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Photo LibraryGrowth Stages
Stage 3: R-5.1

This stage is the beginning of flowering. The stage can be divided into substages dependent upon the percent of the head area (disk flowers) that has completed or is in flowering. Ex. R-5.3 (30%), R-5.8 (80%) etc.

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Pollen Shed

Name: Pollen Shed
Description: A sunflower head in the R-5.1 growth stage with pollen falling on the leaves.
ID Name: SUN264
Size: 245K


Name: R-5.1
Description: Sunflower plant in R-5.1 stage
ID Name: SUN111308N
Credits: NDSU Ext. Bulletin 25
Size: 85K

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