The optimal period for sowing sunflower seeds in Tennessee is spring, after the last expected frost. Soil temperatures should consistently reach at least 55F (13C) for successful germination. Planting too early risks seed rot in cold, damp soil, hindering development. For example, waiting until late April or early May is advisable in many regions of the state.
Timely planting is crucial for maximizing yield and overall plant health. Starting at the correct moment allows sunflowers to benefit from the full growing season, leading to larger flower heads and increased seed production. Furthermore, healthy sunflowers can contribute positively to the local ecosystem by attracting pollinators such as bees and providing food sources for birds later in the season. Historically, sunflower cultivation has played a role in agricultural practices for both food and ornamental purposes.
