18 Best Mammoth Sunflower of 2022 – Romance University
After hours researching and comparing all models on the market, Romance University finds out Top 18 Best Mammoth Sunflower of 2022. Check our ranking below.
2,073 Reviews Scanned
Rank No. #1
Sow Right Seeds - Mammoth Sunflower Seeds to Plant - Grow Giant Sunflowers in Your Garden - Non-GMO Heirloom Seeds for Planting an Outdoor Garden - Bright Yellow Blooms - Attract Bees and Birds (1)
- Beautiful - Mammoth Sunflower (Helianthus var. 'Mammoth') seeds. These seeds grow crazy tall huge beautiful sunflowers with heights of 8-12 ft. The seeds are open pollinated and can be saved to plant year after year. Harvest and roast your own sunflower seeds. Minimum of 8g per packet (approximately 70 to 80 seeds).
- Productive - Mammoth Sunflower germinates in 7-14 days when soil temps are 70-75°F. Plant 1” deep and space 3’ apart in an area with full sunlight. This variety will grow 8-12’ tall with a spread of 2-3’. Flowers will mature in 80-90 days, plant in USDA zones 3-9.
- Pollinator and Bird Friendly - Bees love the nectar in sunflowers and will travel around helping pollinate your garden. Towards the end of the season, birds also love to come and eat the dried seeds.
- Easy to Grow - Instructions included on each packet. Plus, we are available to answer all your questions. If these seeds don’t germinate, we will happily make it right for you.
- Safe and Sustainable - Our operation is fully solar powered, and Sow Right Seeds has taken the Safe Seed Pledge to sell only fresh Non-GMO heirloom seeds for you and your family.
SaleRank No. #2
HOME GROWN 𝗨𝗦𝗔 Sunflower Seeds to Plant | 520+ Giant Mammoth Sunflower Seeds for Planting Bulk Packet | Heirloom, High Germination, Easy to Grow Jumbo Sun Flower for Home Garden(Helianthus annuus)
- GROW GIANT MAMMOTH SUNFLOWERS UP TO 12 FEET TALL. These mammoth sunflower seeds are known for producing impressively tall plants with huge, golden-yellow blooms and dark centers. Reaching heights of up to 12 feet with flower heads as wide as 14 inches, they make a striking visual statement in any garden. Ideal for borders, backyards, or along fences, these sunflowers attract attention while offering natural beauty and pollinator support.
- 520 PREMIUM HEIRLOOM SEEDS FOR HIGH-VOLUME PLANTING. This mega pack includes approximately 520 non-GMO, heirloom seeds, giving you the freedom to grow a large sunflower patch or multiple seasonal plantings. Whether you're cultivating for ornamental use, seed harvest, or wildlife feeding, the generous seed count ensures abundant growth. Each seed is open-pollinated and packaged for freshness, ideal for both home gardeners and large-scale hobby growers.
- EASY TO GROW IN VARIOUS CLIMATES AND SOILS. Mammoth sunflowers are beginner-friendly and adaptable to a range of soil types and weather conditions. Simply plant in full sun and water regularly—no complicated maintenance required. Their hardy nature allows them to flourish in garden beds, field rows, or decorative planters. Perfect for school gardens, family projects, or anyone looking to enjoy a rewarding and low-effort growing experience.
- ATTRACTS BEES, BIRDS, AND BENEFICIAL INSECTS. These vibrant sunflowers are more than just beautiful—they’re beneficial to your local ecosystem. Their large blooms naturally attract bees and butterflies, supporting pollination in your garden. After blooming, the mature seed heads provide a healthy food source for birds such as finches and chickadees. Enhance your garden’s biodiversity while enjoying stunning floral displays.
- USA PACKAGED WITH PRIDE AND QUALITY TESTED. Grown, harvested, and packed in the USA, every seed is quality tested to ensure high germination rates. The packaging includes clear planting instructions, making it easy to achieve successful results whether sowing in spring or late summer. This seed pack is a reliable choice for gardeners who value American-grown products and consistent performance.
Rank No. #3
Mammoth Grey Stripe Sunflower Seeds for Planting – Extra Large Packet – Over 250 Open Pollinated Non-GMO Seeds – Helianthus annus
- EXTRA LARGE PACKET contains over 1 full ounce of pure live seeds (250+ seeds!) - Enough to cover 100 square feet.
