When to plant sunflowers in Connecticut

Sunflowers
Sow outdoors in Bridgeport
Apr 5–Apr 26

Across Connecticut the window opens between April 5 and May 8. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Bridgeport
Apr 5–Apr 26
Last sowing for a harvest
Jul 15
Last frost, Bridgeport
Apr 5

Sow outdoors up to 3 weeks after the last frost. Sow every two weeks until midsummer for flowers through fall.

Sunflowers planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
BridgeportApr 5–Apr 26
StamfordApr 17–May 8
New HavenApr 17–May 8
HartfordApr 17–May 8
WaterburyApr 26–May 17
NorwalkApr 17–May 8
DanburyMay 1–May 22
New BritainApr 17–May 8
West HartfordApr 17–May 8
BristolApr 25–May 16
MeridenApr 26–May 17
West HavenApr 17–May 8
MilfordApr 5–Apr 26
East HartfordApr 17–May 8
MiddletownApr 26–May 17
SheltonApr 25–May 16
NorwichApr 14–May 5
ManchesterApr 17–May 8
TorringtonMay 8–May 29
NaugatuckApr 18–May 9
NewingtonApr 17–May 8
New LondonApr 16–May 7
East HavenApr 17–May 8
WethersfieldApr 17–May 8
North HavenApr 18–May 9

Questions

When should I plant sunflowers in Connecticut?

In Bridgeport, sow outdoors from April 5 to April 26. Across Connecticut the window opens between April 5 and May 8, depending on the local last frost.

How is this date worked out?

Sow outdoors up to 3 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Connecticut

Sunflowers in other states

Frost dates for every city in Connecticut