Position a cedar garden bench next to the flowerbed. In addition to adding to the flowerbed decor, this will give you a place to sit and enjoy the flowers.
Place a rustic cedar wheelbarrow decoration in one corner of the flowerbed. You can plant flowers in it to use it as a planter or leave it plain.
Hang a primitive set of wood and metal wind chimes on an arbor or on a tree branch that borders the flowerbed.
Put a copper birdbath in your flowerbed. Copper develops a green patina over time that will complement the other primitive elements of the flowerbed.
Arrange wooden folk carvings such as garden gnomes or animals throughout the flowerbed. A whimsical frog or rabbit poking its head out of the flowers can add country charm to a flowerbed.