Harvesting a sunflower will drop 1 Sunflower, and 0-2 Sunflower Seeds. The total seed drop often numbers around 75% to 90% of the number of sunflowers harvested.
Sunflowers may be planted in both Summer and Fall. There is no difference in their behavior in either season.
If a Sunflower plant (of any growth stage) is in the ground on the 28th of Summer, it will continue growing on the 1st of Fall as though nothing had changed. Fertilizer in the ground underneath a Sunflower plant on Summer 28 will not disappear on Fall 1.
If placed within proper range of a Bee House (5 squares in any cardinal direction), a Sunflower will cause the Honey produced to become more profitable.
Sunflowers are not a high-value crop, but when picked drop multiple seeds, which can be instantly replanted and expand the crop. Additionally they drop two goods - the flower, and the seed. Both can be quickly processed into oil.
History
1.4: Sunflowers can now make Sunflower Honey. Can be used in Tailoring.