- THE FRESHEST SEEDS available lead to high germination rates, making your gardening easy, successful, and fun!
- PREMIUM PACKAGING designed for optimal seed storage, with full planting instructions and reusable zipper - Great for gift giving!
- GUARANTEED TO GROW! – We want everyone to be a successful gardener, and we’re always here with personal gardening advice. If you have any issue with our seeds, we’ll refund or replace them no questions asked!
- ABSOLUTE GIANT of all sunflowers produces huge blooms on stalks over 10 feet tall! The seeds can be left on the plant for the wildlife, or collected to be roasted and eaten!
Rank No. #4
Mammoth Sunflower Seeds for Planting - Grow Giant Sun Flowers in Your Garden - 50 Non GMO Heirloom Seeds - Full Planting Instructions for Easy Grow - Great Gardening Gifts (1 Packet)
- Sunflower Seeds for Planting – This planting packet includes 50 Mammoth Grey Stripe sunflower seeds (Helianthus annuus). Mammoth grey stripe sunflowers are some of the tallest sunflowers in the world. These flowers grow 9-12 feet tall with sun bursting yellow flower petals.
- Non-GMO Heirloom Sunflower Seeds – All of Axel’s Garden Seeds are Heirloom & Non-GMO and are intended for the current and following growing seasons. Fresh garden seeds are always provided.
- Planting Packets with Instructions – Our colorful planting packets include all the necessary information to grow these flowers successfully. Each packet is 3 x 4.5 with a beautiful full color illustration on the front with growing instructions on the back.
- Easy to Grow – Plant these seeds ½ inch deep in well-drained soil. Wait just 90-110 days for matured Mammoth Grey Stripe sunflowers. If any problems occur, Axel’s Garden Seeds will provide whatever is necessary for your gardening needs.
- Variety of Seeds for Home Garden – Axel’s Garden Seeds offers unique fruit, flower, herb, and vegetable seeds. Each packet is hand packed with high-quality garden seeds.
Rank No. #5
The Mammoth Sunflower
- Jensen, Benjamin (Author)
- English (Publication Language)
- 52 Pages - 07/10/2025 (Publication Date) - September Sunflowers (Publisher)
Rank No. #6
TKE Farms & Gardens - Mammoth Sunflower Seeds for Planting, 100+ Non-GMO Heirloom Seeds, Grow Towering Sunflowers with Giant Yellow Blooms, Includes Easy Instructions for a Stunning Outdoor Garden
- WHY CHOOSE OUR MAMMOTH SUNFLOWER SEEDS? Add towering beauty to your garden with our premium Mammoth Sunflower Seeds. These heirloom seeds produce giant yellow blooms, perfect for garden borders, privacy screens, and attracting beneficial pollinators.
- HIGH GERMINATION RATE: Our carefully selected Mammoth Sunflower Seeds ensure a high germination rate, giving your garden a strong start. Expect robust, towering sunflowers up to 12 feet tall with massive blooms that brighten your landscape and delight pollinators.
- EASY TO GROW - INSTRUCTIONS INCLUDED: Whether you're a novice or expert gardener, growing Mammoth Sunflowers is simple with our detailed instructions. Follow easy step-by-step guidance to cultivate healthy plants that bring vibrant beauty to your outdoor space.
- GARDEN BEAUTY & POLLINATOR MAGNET: These stunning sunflowers enhance your garden while attracting bees, butterflies, and birds. Their large flower heads not only provide visual appeal but also offer a natural feast of nutritious seeds for backyard wildlife.
- OPTIMAL GROWING CONDITIONS: Thriving in full sunlight and well-drained soil, Mammoth Sunflowers require regular watering and support for their tall stalks. Suitable for USDA zones 3-9, they bloom in 75-90 days, creating a spectacular seasonal display.
Rank No. #7
Black Mammoth Sunflower - Large 1 Ounce Packet - 250 Flower Seeds for Planting - Helianthus annuus
- LARGE 1 OUNCE PACKET: Embark on a wildflower journey with our generous 1 ounce packet, bursting with over 250 pure live seeds! Transform 500 square feet into a vibrant haven for nature.
