Since our flowers don't suffice for the little hummingbirds/gluttons, I make a sugar syrup nectar to fill our two feeders. It's an easy recipe--1 c. white sugar, 4 c. water brought to a gentle boil for 3 minutes (stirring often to emulsify the sugar). Let cool and keep refrigerated until needed. Do not add any red coloring! Not needed, and possibly toxic to the hummers. We get such joy from watching the hummingbirds that the small cost of the sugar and time is well worth it.