Ann,
I certainly would spend some time on selecting a hosta that will grow well in the micro climate that is available to the gardener. Some complain about a blue hosta that does not look blue, and I find out that the hosta does not in fact have the dense shade that it needs. Of course, there are blue hostas of all sizes that will perform well in much less shade.
Above all, point out that some hostas will grow well in full sun; however, it needs water every day.
And watering is yet another crutial requirement for growing hostas. Some water once a week for a long time. Others do not water and depend on Mother Nature to supply the water.
I water my hostas every day during the growing season, and I water twice a day if there is a period of more than two weeks without rain.
Planting after adding soaked alfalfa is very important to discuss and instruct. The alfalfa feeds up to four years, leaving more time to water while you are enjoying your hostas.
Encourage potting hostas. Large spectacular single hostas make wonderful addition to a patio or garden. Miniature hostas in groups in an actractive planter may be used as a centerpiece on an outdoor table. Small gardens would house many potted hostas.