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For a book-length answer, see Tristan Gooley, The Natural Navigator. The gist seems to be that plants are influenced by many factors: altitude, prevailing wind, soil type, shade etc. so any rule w...
Answer
For a book-length answer, see Tristan Gooley, The Natural Navigator. The gist seems to be that plants are influenced by many factors: altitude, prevailing wind, soil type, shade etc. so any rule w...