Helianthus maximiliani

Maximilian's Sunflower is very showy and towers above surrounding vegetation when in bloom. It is best suited for full sun in dry to medium conditions. Helianthus species are difficult to identify positively, but H. maximiliani is a bit easier to ID because of the distinctive folding of the leaves; the way it curves and without as many teeth on the leaf edges is an excellent distinguishing feature look.

Like most other Sunflower species, Maximilian's Sunflower attracts several long-tongued bees, short-tongued bees, butterflies, and moths. Maximillian's Sunflower is also one of the larval host plants of the Bordered Patch.
Most native sunflowers are rhizomatous and may spread vigorously. Therefore, it is not suitable for small landscape plantings.

Larval Host Plant: Silvery Checkerspot (Chlosyne nycteis), Bordered Patch (Chlosyne lacinia)

Nectar Source Plant: Monarch Butterfly (Danaus plexippus). Bumble Bees (Bombus spp.), Long Horned Bees (Melissodes spp.), Sweat Bees (Halictus spp.)

BONAP MAP

Height: 6’-7'
Spread: 2’-4'
Bloom: August-September 
Light: Full Sun, Part Shade
Water: Medium
Zone: 3, 4, 5, 6, 7, 8, 9
Origin: Texas, North America