- BLACK MAMMOTH SUNFLOWER: Black Mammoth Sunflower stands tall with giant blooms and edible seeds, creating a striking, bold presence in any garden. Ideal for borders or naturalized areas, this sunflower attracts birds and adds a towering, cheerful element, making it a stunning focal point in sunny garden spots.
- VIBRANT BLOOMS AWAIT: Bring your garden to life with Family Sown’s premium flower seeds, ensuring high germination rates and stunning, colorful displays. Let every seed grow into a masterpiece of nature.
- GIFTABLE PACKAGING: Share the love of gardening with Family Sown's beautifully designed seed packaging. Crafted for freshness and ease, each pack includes simple planting instructions and a reusable zipper — an ideal gift for any nature-loving friend or family member.
- PLANT WITH CONFIDENCE: At Family Sown, we treat every garden like it's our own. If our seeds don't grow, let us know — we’ll refund your purchase within 30 days, no questions asked. From our family to yours, we’re here to help your garden flourish!
Rank No. #8
Sereniseed Certified Organic Mammoth Grey Stripe Sunflower Seeds (2-Pack) – 100% Non GMO, Open Pollinated – Guide for Indoor & Outdoor Garden Planting
- USDA Certified Organic by Oregon Tilth
- 100 seeds total (50 per pack) Mammoth Grey Striped Sunflower (Helianthus annuus) seeds packed fresh for the current and following year
- 100% non-GMO & open pollinated
- Easy grow guide included, with tips printed on the back of the packet
- We pledge to not knowingly buy or sell genetically engineered seeds
Rank No. #9
Burpee Mammoth Russian Sunflower Seeds 200 seeds
- Huge heads are ideal for competition at fairs
- Each packet contains 200 seeds
- Sow outdoors 4 weeks after the average last frost date and have blooms in 85 days
- Plant Height is 108". plant spread is 36". blooms are 12"
- Annual for all growing zones from 1-11. Sunlight exposure = full-sun
Rank No. #10
Seed Needs Sunflower Seeds to Plant Mammoth Grey Stripe | 1.5 Ounce Large Resealable Pouch Heirloom Seeds Helianthus Annuus Non GMO | Bulk Tall Growing Sun Flowers
- Sunflower Seeds: Grow Mammoth Sunflowers from seed in your outdoor garden. Can be planted to produce tall plants with large heads, that are packed with rows and rows of sunflower seeds to roast as a snack.
- Sunflower Seeds for Birds: Not only is this variety great for snacking, but the birds love them too. Grow a sunflower field with plenty of sunflower seeds to feed birds as well!
- Mammoth Size: These sunflowers grow to a height that towers at least 7 feet tall! The large yellow petaled blooms open up and follow the sun all day long.
- Butterfly Garden: Butterflies, Bumblebees, Honeybees and other beneficial insects cling to these massive sun flowers all Summer long. They love the nectar rich blooms.
- Quality: All Mammoth Sunflower seeds packaged by Seed Needs are intended for the current and the following growing seasons. All seeds are stored in a temperature controlled facility that is free of significant amounts of moisture.
Rank No. #11
Seedboy Organic Giant Mammoth Grey Sunflower Seeds for Planting Indoor and Outdoor, Non-GMO and USDA Certified Flower Seed Packet for Hydroponic Garden Indoor or Planting Outdoor (Giant Sunflower)
- Non-GMO & Organic Certified Seeds – Enjoy peace of mind with Giant Mammoth Grey Striped Sunflower seeds that are USDA Certified Organic by OTCO and non-GMO. Proudly grown in the USA, these seeds bring healthy, natural goodness straight to your garden.
- Our Germination Promise – Worried about your seeds not sprouting? No problem. If your seeds don’t germinate, simply reach out, and we’ll send a replacement—your gardening success is our priority.
- Generous Seed Count – Each packet contains 75 premium sunflower seeds to ensure a bountiful harvest. Perfect for a greenhouse or outdoor gardening, these seeds are ideal for sunny spots, large containers or garden rows.
- Towering Beauty & Nutritious Harvest – Grow stunning Giant Sunflowers that reach up to 12 feet tall. These sunflowers not only add a dramatic touch to your garden but also provide a delicious, nutrient-rich snack. Harvest the seeds for roasting, enjoy them as a protein-packed treat, or leave them to attract birds and pollinators. A classic favorite for gardeners of all levels!
