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Helianthus maximiliani (Asteraceae)
A stout, upright perennial native to Texas extending north throughout the central plains states. Numerous bright yellow 3 inch flowers are found on the upper half of unbranched stems. The leaves are 4 to 8 inches in length, tapering at both ends. Soil fertility and the amount of moisture will determine the height of the plant. Does not seem to be temperamental about soil conditions but requires full sun. Provides excellent forage for upland game birds and other wildlife. A true perennial requiring two years to become established.
Average planting success with this species: 70%
Height: 3-10 feet
Germination: 7-25 days
Optimum soil temperature for germination: 68F-85F
Sowing depth: 1/8"
Blooming period: July-October
Average seeds per pound: 182,000
Seeding rate: 5 lbs. per acre
1 oz Covers: 545 sq. ft.
Suggested use: Wildlife food plots, disturbed areas, along fences.
Miscellaneous: Maximilian Sunflowers are readily grazed by cattle and deer. Produces an abundant supply of seeds which many species of birds find hard to resist.