Heirloom Giant Mammoth Sunflower Seeds – Easy to Grow & Impressive Height (9 to 12 feet tall)Helianthus annuusListing is for 1 packet of 20 seeds Learn everything you need to know about growing sunflowers from seed with my YouTube video tutorial: https://youtu.be/CPne6yt5uTI This is one of the tallest sunflower varieties in the world. Huge 9 to 12 foot stalks adorn bright and sunny blooms that are around 1 foot in diameter. Each stalk typically produces one bloom. They start blooming at about 3 months from seed. Each head will produce a ton of seeds for human and bird consumption. After blooming, the stalks and leaves offer a lot of biomass to be used for composting or mulching. How To Grow From Seed Sun: Full Sun Water: Allow the soil to dry out a little bit in-between watering. Established plants are drought tolerant. Fertilizer: Doesnt require a lot of fertilizer since this is a wildflower. Can give it some organic granular fertilizer every now and then to promote lush growth and blooms. When & How To Sow Seeds: Can direct sow 1/2 inch deep, after the last frost or start in larger sized pots 6 weeks before your last spring frost date. Direct sowing is preferred because sunflowers grow a long tap root. Space 2 FT apart for good air circulation. Plants will get around 6FT tall at maturity. It helps to direct sow the seeds next to a fence or structure for support as tall sunflowers can blow over from strong winds. Direct sow in a spot that gets full sun, covering with 1/4 inch of soil. Keep the soil moist to speed up germination. Germination: 5-14 days Days To Maturity: Usually starts blooming in 2 to 3 months from seed How & When To Harvest: Harvest blooms early in the morning for fresh cut flowers. Frequent harvesting and deadheading of spent flowers encourages more blooms. Common Diseases: Sunflowers don't get too many diseases but in wet or humid environments can get powdery mildew or black spots. Improve airflow by proper plant spacing. Spray with 1 cup of hydrogen peroxide per gallon of water to clean and disinfect. Common Pests: Sunflowers don't have too many pests. Small critters like squirrels and birds like to eat the seeds from the flower heads. Do I have a YouTube video tutorial on how to grow this? YES Watch it here: https://youtu.be/CPne6yt5uTI Additional Tips/Information: N/A
