When to plant cauliflower in Plano
Cauliflower is cold-hardy, so every date keys off Plano's frost dates of Mar 13.
Step 1 · Sow
Start seeds indoors
Jan 30 – Feb 20
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Dec 26 – Jan 16
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Feb 24 – Mar 21
Picking runs until conditions turn against the crop.
Step 4 · Second sowing
Autumn / second sowing
Jul 18 – Aug 1
A second window for a fall crop, timed to mature before the first frost.
Step 5 · Second harvest
Autumn crop harvest
Sep 23 – Oct 18
Maturity window for the second sowing.
Window
Days to maturity
60 – 85 d
Plano's 250-day season leaves this much room.
Cauliflower on Plano'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
FROST
FROST
MAR 13
NOV 23
Common questions
When will cauliflower be ready to harvest in Plano?
Expect to harvest from around late February (Feb 24–Mar 21) in Plano, based on its local frost dates. Confidence 74%.
When should I start cauliflower seeds indoors in Plano?
Start seeds indoors around late January (Jan 30–Feb 20) in Plano, based on its local frost dates. Confidence 78%.
When can I transplant cauliflower outdoors in Plano?
Transplant outdoors around late December (Dec 26–Jan 16) in Plano, based on its local frost dates. Confidence 80%.
Can I plant cauliflower in autumn in Plano?
Yes — Plano supports a second, autumn sowing of cauliflower around mid July (Jul 18–Aug 1), timed to mature before the first fall frost.
How long is the growing season in Plano?
Plano has roughly 250 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 Plano's frost dates.
Confidence 82/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.