Jul 25, 2025 · The best time to plant sunflowers is in early spring after the risk of frost has passed. "In most areas, this would be around late April to mid-May," says Alexander Betz, landscape …

It’s best to sow sunflower seeds directly into the garden (or outdoor containers) after the danger of spring frost has passed, anytime after soils have warmed to at least 50°F (10°C).

May 20, 2025 · Growing sunflowers is easy because they're heat-tolerant, pest-resistant and fast-growing. Learn how to grow and when to plant sunflowers from HGTV experts.

Jul 1, 2024 · When Should Sunflowers Be Planted? Plant sunflowers around two to three weeks after the last expected frost date for your growing zone. Wait until the soil temperature is …

Oct 7, 2025 · Look at your local planting calendar for specifics: cold planting zones plant sunflowers late May and into June, while warmer growing zones will start growing in March …

Apr 1, 2025 · Best Time to Plant Sunflowers Whether you are planting 50 acres or a 6-foot row of sunflowers, it's essential to wait until soil temperatures are above 50 degrees and the chance …

So, when is the best time to plant sunflowers? Generally, sunflowers should be planted after the last frost in the spring, when the soil has warmed up and the weather is consistently warm.

Feb 19, 2025 · In most temperate regions, the best time to plant sunflower seeds is in the spring, once the danger of frost has passed. For many gardeners, this falls between late March and …

Feb 14, 2023 · Early spring – sow sunflowers indoors, under grow lights. 2. Mid spring – sow sunflowers outdoors, directly into the garden. 3. In winter – sow seeds in plastic milk jugs …

Jul 11, 2025 · There are three ways to plant sunflower seeds: early spring, sowing indoors under grow lights, mid-spring, sowing outdoors, and winter. The best time to plant sunflower seeds is …