In the macro, gardening is reactive. Perhaps the genesis, in USA, is the bit of landscaping installed at new homes. A lawn, and bushes, with a tree. Lots of lawn to cut, bushes chosen typically grow 2 stories tall yet are sited at the home's foundation, serious pruning needed yearly once grown, and hopefully the tree wasn't sited where it will crack the drive or walkway. . Reactive landscapes. . Studying historic landscape across Europe for decades it only took the 1st tour to understand how…