Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Bidens

Species:

Bidens hyperborea

USDA Symbol:

BIHY

Growth Characteristics

Life Cycle:

Annual

Growth Habit:

Forb/herb

Height:

100 cm

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

jul,aug,sep

Bloom Colors:

yellow

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Keystone Species Ranking

Pollen Specialist Bee Keystone:

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

Garden & Ecology Notes

Wildlife Value:

bees, birds

Soil Requirements

Soil Type:

rich, moist, well-drained loamy soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

tolerates poor drainage

Moisture:

consistently moist

Notes:

commonly found in wetland areas

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

7–21 days

Notes:

Seeds require light for germination. Surface sow or barely cover.

The above propagation data sourced from Claude AI