Cutleaf Evening Primrose (Oenothera laciniata)

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Sunlight Full sun to partial shade; thrives in open, unshaded areas and tolerates dry, nutrient-poor soils

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Watering Drought-tolerant; water only during prolonged dry periods, avoiding overwatering to prevent root rot

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Temperature Hardy to extreme cold and heat, suitable for USDA hardiness zones 4 through 9

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Leaf: Deeply lobed, linear to lanceolate gray-green foliage with fine, soft hairs
Flower: Four bright yellow petals, opening in the evening and fading to pale pink by midday
Stem: Slender, branching, prostrate to ascending stems covered in dense fine hairs

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Watering

Water occasionally during dry spells; allow soil to fully dry between waterings

Fertilization

Light, diluted feed once monthly. Use balanced, low-strength fertilizer to support flowering

Composted banana peel tea：Steep fully composted banana peels in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pests

Pruning

Deadhead spent blooms regularly to promote extended flowering through the season
Trim back faded foliage to ground level in late autumn to tidy the planting area
Thin overcrowded clumps in early spring to improve air circulation and reduce competition

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic to cats

Humans: No known toxicity to humans; edible young leaves and roots in small quantities

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Culture: Symbolizes anticipation, as blooms open in the evening to welcome pollinators

Usage: Ornamental ground cover, native pollinator habitat for moths, bees, and butterflies