When to plant kale in Aurora

Kale is cold-hardy, so every date keys off Aurora's frost dates of Apr 21.
Step 1 · Sow
Start seeds indoors
Mar 10 – Mar 31
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Mar 31 – Apr 21
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
May 25 – Jun 14
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 13 – Jul 27
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 13 – Oct 3
Maturity window for the second sowing.
Window
Days to maturity
55 – 75 d
Aurora's 175-day season leaves this much room.
Kale on Aurora's growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
APR 21
OCT 17

Common questions

When can I sow kale outdoors in Aurora?

Direct-sow around late March (Mar 31–Apr 21) in Aurora, based on its local frost dates. Confidence 89%.

When will kale be ready to harvest in Aurora?

Expect to harvest from around late May (May 25–Jun 14) in Aurora, based on its local frost dates. Confidence 80%.

When should I start kale seeds indoors in Aurora?

Start seeds indoors around early March (Mar 10–Mar 31) in Aurora, based on its local frost dates. Confidence 85%.

When can I transplant kale outdoors in Aurora?

Transplant outdoors around late March (Mar 31–Apr 21) in Aurora, based on its local frost dates. Confidence 89%.

Can I plant kale in autumn in Aurora?

Yes — Aurora supports a second, autumn sowing of kale around mid July (Jul 13–Jul 27), timed to mature before the first fall frost.

How long is the growing season in Aurora?

Aurora has roughly 175 frost-free days, which is enough time to grow kale to maturity outdoors.

The rule of thumb

Sow kale 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 Aurora's frost dates.

Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.