Mammoth sunflowers are easy to grow. Learn how to grow mammoth sunflowers, and get your giant sunflowers off to a great start.

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If you are planting mammoth sunflower seeds for the first time, it’s important to use the right planting techniques for best blooming and height.

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Mammoth sunflowers are most often grown for their impressive size, and their seed, which can be enjoyed by people, as well as wildlife and birds.

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Seeds of the mammoth sunflower varieties are large, and depending on the variety, the seeds can measure from 1/2 to 1 inch in length.

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Sunflowers have long tap roots, which reach deep down into the soil, and help to secure the tall sunflowers in place, along with the thick stems.

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There are different varieties of mammoth sunflowers available, including Russian Giant, Russian Mammoth, and Mammoth Grey Striped, to name a few.

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To plant mammoth sunflowers, you will have best results direct sowing the seeds into the garden.

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Plant the seeds when the risk of frost has passed, into a prepared garden bed 6 inches apart, approximately 1/2 inch deep, and cover with soil.

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After the sunflowers have sprouted, thin the plants to the ideal spacing of 18 inches to 24 inches apart.

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With proper planting and care, most mammoth sunflowers will bloom at about 90 days from germination.

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At the end of the growing season, you will be able to harvest your mammoth sunflower seed heads for seed collection.

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With large flower heads and tall stature, mammoth sunflowers always make an impression.

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For more information, see the tutorial!