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Sunflowers grow in the summer and will face the sun when in bloom. In most areas, sow them in spring. In very mild climates, they sometimes also grow during the cooler months as well.

Sunflowers grow near highways and Kansas, Minnesota, and North and South Dakota are one of the cheifs in growing sunflowers.

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14y ago
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10y ago

Short answer: they are warm season plants.

Sunflowers (Helianthus annuus) are a summer blooming annual dicot. They need full sun, moist, well-drained soil and heavy mulch to support their tall structure and heavy blooms, and they are heat/drought tolerant, but they do not tolerate cold. They should be planted after any danger of a spring frost, and soil temps should be 55-60F.

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10y ago

Short answer: they are warm season plants.

Sunflowers (Helianthus annuus) are a summer blooming annual dicot. They need full sun, moist, well-drained soil and heavy mulch to support their tall structure and heavy blooms, and they are heat/drought tolerant, but they do not tolerate cold. They should be planted after any danger of a spring frost, and soil temps should be 55-60F.

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10y ago

Short answer: they are warm season plants.

Sunflowers (Helianthus annuus) are a summer blooming annual dicot. They need full sun, moist, well-drained soil and heavy mulch to support their tall structure and heavy blooms, and they are heat/drought tolerant, but they do not tolerate cold. They should be planted after any danger of a spring frost (soil temps should be 55-60F) and the last ones will be gone in the chilly days of autumn.

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12y ago

Spring and summer.

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Q: What season is the best season to grow sunflowers?
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