When to plant sunflowers in Kentucky

Sunflowers
Sow outdoors in Louisville/Jefferson County
Apr 6–Apr 27

Across Kentucky the window opens between April 2 and April 22. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Louisville/Jefferson County
Apr 6–Apr 27
Last sowing for a harvest
Jul 10
Last frost, Louisville/Jefferson County
Apr 6

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
Louisville/Jefferson CountyApr 6–Apr 27
Lexington-FayetteApr 13–May 4
Bowling GreenApr 5–Apr 26
OwensboroApr 2–Apr 23
CovingtonApr 16–May 7
GeorgetownApr 18–May 9
RichmondApr 15–May 6
ElizabethtownApr 16–May 7
FlorenceApr 18–May 9
NicholasvilleApr 13–May 4
HopkinsvilleApr 4–Apr 25
IndependenceApr 18–May 9
JeffersontownApr 3–Apr 24
FrankfortApr 15–May 6
HendersonApr 9–Apr 30
PaducahApr 6–Apr 27
RadcliffApr 16–May 7
AshlandApr 22–May 13
ErlangerApr 18–May 9

Questions

When should I plant sunflowers in Kentucky?

In Louisville/Jefferson County, sow outdoors from April 6 to April 27. Across Kentucky the window opens between April 2 and April 22, 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 Kentucky

Sunflowers in other states

Frost dates for every city in Kentucky