Welcome to Great Swamp Greenhouses, a unique garden center located in the heart of the Great Swamp National Wildlife Refuge, Meyersville, NJ, one mile from the center of town. What makes us different from other garden centers? We grow almost all of our plants, at this retail location, as well as a 51-acre growing facility in Pittstown, NJ. This eliminates a middle man, lets us control the quality and quantity of our plants and keep our prices reasonable, while still providing you with great service.