Growing german chamomile in zone 4a
(Zone 4a = an average winter low of -30°F to -25°F.)
In USDA zone 4a, the typical last spring frost is May 12 and the first fall frost is September 28. Here is when to plant german chamomile against those dates.
Start seeds indoorsMarch 17 to March 31
Direct sow outdoorsMay 5 to May 12
These are zone 4a averages
Computed from 795 ZIP codes in zone 4a. 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 german chamomile from University of Wisconsin-Madison Division of Extension (Wisconsin Horticulture). Zone dates are medians; local conditions vary.