Seed Growth Stages [top] — Sunflower

As the plant reaches maturity, a small bud begins to form at the top of the stem. This bud will eventually become the sunflower head, composed of hundreds of tiny flowers. During this stage, the plant's energy is focused on developing the bud, which will soon become the prominent feature of the sunflower.

: The first root, or radicle, pushes downward to anchor the plant and seek nutrients. sunflower seed growth stages

Sunflowers (Helianthus annuus) are fast-growing, warm-season annuals. Their development is typically divided into a vegetative (V) phase and a reproductive (R) phase. This guide uses the standard sunflower staging system. As the plant reaches maturity, a small bud

: The seed absorbs water, causing it to swell and the outer shell to split. : The first root, or radicle, pushes downward

While the sunflower seed growth stages provide a general outline, several factors can influence the plant's development, including: