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Get it between 2024-12-11 to 2024-12-18. Additional 3 business days for provincial shipping.
Hardiness zone.4-9
Grow.Generally, sunflower seeds are sown 1-inch deep, spacing the seeds 6 to 36-inches apart, depending on the variety.You can also sow several seeds close together and remove the weaker ones after a few weeks.
Great.Mammoth sunflowers produce a wealth of high-quality sunflower seeds and oil.
Tip.To prevent your sunflower from keeling over, a tree stake may be used to help support your tall Mammoth sunflower.
Self-seeding.Grow from seed and enjoy growing with your family
The Mammoth sunflower is a brilliant and cheery plant that towers over most other sunflower types. This impressive plant is not only one of the tallest sunflower varieties, but also has a long list of reasons why it makes a great addition to any garden! Each plant produces one stalk that averages between 9 to 12 feet tall. A bright yellow flower head with a dark brown center sits atop the strong stalk and can easily grow up to 12 inches across! Plump white seeds with black and grey stripes are found in the head of the sunflower. Be wary of the height of your plant – although the stalks are generally sturdy, Mammoth sunflowers that are “too tall” can hold an excess of weight at the head, making these flowers subjected to being toppled over by weight or strong winds! To use a stake to support your plant, use twine a few times along the stalk to gently tie your young plant to the stake. Emphasis on “gentle” – twine that is too tight can choke your plant and harm its growth!