18" x 24" poster describing inter-planting compatibility between families of plants. Plant families are represented on vertical columns and horizontal rows. Where those intersect show the relationship between plants when placed next to one another. Poster also shows various examples of plants that are compatible with all types of vegetables.
Posters may be put on a bulletin board or a wall by themselves. People can easily use their fingertips to trace where plants intersect at rows and columns.
