Growing fennel in zone 6b

(Zone 6b = an average winter low of -5°F to 0°F.)

In USDA zone 6b, the typical last spring frost is April 23 and the first fall frost is October 22. Here is when to plant fennel against those dates.

Start seeds indoorsMarch 12 to March 26

Direct sow outdoorsApril 23

Expected harvestJune 22 to July 22About 60 to 90 days from sowing.

These are zone 6b averages

Computed from 5,242 ZIP codes in zone 6b. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.

Get my exact 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 fennel from Utah State University Extension. Zone dates are medians; local conditions vary.