Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Apiaceae

Genus:

Harperella

Species:

Harperella nodosa

USDA Symbol:

PTNO

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:

white

Soil Requirements

Soil Type:

sandy, nutrient-poor, well-drained soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

consistently moist

Notes:

Typically found in rocky or sandy streambeds

Propagation & Germination

Stratification:

Cold/moist stratification required — 60–90 days

The above propagation data sourced from Claude AI