PREMIER SEEDS DIRECT Giant Sunflower - Mongolian Giant - 30 Seeds

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Also pollen-free, Bashful Sunflowers have a unique coloring of pale, pastel yellow, or salmon. The plants hit 3 feet in height, on average, and the petals themselves are about 4 inches long. Plant the inviting flowers in early spring, after the last frost has passed, in full sun. Growing giant sunflowers in pots can be a rewarding experience, offering a striking visual display. However, it can be challenging, given the size these plants can reach. These should be planted in spring soon after the frosts have passed, but because they’re fast growing, they’re one of the best choices for late plantings in mid to late spring. ProCut Peach One to two cups of TSC's Complete fertilizer per 10 row feet in the spring is adequate for the year

Take advantage of trap crops like onions and squash to draw pests away from your Mongolian Giant sunflowers. Deer may also be interested in them before they really get big, so be on the lookout for nibbled leaves and add some kind of physical barrier so they can’t munch the top of the plant right off.

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Open pollinated sunflower varieties grow true from seed. By starting with open pollinated seed you can begin the seed selection by choosing the tallest plant and the plant with the largest flower each year to save seed for growing out the following year. By selecting the plants that grow best in your climate and growing them each year you will gradually improve the height and flower size of these annual flowers. The Topolino Sunflower is both a dwarf and branching sunflower variety, producing yellow blooms on stems that reach 16 inches in height. Each plant, when healthy, produces multiple flowers, and is hardy in either flower beds or containers. The plant reaches about 2 feet in height, maximum, with medium-sized blooms. When the sunflowers are 3 inches high remove the weakest, least vigorous seedlings leaving them in the row with one sunflower every 12 inches. Then when the sunflowers are 6 inches high remove every weaker seedling so that the sunflowers are 2 feet apart from each other in every direction.

Keep in mind that when you fertilize your sunflower, you shouldn’t pour the liquid (not even the organic one) directly on the stem or right above the root of the plant. You should apply the diluted feed about eight inches around the area where the stem pokes out of the ground. 3. A full sun location for your sunflowers is non-negotiable. Grow them as a school project to teach students about gardening and flowers with a model that’s big enough to dig into and see all the details. Once the blooms are spent, cut the stalk at the bottom and repurpose it into a temporary fort or teepee. Here are the most common large cultivars to look for if you want to get tall sunflowers topped up with large blooms: 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.

Plant seeds between March and May for best results and ensure the plants are directly sown in locations with full sun. Florist Sunflowers When growing giant sunflowers plant them directly in the ground where you want them to grow. Don’t try to start them indoors . They will push their roots into the soil more than 4 feet during the growing season, so you want to give them every opportunity to expand their roots, without hinderance.

There are 70 different species of sunflowers around the world, with dozens, if not hundreds of cultivars, varieties, hybrids (i.e., types of sunflowers). They’re far from equal to each other in growing preferences, sizes, and colors, though, so you’ll want to study up on the selections before deciding to grow your own. We’ve categorized some of the most popular options to help you determine what you’re looking for. Read the minimal care instructions provided so you know what you’re getting yourself into with each. Tall, Giant, or Mammoth Sunflowers For those looking for all the sunflower glory without all the space – or those growing sunflowers in containers, dwarf varieties are the way to go. These rarely reach over 3 feet tall, and many only hit 3 feet in height. They often still grow large blooms but not so huge you can’t grow them as potted plants and window box plants (in some cases). Sunny Smile Sunflower Are you growing flowers for a cutting garden, so that you can bring beautiful bouquets into your home? Ms. MacLaughlin’s got you covered with step by step flower arranging tutorials and tips. Will you bring your heirlooms into the kitchen and use them for food? There are recipes and lists of edible heirlooms to experiment with. Germination may be slow and erratic. A fluctuating temperature of 75°F during the day and 50°F at night may help. Needs a period of pre-chilling. Mix seeds with moistened peat moss and place in plastic bag. Seal and place bag in an area where the temperature is around 60°F for 2-3 days. Then place in the refrigerator for 30-90 days. After pre-chilling, place seed on sterile seedling mix and cover lightly. Germination may take up to 30 days.

American Giant Sunflowers grow to reach about 16′ tall in good growing conditions. The flower head at the top can reach 12″ across. This variety takes about 80 days (2.6 months) to reach maturity after planting. 5. Titan sunflower This sunflower is slightly shorter than some of the other giant varieties, but it can still grow up to 6-8 feet tall, so it’s not exactly small, either! 10. Skyscraper Sunflower Growing Heirloom Flowers is the ideal book for heirloom seed enthusiasts, intermediate and experienced gardeners, and market growers. Those who have been fighting the elements to grow their own vegetables for many years will find fresh inspiration and relief in this book. There is more to gardening than food. A beautiful garden, full of heirloom flowers in bloom is a sanctuary. It also offers food for pollinators, attracts beneficial predatory insects, and fills the neighborhood with beauty — and you get might even get more vegetables. These Giant Sunflower Varieties can grow to an impressive height of 12 to 16 feet. The blooms are large, often up to 14 inches in diameter. 13. Titan Sunflower Each sunflower will need plenty of room to get as big as possible, so make sure you choose a spot that can accommodate them. They do best with around 1 to 2 feet between each flower.