Fort Apache Sunflower is a striking, tall variety with medium to large flower heads reaching 5 to 9 inches across, grown on robust plants that stand 5 to 7 feet high. This cultivar originates from the Fort Apache Reservation in east-central Arizona, where it developed distinctive plump, striped seeds with heavy hulls. Hardy across zones 2 to 11, it thrives in moderate water and well-balanced soil (pH 6.0 to 7.5), making it adaptable to most growing regions. What sets this sunflower apart is its allelopathic property, meaning it naturally suppresses broad-leaf weeds and certain crop seeds planted nearby, reducing the need for manual weeding.
—
Moderate
2-11
?in H x ?in W
—
Moderate
Hover over chart points for details
Fort Apache Sunflower produces commanding 5 to 9 inch flower heads on tall, sturdy plants that occasionally branch for multiple blooms. The seeds themselves are striking, plump and striped with notably heavy hulls, a characteristic that speaks to centuries of cultivation on the Fort Apache Reservation. Its allelopathic nature makes it a smart choice for gardeners seeking natural weed suppression without chemical intervention; plants simply inhibit nearby broad-leaf weeds and seeds within a few feet.
The plump, heavily hulled seeds are prized for eating fresh or as food for wildlife and birds. Gardeners also grow Fort Apache Sunflower as an ornamental, with its tall stature and large flower heads serving as striking late-summer focal points.
No timeline data available yet for this variety.
Start seeds indoors 4 to 6 weeks before your last frost date, sowing at a depth of 1 inch in warm soil (50 to 75 degrees Fahrenheit). Transplant seedlings into larger containers as they develop true leaves.
Harden off seedlings by gradually exposing them to outdoor conditions over 7 to 10 days. Transplant outdoors after all danger of frost has passed and soil has warmed. Space plants 12 to 24 inches apart to allow room for mature growth and occasional branching.
Direct sow seeds outdoors after the last frost date when soil temperature reaches 50 degrees Fahrenheit or warmer. Plant seeds 1 inch deep and space them 12 to 24 inches apart.
Allow flower heads to mature on the plant until they turn brown and the back of the head begins to dry out, typically 90 to 120 days after planting. Cut mature heads from the plant and hang them upside down in a warm, dry location to finish drying. Once fully dried, rub the head to extract the plump, striped seeds.
Enter your ZIP code to see a personalized growing calendar for this plant.
“This variety carries the story of the Fort Apache people of east-central Arizona, who cultivated and preserved it through generations. Fort Apache Sunflower now lives in the Native Seeds/SEARCH Seed-Bank Collection, honoring both its indigenous origins and the ongoing work to protect heritage crop diversity. Its presence in this collection ensures that this southwestern adapted variety continues to thrive for future growers.”