One simple way to make a Christmas wreath is to use floral wire to attach greenery to a 4-wire wreath form. Another is to poke the stems of fresh flowers into a foam wreath.
To make an evergreen and grape wreath, wire bunches of artificial grapes to the inside circle of a 4-wire wreath form. Keep adding grapes, packing them tightly together, until the band is 3 to 4 inches wide. Insert small pine or spruce branches between the wires all the way around the form. Then weave some small cedar branches over the evergreens and under the grapes. Use floral wire to secure any loose branches. Use this method to create several styles of wreaths. Substitute the grapes for cranberries or use bunches of holly and laurel leaves instead of evergreens.
To make a carnation wreath, soak a foam wreath form in water according to the manufacturer's instructions. Trim several carnation stems. A 16-inch diameter wreath requires approximately 80 carnations to ensure a full appearance. Insert carnations into the form until it is entirely hidden. Tie a thick red ribbon into a large bow, and twist a piece of wire around the middle of the bow. Poke the ends of the wire into the wreath form to hold the bow in place. Prolong the life of the flowers by storing them in a cool place until you are ready to use them.