{"id":10098437896,"title":"Sunflower Seeds - Mammoth","handle":"sunflower-mammoth-flower-seed","description":"\u003cp\u003e90 - 110 days. Mammoth sunflower seeds grow one of the tallest, brightest, and most breathtaking flowers in the world! Mammoth sunflower seeds grow an unbelievable 9 – 12' tall and world famous for their stunning 12” blooms. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America and mature in as quickly as 80 days. Mammoth sunflower seeds are an ideal grow for bird enthusiasts because the countless seeds per head will keep birds well-fed and coming back for more all season long.\u003c\/p\u003e\n\u003c!--split--\u003e\n\u003ch2\u003eGrowing Mammoth Sunflower Garden Seeds\u003c\/h2\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaxonomy:\u003c\/strong\u003e\u003cem\u003e Helianthus annuus \u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeed Type:\u003c\/strong\u003e Annual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSow Indoors or Outdoors:\u003c\/strong\u003e Mammoth sunflower seeds are recommended solely for outdoor growth because of their 9 – 12' height. Plants grow so vigorously that there is little reason to start seed indoors. Sow directly after final frost in a sunny spot on the north end of the garden and sheltered from strong winds. Sunflowers may need staking if plants are grown isolated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDays to Maturity:\u003c\/strong\u003e 90 - 110 days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardiness Zone:\u003c\/strong\u003e 2 – 11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanting Depth:\u003c\/strong\u003e Plant 2 – 3 seeds ½” deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Spacing:\u003c\/strong\u003e 18\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth Habit:\u003c\/strong\u003e 108 – 144” tall bushy upright with 36 – 40” spread and huge 12” head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil Preference:\u003c\/strong\u003e Organic, nutrient-rich, well-drained\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Preference:\u003c\/strong\u003e Full sun\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiseases\/Pests\/Troubleshooting:\u003c\/strong\u003e Always plant tall varieties of sunflowers on the north end of a garden. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America, and will not take long to shadow an entire garden if not properly planned. Mammoth sunflowers are susceptible to leaf fungal spots, rust, and powdery mildew. Monitor regularly for caterpillars and beetles feeding on the foliage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Bright yellow sunburst petals with deep yellow-orange seeds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMammoth sunflower seeds are recommended solely for outdoor growth because of their enormous 9 – 12' height. Mammoth sunflowers grow so vigorously that there is little reason to start seed indoors. Sow directly after final frost in a sunny spot on the north end of the garden and sheltered from strong winds. Always plant tall varieties of sunflowers on the north end of a garden. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America, and will not take long to shadow an entire garden if not properly planned. Plant 2 – 3 Mammoth sunflower seeds ½” deep and 18” apart in average, rich, loamy, and well-drained soil in full sun. Mammoth sunflowers may need staking if plants are growing isolated and away from the support of a garden. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America. Trim declining foliage as summer progresses. Mammoths are susceptible to rust, leaf fungal spots and powdery mildew. Monitor regularly for caterpillars and beetles that may be feeding on the foliage. Mammoth sunflower seeds mature in 90 - 110 days as 108 – 144” tall bushy uprights with a 36 – 40” spread and huge 12” heads of bright yellow sunburst petals with countless deep yellow-orange seeds.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eHelianthus annuus\u003c\/em\u003e is native to the prairies, plains, and meadows of western North America including temperate regions of Canada and Mexico. Many Native American tribes would traditionally plant sunflowers on the north end of their gardens as the \"fourth sister\" to their “three sisters” staple crops of corn, beans, and squash.\u003c\/p\u003e\n\u003c!--split--\u003e","published_at":"2017-07-07T15:03:50-06:00","created_at":"2017-07-07T15:03:54-06:00","vendor":"Mountain Valley Seed Co.","type":"Flower Seeds","tags":["100-109 Days","90-99 Days","Annual","Brown","Flower","flower_Sunflower","Full Sun","Non-GMO","Open Pollinated","Packet","Seeds","Sunflower","Warmer","Yellow","Zone 10","Zone 4","Zone 5","Zone 6","Zone 7","Zone 8","Zone 9"],"price":189,"price_min":189,"price_max":17188,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":40027549320,"title":"4 oz","option1":"4 oz","option2":null,"option3":null,"sku":"35229","requires_shipping":true,"taxable":true,"featured_image":{"id":5478587236467,"product_id":10098437896,"position":1,"created_at":"2018-10-23T15:27:52-06:00","updated_at":"2018-10-23T15:28:08-06:00","alt":"Mammoth Sun Flower","width":700,"height":700,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/2016\/2681\/products\/sunflower-mammoth-seed-wm_700.jpg?v=1540330088","variant_ids":[40027549320,40027549384,40027549448,40027549512]},"available":true,"name":"Sunflower Seeds - 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110 days. Mammoth sunflower seeds grow one of the tallest, brightest, and most breathtaking flowers in the world! Mammoth sunflower seeds grow an unbelievable 9 – 12' tall and world famous for their stunning 12” blooms. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America and mature in as quickly as 80 days. Mammoth sunflower seeds are an ideal grow for bird enthusiasts because the countless seeds per head will keep birds well-fed and coming back for more all season long.\u003c\/p\u003e\n\u003c!--split--\u003e\n\u003ch2\u003eGrowing Mammoth Sunflower Garden Seeds\u003c\/h2\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaxonomy:\u003c\/strong\u003e\u003cem\u003e Helianthus annuus \u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeed Type:\u003c\/strong\u003e Annual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSow Indoors or Outdoors:\u003c\/strong\u003e Mammoth sunflower seeds are recommended solely for outdoor growth because of their 9 – 12' height. Plants grow so vigorously that there is little reason to start seed indoors. Sow directly after final frost in a sunny spot on the north end of the garden and sheltered from strong winds. Sunflowers may need staking if plants are grown isolated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDays to Maturity:\u003c\/strong\u003e 90 - 110 days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardiness Zone:\u003c\/strong\u003e 2 – 11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanting Depth:\u003c\/strong\u003e Plant 2 – 3 seeds ½” deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Spacing:\u003c\/strong\u003e 18\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth Habit:\u003c\/strong\u003e 108 – 144” tall bushy upright with 36 – 40” spread and huge 12” head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil Preference:\u003c\/strong\u003e Organic, nutrient-rich, well-drained\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Preference:\u003c\/strong\u003e Full sun\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiseases\/Pests\/Troubleshooting:\u003c\/strong\u003e Always plant tall varieties of sunflowers on the north end of a garden. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America, and will not take long to shadow an entire garden if not properly planned. Mammoth sunflowers are susceptible to leaf fungal spots, rust, and powdery mildew. Monitor regularly for caterpillars and beetles feeding on the foliage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Bright yellow sunburst petals with deep yellow-orange seeds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMammoth sunflower seeds are recommended solely for outdoor growth because of their enormous 9 – 12' height. Mammoth sunflowers grow so vigorously that there is little reason to start seed indoors. Sow directly after final frost in a sunny spot on the north end of the garden and sheltered from strong winds. Always plant tall varieties of sunflowers on the north end of a garden. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America, and will not take long to shadow an entire garden if not properly planned. Plant 2 – 3 Mammoth sunflower seeds ½” deep and 18” apart in average, rich, loamy, and well-drained soil in full sun. Mammoth sunflowers may need staking if plants are growing isolated and away from the support of a garden. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America. Trim declining foliage as summer progresses. Mammoths are susceptible to rust, leaf fungal spots and powdery mildew. Monitor regularly for caterpillars and beetles that may be feeding on the foliage. Mammoth sunflower seeds mature in 90 - 110 days as 108 – 144” tall bushy uprights with a 36 – 40” spread and huge 12” heads of bright yellow sunburst petals with countless deep yellow-orange seeds.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eHelianthus annuus\u003c\/em\u003e is native to the prairies, plains, and meadows of western North America including temperate regions of Canada and Mexico. Many Native American tribes would traditionally plant sunflowers on the north end of their gardens as the \"fourth sister\" to their “three sisters” staple crops of corn, beans, and squash.\u003c\/p\u003e\n\u003c!--split--\u003e"}
Mountain Valley Seed Co.

