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Maryland Water Rebates

Montgomery County, Maryland Water Rebates

The Montgomery County RainScapes Rewards program pays homeowners to install rain gardens planted with native species that capture and filter stormwater runoff. Rain gardens earn $10 per square foot, with a 75 square foot minimum, toward a lifetime maximum of $7,500 per property. You submit a scaled planting plan and plant list for staff review before you build.

$10 / sq ft, up to $7,500

RainScapes Rewards Rain Garden

Open the official program site

How to apply

  1. Confirm your property is in eligible Montgomery County area
  2. Prepare a scaled planting plan and native plant list
  3. Submit for staff review and pre-approval before building
  4. Install the rain garden, at least 75 sq ft, with native species
  5. Request the post-install inspection and submit for the $10 per sq ft rebate

What you'll need

  • Scaled planting plan
  • Native plant list
  • Pre-approval confirmation
  • Itemized receipts and after photos

Pollinator Patch can help: It picks Central Maryland natives suited to a Montgomery County rain garden, designs an HOA-friendly layout that replaces turf and intercepts runoff, and builds the scaled plant list staff need for pre-approval.

Avoid these mistakes

  • Don't install before staff review and pre-approval. The planting plan has to be approved first.
  • Don't fall below the 75 sq ft minimum or use non-native plants.
  • Don't assume funds are always open. They are first-come, first-served starting July 1.

Montgomery County Water Rebate FAQs

How much does Montgomery County pay for a rain garden?
$10 per square foot, with a 75 square foot minimum, up to a lifetime maximum of $7,500 per property across all RainScapes practices (Montgomery County RainScapes Rewards, verified June 2026).
Do I need approval before building?
Yes. You submit a scaled planting plan and plant list for staff review, and you must have written pre-approval before installing the garden.
Who is eligible?
Property owners in Montgomery County outside the municipalities of Rockville, Gaithersburg, and Takoma Park.
When does funding open?
Funds are awarded first-come, first-served beginning July 1, the first day of the county fiscal year.

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Get started

Plan a native yard with Pollinator Patch.

Pick the right native plants for your region, design an HOA-friendly layout, and generate documentation that supports your rebate application.

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See a problem with a program? Report it

Programs change throughout the year. If something here is out of date or wrong, tell us and we'll check it against the provider.

We compile these programs from utility and city pages, and not every amount here has been independently confirmed. Program details also change throughout the year. Always verify requirements, amounts, and eligibility directly with your water utility before starting work. Pollinator Patch is not affiliated with any rebate program and does not guarantee approval.