Acidity and PH

St. Louis, MO(Zone 5b)

Maureen

Would anyone happen to have a link to a database that gives acid/ph preferences of different outdoor plants? I lost the book I usually use. >:-(

Kalispell, MT(Zone 4b)

Dirr is a good book for hardwood trees and bushes. The western Garden book by sunset is good too. Most plants that require ph specifics are labled such.

Shenandoah Valley, VA(Zone 6b)

http://plants.usda.gov/

http://www.neoflora.com/search.html

Good luck.

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