Maximilian Sunflower

Common Name: Maximilian Sunflower

Scientific Name: Helianthus maximilianii

USDA Hardiness Zones: 4 to 10

Approximate number of seeds per kilogram (pound) :  400,400 (182,000)

Sun: full sun

Water: keep soil moderately moist during germination, do not overwater

Soil: cover with 1/8 inch of soil, use rich, well-drained soil, but sunflowers are generally tolerant of a variety of soil conditions

Temperature: 21 to 30 degrees Celsius (70 to 85 degrees Fahrenheit)

Spacing: 5 pounds per acre

Germination Time: 7 to 25 days

The maximilian sunflower is native to Texas.  Unlike the more popular Helianthus annuus, maximilians are true perennials and will become established in a meadow or field.  They produce numerous yellow blooms much smaller than the more popular annual varieties.  Sunflowers grow best in full sun and generally need at least 6 hours a day.  Leaving  dead seed heads out after the growing season has ended provides food for migrating birds in the autumn.