When to plant tomato in Colorado Springs
Tomato is frost-tender, so every date keys off Colorado Springs's last spring frost of May 5.
Step 1 · Sow
Start seeds indoors
Apr 8 – Apr 29
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 9 – Jun 30
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 8 – Sep 2
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 85 d
Colorado Springs's 153-day season leaves this much room.
Tomato on Colorado Springs'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
MAY 5
OCT 5
Common questions
When will tomato be ready to harvest in Colorado Springs?
Expect to harvest from around early August (Aug 8–Sep 2) in Colorado Springs, based on its local frost dates. Confidence 79%.
When should I start tomato seeds indoors in Colorado Springs?
Start seeds indoors around early April (Apr 8–Apr 29) in Colorado Springs, based on its local frost dates. Confidence 84%.
When can I transplant tomato outdoors in Colorado Springs?
Transplant outdoors around early June (Jun 9–Jun 30) in Colorado Springs, based on its local frost dates. Confidence 85%.
How long is the growing season in Colorado Springs?
Colorado Springs has roughly 153 frost-free days, which is enough time to grow tomato to maturity outdoors.
The rule of thumb
Sow tomato 6–8 weeks before your last spring frost; plant out 2–3 weeks after it. Every date on this page is derived from that rule and Colorado Springs's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.