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The Best Mammoth Sunflower of 2023 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Mammoth Sunflower of 2023. Check our ranking below.
2,279 Reviews Scanned
- 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.
- 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.
- 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.
- 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.
- 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!
Last update on 2025-07-15 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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.
We’ve 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.
We provide 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.
We always remember 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.
FAQ:
Q: How many seeds can a mammoth sunflower produce?
A: Helianthus encompasses about 70 to 80 members, including a few perennials such as Jerusalem artichoke (H. tuberosus) and beach sunflower (H. debilis). The gigantic “Russian Mammoth” sunflower produces blooms up to 14 inches across with as many as 1,000 to 1,500 seeds.
Q: Are sunflowers hard to grow?
A: While sunflowers are easy to grow, many people complain “I can’t grow them”, and typically describe one or more of the following problems: Seedlings are cut or chewed off shortly after germination. Mature plants are small and poor. The season is too short for seed production.
Q: Where is the best place to plant sunflowers?
A: As the name implies, sunflowers need a space in the garden that receives full sun nearly all day long. It’s best to plant your sunflowers either on the north side of your garden or in a spot on their own, so they won’t shade out the other plants in your yard as the leggy stalks grow.
Q: When to plant and harvest sunflowers?
A: Plant seeds 2.5 to 5 cm (1 to 2 inches) deep in loose soil from mid-April until mid-July depending on the variety. Sunflowers reach maturity, the time from germination to when seeds are ready to harvest, in 70 to 90 days.