| Betz, Susan | | (517) 849-2470 | Hillsdale |
| Dow Gardens (The) | | (989) 631-2677 | Midland |
| Frederik Meijer Gardens & Sculpture Park | (888) 957-1580 | (616) 975-3144 | Kent |
| Gee Farms Nursery & Greenhouses LLC | (800) 860-2874 | (517) 769-6772 | Jackson |
| James Brothers Landscaping Supplies, Inc | | (734) 692-3400 | Wayne |
| Landscape Design and Associates LLC | | (810) 360-0365 | Livingston |
| Landscape Impressions Designs & Garden | | (616) 698-6350 | Kent |
| Liberty Street Gardens | | (248) 417-8245 | Oakland |
| Matthaei Botanical Gardens | | (734) 998-7175 | Washtenaw |
| Monroe County MSU Extension | | (734) 240-3170 | Monroe |
| Natures Needs Landscape Construction | (800) 404-6657 | (616) 794-1254 | Ionia |
| Ron Kare Landscape, Inc. | | (586) 296-8060 | Macomb |
| Sinacori Landscaping, Inc. | | (586) 677-6400 | Macomb |
| U of M Grounds & Waste Mgmt. | | (734) 763-5539 | Washtenaw |
| Windmill Island Gardens, City of Holland | (888) 535-5792 | (616) 355-1030 | Ottawa |
| YardWerks, LLC | | (734) 255-2440 | Wayne |
