Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Plantaginaceae

Genus:

Gratiola

Species:

Gratiola lutea

USDA Symbol:

GRAU

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

40 cm

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

may,jun,jul,aug,sep

Bloom Colors:

yellow

Garden & Ecology Notes

Deer Resistant:

Yes

Soil Requirements

Soil Type:

moist, nutrient-rich, loamy soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

tolerates poor drainage

Moisture:

consistently moist

Notes:

commonly found in wetlands and marshes

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Seeds require light for germination; surface sow and keep consistently moist.

The above propagation data sourced from Claude AI