Welcome to Clesen Wholesale, the premier wholesale greenhouse and grower selling to Independent Garden Centers and Professional Landscapers in the Chicago area, Northwest Indiana, and Southeast Wisconsin. Established in 1941, our third-generation family business is your best, year-round source for Seasonal Annuals and Winter Decorations™. View four seasons of unique and beautiful products in our online Product Catalog. Learn about our extensive range of wholesale services. Log in or register for access to our Design Library, downloadable images, plus current pricing and availability. Let us know how we can help your garden center or landscaping business thrive.