Helianthus maximiliana (Maximilian Sunflower)
From CONPS: This tall, (3-9') rigid perennial has hairy stems and coarse, grey-green leaves, often folded lengthwise with many 2-3 inch bright yellow ray flowers, which bloom in late summer. Good for bees, birds and butterflies, it works in the background, along fences, or in a wildflower meadow. May self-seed. Drought tolerant and deer resistant.
Cutting them back early in the season results in a nice short flowering clump, just like a Buffalo would do. Not suited to small spaces because it needs room!
HPEC Description:
Height x Width - 60" x 30"
Water Requirements – Medium
Exposure – Sun
Flower Color - Yellow
Bloom – Summer to Fall
Wildlife Value - Nectar and pollen for bees and butterflies, seeds for birds