Sunflower Seeds - Mammoth

Size
$5.31
Maximum quantity available reached.

90 - 110 days. Mammoth sunflower seeds grow one of the tallest, brightest, and most breathtaking flowers in the world! Mammoth sunflower seeds grow an unbelievable 9 – 12' tall and world famous for their stunning 12” blooms. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America and mature in as quickly as 80 days. Mammoth sunflower seeds are an ideal grow for bird enthusiasts because the countless seeds per head will keep birds well-fed and coming back for more all season long.

Growing Mammoth Sunflower Garden Seeds


  • Taxonomy: Helianthus annuus
  • Seed Type: Annual
  • Sow Indoors or Outdoors: Mammoth sunflower seeds are recommended solely for outdoor growth because of their 9 – 12' height. Plants grow so vigorously that there is little reason to start seed indoors. Sow directly after final frost in a sunny spot on the north end of the garden and sheltered from strong winds. Sunflowers may need staking if plants are grown isolated.
  • Days to Maturity: 90 - 110 days
  • Hardiness Zone: 2 – 11
  • Planting Depth: Plant 2 – 3 seeds ½” deep
  • Plant Spacing: 18"
  • Growth Habit: 108 – 144” tall bushy upright with 36 – 40” spread and huge 12” head
  • Soil Preference: Organic, nutrient-rich, well-drained
  • Light Preference: Full sun
  • Diseases/Pests/Troubleshooting: Always plant tall varieties of sunflowers on the north end of a garden. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America, and will not take long to shadow an entire garden if not properly planned. Mammoth sunflowers are susceptible to leaf fungal spots, rust, and powdery mildew. Monitor regularly for caterpillars and beetles feeding on the foliage.
  • Color: Bright yellow sunburst petals with deep yellow-orange seeds

Mammoth sunflower seeds are recommended solely for outdoor growth because of their enormous 9 – 12' height. Mammoth sunflowers grow so vigorously that there is little reason to start seed indoors. Sow directly after final frost in a sunny spot on the north end of the garden and sheltered from strong winds. Always plant tall varieties of sunflowers on the north end of a garden. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America, and will not take long to shadow an entire garden if not properly planned. Plant 2 – 3 Mammoth sunflower seeds ½” deep and 18” apart in average, rich, loamy, and well-drained soil in full sun. Mammoth sunflowers may need staking if plants are growing isolated and away from the support of a garden. Mammoth sunflowers are one of the most resilient and fastest growing flowers in all of North America. Trim declining foliage as summer progresses. Mammoths are susceptible to rust, leaf fungal spots and powdery mildew. Monitor regularly for caterpillars and beetles that may be feeding on the foliage. Mammoth sunflower seeds mature in 90 - 110 days as 108 – 144” tall bushy uprights with a 36 – 40” spread and huge 12” heads of bright yellow sunburst petals with countless deep yellow-orange seeds.

Helianthus annuus is native to the prairies, plains, and meadows of western North America including temperate regions of Canada and Mexico. Many Native American tribes would traditionally plant sunflowers on the north end of their gardens as the "fourth sister" to their “three sisters” staple crops of corn, beans, and squash.

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