Perennial sunflowers, however, do require deadheading. These varieties are often shorter, bushier, and will have ...

But are sunflowers perennials that will come back after the winter? That depends on which sunflower you’re talking about, because some species are perennials and others are annual. Here's what ...

Annual sunflowers are the ones typically grown for their height and their large flowerheads. However, you can grow perennial sunflowers - although these are generally smaller and clump-forming.