In article ,
wrote:

Think of me as being the village idiot.... it never hurts to ask. The quality
of the answer often depends upon the quality of the question.

Albert E said once you say you know you stop thinking about it. I'd say
it also freezes you in time as best practice seems to continue to
evolve.

http://www.ted.com/index.php/talks/m...plant_s_eye_vi
ew.html

Bill

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Garden in shade zone 5 S Jersey USA