Existing stands of trees can be intercropped with annual, perennial or woody plants. Compatibility among understory and overstory plants and cultural methods is essential. A common problem with developing an enterprise around a new product is the scarcity of technical information. Sources of expertise for producing SFPs can be obtained from state forestry and conservation agencies, the Cooperative Extension Service in county offices or state universities, the Natural Resources Conservation Service and the USDA Forest Service. A market analysis and business plan are essential before starting an enterprise.
Markets are often local stores or cooperatives.
For example, shiitake, matsutake, morel and chanterelle mushrooms, as well as truffles, may be sold directly to gourmet French and Asian restaurants, Asian and natural food stores, or to a middleman or cooperative for resale to larger more distant markets. Markets for decorative products like salal and beargrass are in urban areas and overseas. Decoratives may be sold through cooperatives or to local buyers. Non-local buyers may also be reached through the Internet. Economic Some products, especially medicinals and botanicals, can have tremendous economic value, while others provide a lower but steady supplemental income.