Growing globe amaranth in zone 8b

(Zone 8b = an average winter low of 15°F to 20°F.)

In USDA zone 8b, the typical last spring frost is March 17 and the first fall frost is November 14. Here is when to plant globe amaranth against those dates.

USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service / Oregon State University PRISM Group. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020. Planting windows for globe amaranth from University of Wisconsin-Madison Division of Extension (Wisconsin Horticulture). Zone dates are medians; local conditions vary.