Great Yellow Woodsorrel

Oxalis grandis

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Oxalidaceae
Genus:
Oxalis
Species:
Oxalis grandis
USDA Symbol:
OXGR

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Forb/herb
Height:
60 cm
Light Requirements:
Part Shade
Drought Tolerance:
Low
Bloom Months:
apr,may,jun
Bloom Colors:
yellow

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers shaded woodland areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–30 days
Notes:
Seeds require light for germination. Sow on surface and keep moist.

The above propagation data sourced from Claude AI