{"product_id":"mammoth-grey-stripe-sunflower","title":"Mammoth Grey Stripe Sunflower Seeds","description":"\u003cp data-start=\"0\" data-end=\"433\"\u003e\u003cstrong\u003eMammoth Grey Stripe Sunflower\u003c\/strong\u003e is a classic, towering sunflower that brings big height and bold blooms to any sunny garden space. This variety is easy to grow, performs well even in less-than-perfect soil, and produces impressive flower heads that make a strong statement along fences, garden borders, and backdrops. With its single-stem habit, it’s also a great option for cut flower use when you want one big, showy bloom per plant.\u003c\/p\u003e\n\u003ch2 data-start=\"435\" data-end=\"457\"\u003eSeed Packet Details\u003c\/h2\u003e\n\u003cp data-start=\"459\" data-end=\"523\"\u003ePacket Size: Standard home-garden seed packet (Approx. 50 seeds)\u003c\/p\u003e\n\u003cp data-start=\"525\" data-end=\"568\"\u003ePacked with care and shipped from Kentucky.\u003c\/p\u003e\n\u003ch2 data-start=\"570\" data-end=\"588\"\u003eProduct Details\u003c\/h2\u003e\n\u003cp data-start=\"590\" data-end=\"714\"\u003eBotanical Name: Helianthus annuus\u003cbr data-start=\"623\" data-end=\"626\"\u003eVariety: Mammoth Grey Stripe Sunflower\u003cbr data-start=\"664\" data-end=\"667\"\u003eSeed Type: Open-pollinated\u003cbr data-start=\"693\" data-end=\"696\"\u003eLife Cycle: Annual\u003c\/p\u003e\n\u003ch2 data-start=\"716\" data-end=\"733\"\u003eWhat to Expect\u003c\/h2\u003e\n\u003cp data-start=\"735\" data-end=\"1116\"\u003eMammoth Grey Stripe grows into a tall, sturdy sunflower reaching roughly 8–12 feet in height under good conditions. Plants produce large blooms, and the single-stem growth habit typically means one main flower per plant, making it a solid choice for cut flower gardens and bold landscape impact. Once established, it’s a dependable performer with simple, low-fuss care in full sun.\u003c\/p\u003e\n\u003ch2 data-start=\"1118\" data-end=\"1135\"\u003eGrowing Basics\u003c\/h2\u003e\n\u003cp data-start=\"1137\" data-end=\"1347\"\u003eSun: Full sun\u003cbr data-start=\"1150\" data-end=\"1153\"\u003ePlant Height \/ Spread: 8–12 feet\u003cbr data-start=\"1185\" data-end=\"1188\"\u003eSow Method: Direct sow\u003cbr data-start=\"1210\" data-end=\"1213\"\u003eSow Depth: 1\/2 inch\u003cbr data-start=\"1232\" data-end=\"1235\"\u003eDays to Maturity: Approximately 55 days\u003cbr data-start=\"1274\" data-end=\"1277\"\u003eGrowing Conditions: Warm weather; adaptable to average or poorer soils\u003c\/p\u003e\n\u003ch2 data-start=\"1349\" data-end=\"1377\"\u003eGrowing Guide: Sunflowers\u003c\/h2\u003e\n\u003ch3 data-start=\"1379\" data-end=\"1391\"\u003eOverview\u003c\/h3\u003e\n\u003cp data-start=\"1393\" data-end=\"1630\"\u003eSunflowers are warm-season annuals prized for fast growth, strong stems, and bright blooms. Mammoth Grey Stripe is known for impressive height and big flower heads, making it a favorite for garden backdrops and sunny statement plantings.\u003c\/p\u003e\n\u003ch3 data-start=\"1632\" data-end=\"1651\"\u003eBefore Planting\u003c\/h3\u003e\n\u003cp data-start=\"1653\" data-end=\"1828\"\u003eChoose a sunny location with room for tall growth. Sunflowers perform best where they won’t be shaded, and they benefit from a spot that’s somewhat protected from strong wind.\u003c\/p\u003e\n\u003ch3 data-start=\"1830\" data-end=\"1842\"\u003ePlanting\u003c\/h3\u003e\n\u003cp data-start=\"1844\" data-end=\"1997\"\u003eDirect sow after the danger of frost has passed and soil has warmed. Sow seeds about 1\/2 inch deep and keep the area weed-free while seedlings establish.\u003c\/p\u003e\n\u003ch3 data-start=\"1999\" data-end=\"2011\"\u003eWatering\u003c\/h3\u003e\n\u003cp data-start=\"2013\" data-end=\"2229\"\u003eWater regularly during early growth to establish strong roots. Once established, sunflowers are typically more forgiving with moisture, though consistent watering supports stronger stems and better bloom development.\u003c\/p\u003e\n\u003ch3 data-start=\"2231\" data-end=\"2246\"\u003eFertilizing\u003c\/h3\u003e\n\u003cp data-start=\"2248\" data-end=\"2402\"\u003eSunflowers often grow well in average soil. If your soil is very poor, mixing in compost before planting can help support taller plants and larger blooms.\u003c\/p\u003e\n\u003ch3 data-start=\"2404\" data-end=\"2424\"\u003eDays to Maturity\u003c\/h3\u003e\n\u003cp data-start=\"2426\" data-end=\"2540\"\u003eMammoth Grey Stripe typically begins flowering in about 55 days, depending on temperatures and growing conditions.\u003c\/p\u003e\n\u003ch3 data-start=\"2542\" data-end=\"2556\"\u003eHarvesting\u003c\/h3\u003e\n\u003cp data-start=\"2558\" data-end=\"2718\"\u003eFor cut flower use, harvest when the bloom is beginning to open and petals are just starting to lift. Place stems in fresh water immediately for best vase life.\u003c\/p\u003e\n\u003ch3 data-start=\"2720\" data-end=\"2736\"\u003eGrowing Tips\u003c\/h3\u003e\n\u003cp data-start=\"2738\" data-end=\"2898\"\u003eBecause this variety gets tall, consider staking in windy areas. Planting along a fence line can add support and keep tall stalks upright through summer storms.\u003c\/p\u003e","brand":"Backyard Harvest Seed Company","offers":[{"title":"Default Title","offer_id":51711244992814,"sku":null,"price":3.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/0284\/7534\/files\/Mammoth-Grey.jpg?v=1770325184","url":"https:\/\/backyardharvestseeds.com\/products\/mammoth-grey-stripe-sunflower","provider":"Backyard Harvest Seed Company","version":"1.0","type":"link"}