Viewing post #790247 by skylark - Garden.org

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You are viewing a single post made by skylark in the thread called New York City Roof-top Greenhouses.

Feb 15, 2015 9:49 PM CST

JC NJ/So FL (Zone 7b)

hydro is usually not organic - synthetic fertilizers are used, since otherwise it is very difficult to keep it free of contaminants (algea, etc).

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