Bitterweed

Picris rhagadioloides

Native to:
Albania, Algeria, Bulgaria, Cyprus, East Aegean Is., Egypt, France, Germany, Greece, Italy, Kriti, Lebanon-Syria, Libya, NW. Balkan Pen., Palestine, Poland, Sinai, Spain, Switzerland, Türkiye, Türkiye-in-Europe

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Picris
Species:
Picris rhagadioloides
USDA Symbol:
PISP

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Forb/herb
Height:
60 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
apr,may,jun,jul
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:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
thrives in disturbed habitats

Propagation & Germination

Stratification:
None required
Germination Time:
7–21 days

The above propagation data sourced from Claude AI