Growing up to two feet in height, Big Smile Sunflowers have yellow flowers with golden centers. The flowers are delicate and as wide as three to six inches across. Plant them in prepared seed beds after all dangers of frost have passed. Ashy Sunflower ( Helianthus mollis)

Last year I posted pictures of a Mongolian Giant Sunflower that was bigger than a basketball. Now I would like to share a photo that shows how tall these sunflowers get. I know, I know!We hear this all the time in gardening. But soil is key. Sunflowers are hungry plants, needing a lot of nutrients to grow those big flowers and thousands of seeds.Amaryllis Bulbs, Hosta Roots, Lily Bulbs, Papaver Roots, Paperwhite Bulbs, Peony Roots & Siberian Iris Roots

Junior Sunflowers are another miniature hybrid that doesn’t produce pollen. They reach up to two feet in height, with flowers up to five inches wide, making them on the larger side of dwarves. Sow them several weeks after the last frost has passed, in a spot with loads of direct light to enjoy their bright yellow blooms. Dwarf Incredible Other sources of vegetable oils such as soy and palm oils may fill some of the gap left by reduced exports from Ukraine and Russia but there are significant issues with the sustainable production of soy and oil palm from land converted from tropical forests. Plant them in a location where they will receive full sun. They need rich, moderately moist soil, in the springtime shortly after the last frost. American Giant Sunflower The Kong Sunflower is a newer variety that’s perfect for the perimeter of the garden or along a fence line. This hybrid variety is easy to grow and is a great choice for new gardeners. Rather than producing only one flower at the top of the stalk, this variety grows branches, blooming up along the sides of the main stalk (which is covered in green foliage).The Titan Sunflower is an heirloom tall sunflower variety that remains one of the tallest sunflowers available. Selected from the Mammoth Sunflower (described above), the Titan is well-suited to home gardens as it has a sturdy root system and rarely needs staking.

Growing the tallest sunflower plants starts with choosing a variety that has tall genetics. For extra-tall plants, you’ll need seeds that want to grow tall and then growing conditions that allow them to. Here are some popular tall sunflower varieties: 1. Mammoth sunflower Mongolian Giant sunflower seeds can be direct sown or started in seed trays inside. Ideal soil temperatures are between 70 and 80 degrees F for seeds to germinate. It’s a good idea to fertilize your soil for adequate nutrients. Sunflowers are heat loving plants, and do not tolerate cold and freezing temperatures. They are not frost hardy. Another towering sunflower variety, the Mongolian Giant also lives up to its name and reputation. The huge plant grows as tall as 14 feet, producing a single flower per plant. The massive flower is between 14 and 18 inches across and typically takes about 90 days to bloom. The flowers last four to six weeks before losing their petals. Their huge seed heads attract birds and animals. Humans also enjoy their seeds. If you’re curious about it too, just know that the record for the tallest sunflower (measuring 30 feet and 1 inch, which translates to 9.17 meters) is held by German gardener Hans-Peter Schiffer.Once in full bloom, it’s seed making time, and the flower head continues to grow and develop, and form seeds. Sunflowers are heavy feeders in general, and the larger they are, the more nutrients they will require for growth. Sunflowers are not all about size: go for the best multi-branching plants that will give you a display of many blooms until the first frosts. Yep! You’ve made it to the end of the season and managed to grow giant sunflowers. Good job, but don’t rest on your laurels just yet! Now’s the best time to set yourself up for success for next year. Sunflowers are pretty big compared to most flowers, but there’s one behemoth relative of the sunflowers we all know and love.

Note: For those varieties that indicate a (1) or (6), a very light covering of vermiculite will allow adequate light to the seed and keep it uniformly moist.They can reach heights of 14 feet, but it’s the blooms that are the most impressive. These sunflower heads can get as big as 18 inches across, with the characteristic bright and sunny yellow petals of their cousins. Plant the seeds of Dwarf Incredibles about 3 weeks before the last frost of the year for outdoor growing and any time for indoor (again, this is still best done in spring for a more natural life cycle for the plants). Suntastic Yellow Even among these, there are many, many varieties and a huge range of heights and sizes, colors and forms available. Skyscraper Sunflower Every summer new photos appear of gardeners standing next to massive sunflowers in their gardens, reaching heights of 10 or 12 feet or more. Or massive flower heads measuring a few feet in diameter. Adding a few inches of compost to the garden bed will do wonders for the growth of these hungry plants.