Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Rudbeckia

Species:

Rudbeckia speciosa

Growth Characteristics

Growth Habit:

Forb/herb

Height:

120 cm

Drought Tolerance:

Medium

Bloom Colors:

yellow, orange-yellow, brown-purple

Keystone Species Ranking

Caterpillar Keystone:

★★☆☆☆ Butterfly & moth species supported by this genus (NWF)

Pollen Specialist Bee Keystone:

★★★★☆ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

bees, butterflies, birds

Source: DeepSeek deepseek-chat

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds germinate readily after cold stratification; surface sow and keep moist.

Source: DeepSeek deepseek-chat