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

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.

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.

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.

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.

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

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

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.

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

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

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

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

For more information, see the tutorial!