When to plant cauliflower in Tacoma

Cauliflower is cold-hardy, so every date keys off Tacoma's frost dates of Mar 8.
Step 1 · Sow
Start seeds indoors
Jan 25 – Feb 15
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Feb 22 – Mar 15
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Apr 23 – May 18
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 16 – Jul 30
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 21 – Oct 16
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Tacoma's 246-day season leaves this much room.
Cauliflower on Tacoma'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
MAR 8
NOV 13

Common questions

When will cauliflower be ready to harvest in Tacoma?

Expect to harvest from around late April (Apr 23–May 18) in Tacoma, based on its local frost dates. Confidence 76%.

When should I start cauliflower seeds indoors in Tacoma?

Start seeds indoors around late January (Jan 25–Feb 15) in Tacoma, based on its local frost dates. Confidence 81%.

When can I transplant cauliflower outdoors in Tacoma?

Transplant outdoors around late February (Feb 22–Mar 15) in Tacoma, based on its local frost dates. Confidence 85%.

Can I plant cauliflower in autumn in Tacoma?

Yes — Tacoma supports a second, autumn sowing of cauliflower around mid July (Jul 16–Jul 30), timed to mature before the first fall frost.

How long is the growing season in Tacoma?

Tacoma has roughly 246 frost-free days, which is enough time to grow cauliflower to maturity outdoors.

The rule of thumb

Sow cauliflower 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 Tacoma's frost dates.

Confidence 85/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.