- Easy to Grow with Support – Designed for beginners and seasoned gardeners alike, our detailed instructions and access to downloadable grow guides make planting and caring for your sunflowers simple and rewarding.
Rank No. #12
SkyScraper Sunflower Seeds for Planting | 20 Seeds | Rare, Exotic Garden Seeds | Huge 15-20 feet tall with Giant Sunflowers
- TALLEST SUNFLOWERS: 20 Seeds of the Skyscraper Sunflower
- EASY TO GROW: Full sun and water make 15-20 feet tall and giant 18 inch flower.
- GOOD FOR ENVIORNMENT: Great for Bees and Butterflies
- EYE APPEALING: People give these exotic plants a second look. 20 Rare Garden Flower Seeds
Rank No. #13
Russian Mammoth Sunflower Seeds,25 Count COOL BEANS N SPROUTS Brand. Non-GMO. Home Gardening.
- Cool Beans n Sprouts Brand
- Main picture does not indicate the amount being sent. You will receive the quantity of seed you purchased from the title listing.
- All seeds are grown and packaged to order in the U.S.A.
- Thank you for your order from a small, family-run business!
Rank No. #14
Non GMO Bulk Mammoth Grey Stripe Sunflower Seeds- Helianthus annuus (1 Lb)
- Non-GMO Bulk Mammoth Grey Stripe Sunflowers Seeds (Helianthus annuus)
- Fortified with Mycorrhizae, Beneficial Bacteria & Trichoderma for Easy, Superior, Natural Growing!
- Non GMO, Heirloom, Open Pollinated. 96-144" tall (8-12 feet) Beautiful as cut flowers
- Attracts butterflies and hummingbirds. 100% Annual Species; 100% Pure Seed, No Fillers
- Scientific Name: Helianthus annuus
Rank No. #15
Sow Right Seeds - Mammoth Sunflower Seeds to Plant - 740 Seeds 2 Ounces - Grow Giant Sunflowers - Non-GMO Heirloom Bulk Jumbo Pack for Planting an Outdoor Garden - Abundant Harvest for Pollinators
- Grow All You Want - Extra large bulk packet of Mammoth Sunflower (Helianthus var. 'Mammoth') seeds. These seeds grow crazy tall huge beautiful sunflowers with heights of 8-12 ft. The seeds are open pollinated and can be saved to plant year after year. Harvest and roast your own sunflower seeds. Minimum of 2oz per packet (approximately 740 seeds).
- Productive - Mammoth Sunflower germinates in 7-14 days when soil temps are 70-75°F. Plant 1” deep and space 3’ apart in an area with full sunlight. This variety will grow 8-12’ tall with a spread of 2-3’. Flowers will mature in 80-90 days, plant in USDA zones 3-9.
- Pollinator and Bird Friendly - Bees love the nectar in sunflowers and will travel around helping pollinate your garden. Towards the end of the season, birds also love to come and eat the dried seeds. This super pack will provide you with enough seed to grow all season. You could also plant a large food plot for the community or to take to market.
- Easy to Grow - Instructions included on each packet. Plus, we are available to answer all your questions. If these seeds don’t germinate, we will happily make it right for you.
- Safe and Sustainable - Our operation is fully solar powered, and Sow Right Seeds has taken the Safe Seed Pledge to sell only fresh Non-GMO heirloom seeds for you and your family.
