When to plant sunflowers in Kansas

Sow outdoors in Wichita

Apr 11–May 2

Across Kansas the window opens between April 4 and April 28. Find your city below; the dates follow each town's own average last frost.

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

WichitaApr 11–May 2

Overland ParkApr 10–May 1

Kansas CityApr 4–Apr 25

OlatheApr 10–May 1

TopekaApr 16–May 7

LawrenceApr 12–May 3

ShawneeApr 16–May 7

LenexaApr 10–May 1

ManhattanApr 16–May 7

SalinaApr 18–May 9

HutchinsonApr 18–May 9

LeavenworthApr 12–May 3

LeawoodApr 8–Apr 29

Dodge CityApr 21–May 12

Garden CityApr 28–May 19

DerbyApr 14–May 5

GardnerApr 13–May 4

EmporiaApr 15–May 6

Junction CityApr 12–May 3

HaysApr 19–May 10

PittsburgApr 7–Apr 28

When should I plant sunflowers in Kansas?

In Wichita, sow outdoors from April 11 to May 2. Across Kansas the window opens between April 4 and April 28, 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.