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PREMIER SEEDS DIRECT Giant Sunflower - Mongolian Giant - 30 Seeds

£9.9£99Clearance
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As the petals fall off, the center florets dry up and the seed kernels begin to swell in the disks, carefully climb a stepladder and cover your flower head with a mesh onion bag or loose burlap or paper bag. This keeps marauding birds from robbing your seeds so that the heads look perfect and complete when you are ready to show them off to friends or proudly display them on their long stalks at your local county fair. Cut the stalks at the base when the ripened seeds develop a hard shell. If you plan to eat your sunflower seeds or preserve them for your bird feeder, wait until the seeds are completely dry; then remove them by hand or by rubbing them over wire mesh into a basket. Store in tightly closed containers to keep rodents away. Often the sunflower heads on mammoth sunflowers are absolutely huge, and the heavy heads bend with the weight. Just because they are bending however, does not mean that they are mature. lay seeds out in a single layer to allow to dry completely before storing mammoth grey striped sunflower seeds Conclusion When harvesting sunflower seeds, it’s important to make sure that the seeds are left to mature on the plant before harvesting. However from my experience, if you are harvesting from mature mammoth sunflower seed heads, there should be lots of healthy seeds to collect.

Velvet Queen (1.5m): One of the best multi-branching sunflowers in my opinion. The darkest sunflower with freely flowering, branching plants with deep velvety crimson flowers with an even darker centre. Widely available. 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).

Mammoth sunflowers have massive growth, and need a lot of fertility to reach the maximum potential growth of the plant. Watch your sunflowers bloom in late summer and take note of the many beneficial pollinators and other creatures that visit them. Bees, butterflies, and more wildlife are attracted to the bright yellow petals and brown centers full of pollen. Seeds can be harvested at any time, although often easier to harvest after the flower head is dried for several days.

Mary Jane Duford is a passionate gardener and well-acclaimed authority in the world of horticulture. As a certified Master Gardener and Permaculture Garden Designer with over a decade of hands-on experience, she has honed her skills to cultivate a deeper understanding of the natural world around us. Beyond her gardening prowess, Mary Jane holds a distinct edge as a Professional Engineer, an expertise that often intertwines with her gardening methodologies, bringing a unique perspective to her readers. And while I leave a lot of other seed-producing plants in the garden to feed the local bird population, I readily admit that I’m not as generous with my sunflower seeds. 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 I thought that planting the seeds in June, after our last frost date, would be much too late, so I started my sunflowers earlier indoors in cell trays. mammoth sunflowers have long tap roots which help to hold them in place Different Varieties Of Mammoth Sunflowers

Frequently asked question about growing sunflowers

Since these are annual flowers, the most important consideration for each growing zone is frost free days. Ring of Fire (1.2m): Heavily branching, bicoloured blooms, with petals dark red at their base surrounded by golden-yellow flames. Widely available. Blooming close to the sun… Feed often and water regularly. While the plant is small, water around the root zone, about 3-4 in. from the plant with about 2 gallons of properly diluted liquid fertilizer solution per week. For larger plants, scrape out a small doughnut-shaped moat about 18 inches around the plant and about four inches deep. Pour several gallons of properly diluted fertilizer into the moat every week. Sunflower roots can grow to 4 feet below the soil surface. Avoid pouring fertilizer directly on the stems, since this can cause them to rot. The American Giant Sunflower is a modern hybrid sunflower variety with an extra-sturdy stalk. These tall plants grow a single heavy sunflower head at the top, yet rarely need staking. They are also very easy to grow.

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 hungry plants, and the giant hybrids will take even more nutrients out of the ground.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. 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. This common sunflower has been hybridized over time to include a wide range of varieties. These range from dwarf varieties such as Dwarf Sunspot, to giant varieties, such as the Russian Mammoth.

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