PREMIER SEEDS DIRECT Giant Sunflower - Mongolian Giant - 30 Seeds

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Zones with a short growing season may not have enough time to grow the mammoth varieties to maturity. Sonja (1.1m): Small plants are well filled with side branches and produce strong-stemmed dark-centred blooms in unusual tangerine-gold-orange. Widely available. Shades of red Delving deep into specific fields of study within horticulture, Mary Jane has an extensive knowledge base on sustainable gardening practices (including permaculture), soil science, and selecting cultivars well-suited to home gardeners. Her passion isn't just limited to plants; she's a staunch advocate for holistic, eco-friendly gardening techniques that benefit both flora and fauna. Sunflowers are spectacular, highly productive and a major agricultural export of Ukraine. They are also the national flower of Ukraine and are a powerful symbol of the resistance of the Ukrainian people to the invasion by Russia. Russia and Ukraine between them produce 60 per cent of the world’s sunflower oil. One to two cups of TSC's Complete fertilizer per 10 row feet in the spring is adequate for the year

I also found tips specifically for encouraging extraordinary growth saying to dig shallow trenches in circles around the plant—about 12 to 18-inches out, and add liquid fertilizer there, to reach more of the roots. The main attraction point of a tall sunflower – the majestic flower head – may also result in its downfall, quite literally. Another beautiful favorite among florists for its vibrant coloring, the Choco Sun variety has vivid yellow petals and a chocolate brown center. After only 11 weeks, the plant reaches full maturity and produces vibrant flowers. They’re shorter, too, growing only 10 to 12 inches in height. The common sunflower is an annual sunflower, which grows from seed to bloom within the same season.It’s easy to over-do fertilizer, hurting both the plant and the soil so follow the instructions on any product you use. More is not more with plants: they can only absorb what they need when they need it under the right conditions and surplus can harm the environment. 11 Water Sunflowers can be direct-seeded or transplanted. Direct-seeding can be easily done with a walk-behind planter like our Hoss Garden Seeder. We recommend using a #3 seed plate and modifying the hole size to fit the variety being planted. Sunflower seed size can vary greatly from one variety to the next, therefore it’s important to always calibrate the seed plate hole size for the variety being planted. Sunflowers grow well when planted on double rows with drip irrigation. Lay one row of drip tape and plant on both sides of the tape to maximize garden space. I mentioned that sunflowers do not like to dry out—or get waterlogged—and that means keeping the water nice and even, right through the growing season. Titan Sunflowers grow to reach about 14 feet tall in good growing conditions. The flower at the top of the main stalk is often about 12″ wide but can reach up to 24″ across. This variety of sunflowers takes quite a while to reach their gigantic height, usually taking about 110 days (3.6 months) to reach maturity after planting. 6. Pike’s Peak sunflower Germination may be slow and erratic. A fluctuating temperature of 75°F during the day and 50°F at night may help.

In addition to the native sunflowers that reseed themselves every year I think I’ll plant a few Mongolian Giants each summer. If you’ve got a favorite sunflower variety, either ornamental or edible, please leave a comment. Plant these beauties after all danger of frost has passed, in open, exposed ground. When the plants hit about four inches in height, thin them out. Provide them with lots of water. Russian MammothThey 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. Sunflowers in general have deep tap roots and take a lot of nutrients from the soil. Repeated sunflower plantings will deplete the soil, unless amended and the nutrients are replaced. Mammoth sunflowers have massive growth, and need a lot of fertility to reach the maximum potential growth of the plant. Paul Bunyan’ sunflower– much like its folk hero namesake, this sunflower will grow into a giant, towering at 16 to 18 feet tall. The deep yellow flowers can reach up to 23 inches across. I like to brush off all of the center disc florets from the face of the flowerhead right there in the garden. This can be a messy business, and it’s great to leave the mess in the garden.

Once you’ve sown your sunflower seeds, you can cover the area with white garden netting (white is better as it lets more light in), a low tunnel or, in a pinch, a plastic bottle cut in half and placed above every individual seed as a dome. Once the seeds have germinated, you can remove the netting. 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 The Mongolian Giant Sunflower is a classic tall sunflower variety that produces a single giant sunflower head. These sunflowers are easy to grow (and they grow fast!). The flowers attract beneficial pollinators and the seeds are excellent for eating fresh or roasted.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. This closer planting space makes up for any seeds that do not germinate, as well as any seeds stolen by wildlife, ensuring that there will not be big gaps between the final sunflowers left in place. 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. A nodding seed head is sometimes a sign of maturity, however with the mammoth sunflowers this is not always the case. If you get uninvited deer guests to your garden, you should know that they might be attracted by the crunchy seed heads before they ripen and dry. In this case, you should plant your sunflowers in a fenced-in spot. 8. Stake your sunflowers early in the season.