Flower identification tags that are vinyl are an economical option. They are weather-resistant to a point, as they will not be harmed by rain, but over time they may crack or deteriorate if left in direct sun for long periods of time. You can purchase vinyl tags with pre-printed labels for certain popular flowers, such as roses, zinnias and pansies, and you can buy erasable labels that you can label with a special marker. with ink that resists fading in the sun.
Order a set of custom, hand-carved wood flower identification tags. These tags make a nice addition to a country home, a long cabin home or a home that features a natural, woodsy theme. You can have your tags hand-carved by a local woodsmith or you can purchase them online. Make sure your wood tags have been varnished so that they can endure extreme elements such as rainstorms and snow.
Insert a set of metal tags in a metal of your choice -- such as copper or pewter. You often can select an embellished design for your flower identification tags -- such as a Victorian-theme tag template. You can find tags with pre-printed labels and with blank labels that you can write upon.
Perhaps the most economical flower identification tag are plastic tags. These tags come in a wide variety of styles and are quite minimalist. Some tags look like tongue depressors or Popsicle sticks. You can write on the front and back with fade-resistant or erasable pen.