up to 50% of annual maintenance, max $7,500 over five years and $1,500 per year.

    Up to $15,000 per household

  • SeasonalPlan requiredMinnesota

    RCWD Water Quality Grants

    Rice Creek Watershed District (RCWD) with county conservation districts

    25-50% of total project cost up to $10,000; highly beneficial projects up to 75% of eligible materials and contracted labor, up to $10,000

    Up to $10,000 per household

  • OpenPlan requiredMaryland

    Montgomery County RainScapes Pavement Removal and Permeable Pavement

    Montgomery County Department of Environmental Protection

    Pavement removal $3 per sq ft (sod) to $7 per sq ft (conservation landscape); permeable pavement retrofit $14 per sq ft (min 100 sq ft). Residential cap $7,500 per parcel across all practices.

    Up to $7,500 per household

  • OpenPlan requiredMaryland

    Montgomery County RainScapes Rain Garden and Conservation Landscape

    Montgomery County Department of Environmental Protection

    Rain garden $10 per sq ft (min 75 sq ft); conservation landscape $5 per sq ft with no ponding or $6 per sq ft with 3 inches of ponding (250 sq ft minimum for the $6 rate). Residential total capped at $7,500 per parcel across all RainScapes practices.

    Up to $7,500 per household

  • Status not postedNorth Carolina

    Mecklenburg SWCD Urban Cost Share Program

    Mecklenburg Soil and Water Conservation District

    75% of allowable costs, up to $7,500

    Up to $7,500 per household

  • Out of fundsMinnesota

    NMCWD Cost Share Grants

    Nine Mile Creek Watershed District

    Reimbursement with 25% applicant match; resident maximums $3,750 for habitat restoration or native plantings and $6,250 for other eligible projects

    Up to $6,250 per household

By state

Sow is not affiliated with any of these agencies or utilities. Amounts and rules change, often at the start of a fiscal year, so confirm the details on the official page before you start a project. How we research these programs

Plan the project before you apply

Sow lays out your new planting on a photo of your yard and builds the plant list from plants suited to where you live.