Lemon Queen Sunflower (Helianthus 'Lemon Queen')

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Sunlight Full sun is required for optimal blooming; tolerate light shade but will produce fewer flowers

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Watering Water deeply when the top 5–7 cm of soil is dry; avoid overwatering to prevent root rot

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Temperature Hardy to USDA zones 4–9; tolerate light spring/autumn frost, avoid prolonged heat above 38°C

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Leaf: Rough, hairy lanceolate leaves with serrated margins, arranged alternately on stems
Flower: 10–15 cm wide daisy-like blooms with pale lemon-yellow ray florets and dark brown central discs
Stem: Sturdy, hairy green stems with branching upper sections

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Watering

Keep soil consistently moist during active growth; water deeply to encourage deep root development

Fertilization

Apply balanced granular fertilizer at planting time. Avoid over-fertilizing to prevent excessive foliage growth at the expense of blooms

Banana peel compost tea：Soak chopped banana peels in water for 24 hours; dilute 1:20 for root drench; discard solids to avoid pest attraction

Pruning

Deadhead spent blooms regularly to encourage continuous flowering through the season
Remove lower yellowing leaves to improve airflow and reduce fungal disease risk
Cut back stems to ground level after the first frost in winter to prepare for spring regrowth
Thin overcrowded stems in early spring to promote strong, upright growth

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no known toxicity to cats

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

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Culture: Symbolizes adoration, loyalty, and summer warmth; popular in cut flower arrangements

Usage: Ornamental garden plant, cut flower crop, and pollinator habitat for bees and butterflies