Sweet-Seed Sweet-Nectar Hummingbird Sucrose Nectar Concentrate 750 ml, Pack of 12Gone are the mess and hassle of making your own hummingbird nectar just to be 100 percent certain that only the best of ingredients are being offered at your feeders. Our sweet nectar hummingbird nectar concentrate makes 225 ml (3X) by simply adding the appropriate amount of regular tap water. Infused with all natural, steam distilled wildflower hydrosols that your hummers will love Added calcium promotes healthy egg development and electrolytes aid