When to plant kale in Aurora

Kale is cold-hardy, so every date keys off Aurora's frost dates of May 5.
Step 1 · Sow
Start seeds indoors
Mar 24 – Apr 14
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 14 – May 5
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jun 8 – Jun 28
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 4 – Jul 18
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 4 – Sep 24
Maturity window for the second sowing.
Window
Days to maturity
55 – 75 d
Aurora's 152-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
MAY 5
OCT 8

Common questions

When can I sow kale outdoors in Aurora?

Direct-sow around mid April (Apr 14–May 5) in Aurora, based on its local frost dates. Confidence 89%.

When will kale be ready to harvest in Aurora?

Expect to harvest from around early June (Jun 8–Jun 28) in Aurora, based on its local frost dates. Confidence 80%.

When should I start kale seeds indoors in Aurora?

Start seeds indoors around late March (Mar 24–Apr 14) in Aurora, based on its local frost dates. Confidence 85%.

When can I transplant kale outdoors in Aurora?

Transplant outdoors around mid April (Apr 14–May 5) 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 early July (Jul 4–Jul 18), timed to mature before the first fall frost.

How long is the growing season in Aurora?

Aurora has roughly 152 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.