Thinking about problem-solving in gardens and landscapes is interesting. What we bring to the process is gardening ideas, gleaned from memories, experience, and observation melded with the practicalities of light, soil, and climate. A class today had me thinking about this again.There's no point in dreaming of lush lilacs in Southern climates nor of productive fruit orchards of apples, peaches, nectarines, cherries, or apricots (unless you're willing to do the obligatory weekly spray maintenance, whether organic or not). We can easily grow blueberries, muscadine and scuppernong grapes,…