Missouri Water Rebates
St. Louis, Missouri Water Rebates
MSD Project Clear runs its Rainscaping Small Grants Program with the Missouri Botanical Garden. It reimburses up to $4,000 for projects that slow and soak up stormwater, including rain gardens, native plantings, and permeable patios. Two things trip people up. You have to complete the orientation before you apply, and you have to wait for a Notice to Proceed before you install anything.
Up to $4,000 · Verified July 2026
Rainscaping Small Grants Program
Open the official program site (opens in new tab)How to apply
- Confirm your property is in the MSD Project Clear service area on the online map
- Watch the orientation video and complete the survey
- Plan your rainscaping project using the Landowner Handbook
- Submit your application by mail or hand delivery
- Wait for approval and a Notice to Proceed before installing anything
- Complete the project, then submit receipts for reimbursement up to $4,000
What you'll need
- Service-area confirmation from the online map
- Orientation survey completion
- Project plan or design
- Notice to Proceed
- Itemized receipts for reimbursement
Pollinator Patch can help: It picks St. Louis-appropriate Missouri natives for the rain garden, designs an HOA-friendly layout that fits the rainscaping requirements, and assembles your plan and plant list for the application packet.
Avoid these mistakes
- Don't start installation before you receive your Notice to Proceed. Early work is not reimbursed.
- Don't skip the orientation video and survey. They are a prerequisite to applying.
- Don't apply for both the MSD grant and a Deer Creek Watershed Alliance award for the same project. A landowner may receive only one.
St. Louis Water Rebate FAQs
How much does the MSD Project Clear rainscaping grant pay?
Can I start my rain garden before applying?
Can I get both the MSD grant and the Deer Creek Alliance award?
How do I submit the application?
Rebate Concierge
Free step-by-step help with every rebate above
Every program above comes with a free guided checklist in the Pollinator Patch app: the steps in order, warnings before the mistakes that disqualify applications, and a photo locker that keeps your before and after photos and receipts together. A few high-value programs also offer an optional ready-to-file application packet for a one-time $29.99.
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.