gardening zone map for texas?

Answer 1

The zones have shifted slightly.

Only the Arbor Day Foundation includes the updated weather information in their zone chart. The USDA collected it in 2004, but the current administration blocked them from releasing it. (since it actually is more evidence toward global warming - they don't want discussion - they only want to suppress information apparently)

So the Arbor Day Foundation went and collected the same data (from the same sources) and compiled it themselves.

The USDA did release a "new" zone map, but basically it merely broke down zones into a/b sections, and shows some microclimates (more detailed) - HOWEVER - it is based on the old (1990) data, not the new data.

You can see the new Zone Hardiness Chart here:

http://www.arborday.org/treeinfo/zonelookup.cfm

Answer 2

http://www.garden.org/zipzone/index.php Just put in your zip