Little Amphianthus ⚠️ Threatened

Gratiola amphiantha

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Plantaginaceae
Genus:
Gratiola
Species:
Gratiola amphiantha
USDA Symbol:
AMPU7

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Forb/herb
Height:
10 cm
Light Requirements:
Part Shade
Drought Tolerance:
Low
Bloom Months:
mar,apr,may
Bloom Colors:
white, purple

Soil Requirements

Soil Type:
sandy, acidic, nutrient-poor soil
pH:
5.5 - 6.5 (slightly acidic to neutral)
Drainage:
poor drainage tolerated
Moisture:
consistently moist
Notes:
often found in shallow, temporary pools

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds require light for germination. Best sown on moist soil surface in cool conditions.

The above propagation data sourced from Claude AI