- Hardiness Zone: 2-11 Annual
Sunlight: Mammoth Grey Stripe Sunflowers thrive in full sun and require at least 6-8 hours of direct sunlight daily. They grow best in open, sunny areas.
Soil: Prefers well-drained, moderately fertile soil with a pH between 6.0 and 7.5. Sunflowers are adaptable to various soil types but grow best in soil enriched with compost or organic matter.
When to Plant: Sunflowers are warm-season plants and should be planted after the last frost date in spring when the soil has warmed to at least 50°F (10°C). These sunflowers grow best when direct-sown outdoors.
Direct Sowing: Sow seeds directly in the garden 1-1.5 inches deep and 18-24 inches apart. Space rows about 30 inches apart to allow room for the plants to grow large and tall. For a continuous bloom throughout summer, stagger plantings every 2-3 weeks.
Watering: Keep the soil consistently moist during germination and early growth. Once established, sunflowers are somewhat drought-tolerant but perform best with regular watering, especially during dry periods. Water deeply to encourage deep root growth.
Fertilization: Mammoth sunflowers are heavy feeders. They benefit from a balanced fertilizer or compost applied at planting time. As the plants grow, side-dress with compost or a slow-release fertilizer once or twice during the growing season to support their rapid growth.
Mulching and Weeding: Apply mulch around the base of the plants to retain soil moisture, suppress weeds, and regulate soil temperature. Mulching also helps to protect the roots from temperature fluctuations.
Staking: Mammoth Grey Stripe Sunflowers can grow up to 12 feet tall and may require staking, especially in windy areas. Use strong stakes or garden twine to support the plants and prevent them from toppling over as they grow tall and heavy with flowers.
Pest and Disease Management: Sunflowers are generally hardy and resistant to pests, but they can occasionally attract aphids, caterpillars, and birds. Use organic pest control methods like neem oil, insecticidal soap, or hand-picking to manage pests. Protect young seedlings from birds with netting until the plants are well-established.
Harvesting for Seeds: Seeds are ready to harvest when the back of the flower head turns yellow and the petals have dried. The seeds should be plump, and the head will start to droop. Cut the flower heads off and hang them upside down in a cool, dry place to allow the seeds to fully dry. Once dry, rub the seeds from the flower head and store them in an airtight container.
Harvesting for Flowers: If using the flowers for decoration or cut flowers, harvest the blooms when the petals just begin to open. Cut the flower heads with a long stem using a sharp knife or pruning shears.
Storing Seeds: Once fully dry, store the seeds in a cool, dry place. They can be stored in an airtight container for several months. Seeds can be eaten raw, roasted, or saved for next year’s planting.
Culinary and Ornamental Uses: Mammoth Grey Stripe Sunflower seeds are a nutritious snack that can be eaten raw or roasted. The flower heads can also be left on the plants to attract birds, or they can be used in floral arrangements for their large, stunning blooms.
Visit Our Detailed Sunflower Growing Guide and Tips!
Flavor and Culinary Uses
Flavor Profile: Mammoth Grey Stripe Sunflower seeds offer a mild, nutty flavor, perfect for roasting as a snack or adding to baked goods and salads.
Culinary Uses: The large seeds from Mammoth Grey Stripe Sunflowers are ideal for roasting and enjoying as a nutritious snack. They can also be added to trail mixes, sprinkled on salads, or used in baking. Additionally, the seeds are perfect for attracting birds to your garden, offering both visual and culinary appeal.
Plant Characteristics
Appearance: Mammoth Grey Stripe Sunflowers produce massive, showy blooms with bright yellow petals surrounding a large, dark center. The flowers can reach up to 12 inches (30 cm) in diameter, while the plants themselves grow to impressive heights of 8-12 feet (2.4-3.7 meters), making them a standout feature in any garden.
Height: This variety typically grows to about 8-12 feet (2.4-3.7 meters) tall, supported by strong, thick stems that help anchor the large blooms.
Growth Habit: Mammoth Grey Stripe Sunflowers thrive in full sun and well-drained soil, maturing in approximately 80-90 days. These sunflowers are heat-tolerant and easy to grow, requiring minimal maintenance. They produce large seed heads, which are ready for harvest once the flower heads begin to droop and dry.
Benefits of Growing Mammoth Grey Stripe Sunflowers
Giant Blooms: Mammoth Grey Stripe Sunflowers grow massive, eye-catching blooms that can reach up to 12 inches in diameter, making them a striking addition to any garden.
Edible Seeds: These sunflowers produce large, nutritious seeds that can be roasted for a tasty snack or left in the garden to attract birds.
Pollinator Attraction: The vibrant blooms attract bees, butterflies, and other pollinators, supporting biodiversity in your garden.
Heat Tolerant: This variety thrives in hot climates and requires minimal care, making it a great option for gardeners of all skill levels.
Seeds Per Packet
1g | Approximately 15 |
3g | Approximately 45 |
5g | Approximately 75 |
7g | Approximately 105 |
Elevate your garden with the towering beauty and practical benefits of Mammoth Grey Stripe Sunflowers. Their impressive height, edible seeds, and pollinator-friendly nature make them a standout addition to any garden. Enjoy the stunning, homegrown sunflowers and a delicious harvest of seeds all season long!
Visit Our Detailed Sunflower Growing Guide and Tips!
Flavor and Culinary Uses
Flavor Profile: Mammoth Grey Stripe Sunflower seeds offer a mild, nutty flavor, perfect for roasting as a snack or adding to baked goods and salads.
Culinary Uses: The large seeds from Mammoth Grey Stripe Sunflowers are ideal for roasting and enjoying as a nutritious snack. They can also be added to trail mixes, sprinkled on salads, or used in baking. Additionally, the seeds are perfect for attracting birds to your garden, offering both visual and culinary appeal.
Plant Characteristics
Appearance: Mammoth Grey Stripe Sunflowers produce massive, showy blooms with bright yellow petals surrounding a large, dark center. The flowers can reach up to 12 inches (30 cm) in diameter, while the plants themselves grow to impressive heights of 8-12 feet (2.4-3.7 meters), making them a standout feature in any garden.
Height: This variety typically grows to about 8-12 feet (2.4-3.7 meters) tall, supported by strong, thick stems that help anchor the large blooms.
Growth Habit: Mammoth Grey Stripe Sunflowers thrive in full sun and well-drained soil, maturing in approximately 80-90 days. These sunflowers are heat-tolerant and easy to grow, requiring minimal maintenance. They produce large seed heads, which are ready for harvest once the flower heads begin to droop and dry.
Benefits of Growing Mammoth Grey Stripe Sunflowers
Giant Blooms: Mammoth Grey Stripe Sunflowers grow massive, eye-catching blooms that can reach up to 12 inches in diameter, making them a striking addition to any garden.
Edible Seeds: These sunflowers produce large, nutritious seeds that can be roasted for a tasty snack or left in the garden to attract birds.
Pollinator Attraction: The vibrant blooms attract bees, butterflies, and other pollinators, supporting biodiversity in your garden.
Heat Tolerant: This variety thrives in hot climates and requires minimal care, making it a great option for gardeners of all skill levels.
Seeds Per Packet
1g | Approximately 15 |
3g | Approximately 45 |
5g | Approximately 75 |
7g | Approximately 105 |
Elevate your garden with the towering beauty and practical benefits of Mammoth Grey Stripe Sunflowers. Their impressive height, edible seeds, and pollinator-friendly nature make them a standout addition to any garden. Enjoy the stunning, homegrown sunflowers and a delicious harvest of seeds all season long!
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