Yellow Crocus (Crocus flavus)

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Sunlight Full sun to partial shade; requires direct sunlight for optimal blooming and corm health

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Watering Water sparingly during active growth; avoid waterlogging corms to prevent fungal rot

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Temperature Cold-hardy to -15°C; dormant in summer heat above 20°C

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Leaf: Narrow, linear, grass-like basal leaves with a central white stripe, emerging alongside or after flowers
Flower: Bright golden-yellow, cup-shaped blooms with six tepals; lightly fragrant in select cultivars
Corm: Small underground storage corm with a papery protective tunic

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Watering

Keep soil slightly moist during active growth (late winter to early spring)

Fertilization

Light, balanced feed as foliage emerges. Use diluted, low-nitrogen fertilizer to support corm development without promoting excessive foliage growth

Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle 1–2 tsp around corms in early autumn before dormancy

Pruning

Allow foliage to die back naturally after blooming to nourish corms for next season
Remove spent flower heads to prevent seed formation and conserve corm energy
Thin overcrowded corms every 3–4 years in late summer to improve blooming

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified non-toxic to cats; no reported toxic reactions

Humans: Non-toxic to humans; no known adverse effects from ingestion or contact

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Culture: Symbolizes hope and new beginnings in European spring folklore

Usage: Ornamental garden plant; small cut flower arrangements for indoor display