When to plant broccoli in Knoxville
Common questions
When will broccoli be ready to harvest in Knoxville?
Expect to harvest from around late May (May 24–Jun 18) in Knoxville, based on its local frost dates. Confidence 80%.
When should I start broccoli seeds indoors in Knoxville?
Start seeds indoors around late February (Feb 25–Mar 18) in Knoxville, based on its local frost dates. Confidence 85%.
When can I transplant broccoli outdoors in Knoxville?
Transplant outdoors around late March (Mar 25–Apr 15) in Knoxville, based on its local frost dates. Confidence 89%.
Can I plant broccoli in autumn in Knoxville?
Yes — Knoxville supports a second, autumn sowing of broccoli around mid July (Jul 14–Jul 28), timed to mature before the first fall frost.
How long is the growing season in Knoxville?
Knoxville has roughly 201 frost-free days, which is enough time to grow broccoli to maturity outdoors.
Sow broccoli as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and Knoxville's frost dates.