How Long do Sunflowers Live?

Answer

Sunflowers are annual plants, which means that they live only for one growing season (germination to harvest). It may seem as if a sunflower is a perennial plant, but any new growth in the next season can be attributed to seeds that were dropped from the flower head when the seeds were harvested. You can find more info at: www.hort.purdue.edu
Reference:
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