Growing annual salvia (bedding sage) in zone 4b
(Zone 4b = an average winter low of -25°F to -20°F.)
In USDA zone 4b, the typical last spring frost is May 8 and the first fall frost is October 1. Here is when to plant annual salvia (bedding sage) against those dates.
Start seeds indoorsMarch 13 to March 27
Transplant outdoorsMay 8 to May 22
These are zone 4b averages
Computed from 1,251 ZIP codes in zone 4b. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.
Get my exact datesUSDA 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 annual salvia (bedding sage) from Clemson Cooperative Extension, Home & Garden Information Center. Zone dates are medians; local conditions vary.