Weld

Reseda luteola

Native to:
Afghanistan, Albania, Algeria, Austria, Azores, Baleares, Belgium, Bulgaria, Canary Is., Corse, Cyprus, Czechia-Slovakia, East Aegean Is., Egypt, France, Germany, Greece, Hungary, Iran, Iraq, Italy, Kazakhstan, Kirgizstan, Kriti, Krym, Lebanon-Syria, Libya, Madeira, Morocco, Netherlands, North Caucasus, NW. Balkan Pen., Pakistan, Palestine, Poland, Portugal, Romania, Sardegna, Sicilia, Spain, Switzerland, Tadzhikistan, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Turkmenistan, Ukraine, Uzbekistan

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Resedaceae
Genus:
Reseda
Species:
Reseda luteola
USDA Symbol:
RELU2

Growth Characteristics

Life Cycle:
Biennial
Growth Habit:
Forb/herb
Height:
150 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
jun,jul,aug,sep
Bloom Colors:
yellow, green

Wildlife Benefits

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

Garden & Ecology Notes

Wildlife Value:
bees, butterflies
Deer Resistant:
Yes

Soil Requirements

Soil Type:
well-drained, sandy or rocky soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
thrives in disturbed soils and open habitats

Propagation & Germination

Stratification:
None required
Germination Time:
14–28 days
Notes:
Seeds require light for germination; surface sow and do not cover. Germinates readily at 15-20°C.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months. Requires light / surface sow (fine seed).

Source: Ontario Rock Garden & Hardy Plant Society