A bottled collection of the distinctively colored regional soils would be a valuable asset for the tray-garden enthusiast. Earth colors in various parts of the country will range from pure white sand to coal black lava, from yellow ochre to brick pink, with every conceivable shade in between.
Children made aware of the vast range and scope of the plant world by an occasional detour and brief stop may not
bud overnight into working gardeners. But it would be odd indeed if they should return home without an embryonic suspicion that the world of gardens might be just a little more splendid, varied and important than the home environment had ever suggested.