Table 1.  Suggested sunflower seeding dates in South Dakota.

 

Approximate seeding dates by region

Suggested seeding dates*

Historical acres seeded, 1970 – 94**

 

Region

Earliest

Latest

Desired range

10%

50%

90%

May 5

       1

       1

Jun 18

         23

         23

May 20 - Jun 15

May 15 - Jun 10

May 15 - Jun 10

May 24

         19

         19

Jun 12

           4

           4

Jun 29

         23

         24

NW

NC

NE

-----

May 1

        1

-----

May 1

        1

-----

May 15 - Jun10

May 17 - Jun 7

-----

May 19

         24

-----

Jun 3

         6

-----

Jun 21

         29

WC

C

EC

-----

May 1

        1

-----

May 1

        1

-----

May 15 - Jun 7

May 15 - Jun 10

-----

May 24

         19

-----

Jun 9

           2

-----

Jun 21

        20

SW

SC

SE

* Dates are best estimates obtained from historical and research data within a region.

   Insufficient or missing data is indicated by “-----“.

** SD Agricultural Statistical Reporting Service.

Compiled by:  R. G. Hall, Extension Crops, South Dakota State University, Brookings, SD.

 

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