SaleRank No. #16
Groundio Sunflower Seeds to Plant, 1 OZ, Grow Giant Mammoth Sunflower in Your Garden, 300+ High Germination Sunflower Seed, Grown in The USA
- Groundio Sunflower Seeds: This 1 oz pack (300+ seeds) of Mammoth Sunflower seeds grows "botanical giants" with an average height of 6-12 feet, featuring 12-14 inch diameter flower heads that shine like golden suns. Ideal for wedding backdrops, photography studios, or children's nature education, these sunflower fields create stunning visual experiences
- Cold & Drought Resistant: Mammoth Sunflowers offer superior adaptability, suitable for planting from late spring to early summer (soil temperature 18-25℃). They thrive in extreme climates across USDA zones 2-11. No presoaking needed – directly plant 2-3 seeds per hole 12-18 feet apart in loose soil. It can emerge in 10-15 days, whether it is garden planting, balcony potted or large-scale landscape projects, this seed can save you time and effort, and easily harvest a sea of flowers
- High Germination Rate: Desire eye-catching giant sunflowers in your yard? Groundio's giants sunflower seeds are your perfect choice! Professionally selected and tested, these seeds ensure 95%+ germination rate, blooming in just 80-90 days from planting for quick harvest enjoyment
- Ornamental & Edible: More than just beautiful, these sunflowers are a premium source of healthy ingredients! Mature flower heads yield plump edible sunflower seeds, ideal for roasting or pressing into flavorful oil. Stems serve as compost material, while spent flower heads become natural winter bird feeders
- Premium Seeds and Packaging: Groundio guarantees top-quality seeds and service. Each pack uses reusable moisture-proof aluminum foil packaging, with a detailed planting guide on the back covering sowing time, spacing, fertilization tips, and other information
SaleRank No. #17
1000+ Sunflower Seeds for Planting Heirloom Non-GMO, Bulk Package of 15 Varieties Mix Seeds, Individually Packaged, Attracts Pollinators (Helianthus annuus)
- 15 Packets of heirloom sunflowers seeds: 1000+ pcs, There are red, purple, pink, and yellow
- Packaging: 15 individual packets, Quality Sunflower seeds (Helianthus annuus) packaged; Intended for the current and the following growing season. grow a beautiful flower garden
- Planting method: Soaking seeds in cool water for 24 hours prior to planting will help speed up germination
- Easy To Grow: Sunflowers are some of the easiest to grow flowers. They don't need a lot of water but love the sunshine. Our variety pack is to give you sunflowers from 18" tall all the way up to 7 feet tall
- Annual: Grown as an annual flowering plant, Sunflowers will grow quickly, bloom profusely and later die with the first killing frost
Rank No. #18
Mammoth Grey Stripe Sunflower Seeds- Helianthus annuus - Pack of 500 Seeds by Seeds2Go
- These gigantic flowers can be up to 10 inches across and have bright yellow, feathery petals with a brown center. Flowers are attractive to honey bees, wild bees and other pollinators.
- Grey Stripe Sunflowers are the tallest sunflowers of all varieties, steps up to 8 -12 feet tall
- Large Pack of premium Open-Pollinated, Non-GMO, USA Grown seeds
- Adapted to a wide range of soil types but prefers well drained soil with a ph of 6.5 - 7.5
- Low maintenance and fast growing, exellent choice for the back of perennial borders
How Do You Buy The Best Mammoth Sunflower?
Do you get stressed out thinking about shopping for a great Mammoth Sunflower? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Mammoth Sunflower, which is why we have assembled a comprehensive list of the greatest Mammoth Sunflower available in the current market. We’ve also come up with a list of questions that you probably have yourself.
Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Mammoth Sunflower that you consider buying. Your questions might include the following:
- Is it worth buying an Mammoth Sunflower?
- What benefits are there with buying an Mammoth Sunflower?
- What factors deserve consideration when shopping for an effective Mammoth Sunflower?
- Why is it crucial to invest in any Mammoth Sunflower, much less the best one?
- Which Mammoth Sunflower are good in the current market?
- Where can you find information like this about Mammoth Sunflower?
We’re convinced that you likely have far more questions than just these regarding Mammoth Sunflower, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.
Potential sources can include buying guides for Mammoth Sunflower, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Mammoth Sunflower. Make sure that you are only using trustworthy and credible websites and sources.
Romance University provides an Mammoth Sunflower buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Mammoth Sunflower currently available on the market.
This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:
- Brand Value: Every brand of Mammoth Sunflower has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
- Features: What bells and whistles matter for an Mammoth Sunflower?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your Mammoth Sunflower.
- Customer Ratings: Number ratings grade Mammoth Sunflower objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Mammoth Sunflower.
- Product Quality: You don’t always get what you pay for with an Mammoth Sunflower, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an Mammoth Sunflower is should be an indication of how long it will work out for you.
Romance University always remembers that maintaining Mammoth Sunflower information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.
If you think that anything we present here regarding Mammoth Sunflower is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.