Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Onagraceae

Genus:

Oenothera

Species:

Oenothera riparia

Growth Characteristics

Growth Habit:

Forb/herb

Height:

100 cm

Drought Tolerance:

Low

Bloom Months:

jun,jul,aug,sep

Bloom Colors:

yellow

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

Source: deepseek-v4-flash

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds benefit from cold stratification for 30-60 days; surface sow on moist soil and keep warm after stratification.

Source: deepseek-v4-flash