Microclimate effects also may significantly increase or decrease a plant's chance of success in any landscape planting. For example, a courtyard sheltered by two-story buildings on the north, east, and west but open to the south might be warm and protected during the winter for a normally non hardy small tree to grow quite nicely. Or, a tree that would grow well on average sites might not survive if planted on the top of a windy hill with no protection. This information, though not complete, is to help you select plants suited to your requirements. Complete information would take perhaps a page per plant.
Users are encourages to consult other sources of information before making final plant selections.
Local Iowa certified nurserymen, forester, arborists, botanists, and landscape architects could be consulted to be sure that the selected plants are suitable for the intended purpose and can be expected to do well in your area.