Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Helianthus

Species:

Helianthus silphioides

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

8-12 ft

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

aug, sep

Bloom Colors:

Red, Yellow

Native Range

United States: Alabama, Arkansas, Illinois, Kentucky, Louisiana, Missouri, Mississippi, Oklahoma, Tennessee

Keystone Species Ranking

Caterpillar Keystone:

★★☆☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)

Bee Keystone:

★☆☆☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)

Soil Requirements

Soil Type:

rich, well-drained loamy soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

prefers open, sunny habitats