When to plant german chamomile in Illinois
Illinois spans USDA zones 5a–7a, so the right time to plant german chamomile shifts by weeks across the state. The window to sow seed directly outdoors runs from about March 21 in Granite City to April 17 in McHenry — below are local dates for 226 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Chicago | 6a | April 10 | November 5 | March 27 – April 24 |
| Aurora | 5b | April 19 | October 23 | April 5 – May 3 |
| Naperville | 5b | April 28 | October 16 | April 14 – May 12 |
| Joliet | 5b | April 19 | October 25 | April 5 – May 3 |
| Rockford | 5b | April 24 | October 17 | April 10 – May 8 |
| Elgin | 5b | April 26 | October 18 | April 12 – May 10 |
| Springfield | 6a | April 15 | October 22 | April 1 – April 29 |
| Peoria | 6a | April 16 | October 23 | April 2 – April 30 |
German Chamomile in Illinois: FAQ
When can I plant german chamomile in Illinois?
Across Illinois, the time to direct-sow german chamomile spans roughly March 21 in Granite City to April 17 in McHenry, each following that city's local frost dates.
Does the german chamomile planting date vary across Illinois?
Yes. Illinois publishes 226 cities with their own frost dates, so the right german chamomile planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does german chamomile take to grow in Illinois?
German Chamomile takes about 55–65 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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