Finding reliable U.S. Heat Zone reference(s)
Hey everyone! I've been looking up several plants recently and wanted to locate their respective U.S. Heat Zones, however, usually every source I look up on google tells me something different. This isn't exactly helpful when I need to know the exact Heat Zones for each specific plant. Is there a site or sites out there that actually have true, reliable information so I don't lead myself and others astray? Thank you!