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.