Lacy Phacelia (Phacelia tanacetifolia)

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Sunlight Full sun to partial shade; thrives in bright, open conditions and tolerates light afternoon shade in hot regions

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Watering Water deeply when the top 2–3 cm of soil dries out; drought-tolerant once established

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Temperature Tolerates light frost during early growth; performs best in cool to temperate summer temperatures

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Leaf: Fern-like, finely divided, hairy, with a mild aromatic scent when crushed
Flower: Dense, coiled clusters of pale blue to violet bell-shaped blooms that unfurl as they mature
Stem: Erect, hairy, branching near the upper portion to support flower clusters

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Watering

Water regularly to support seedling establishment; reduce watering once plants mature

Fertilization

Optional diluted balanced feed once monthly for vigorous growth. No regular fertilization needed for established plants in nutrient-poor soils

Banana peel tea：Steep dried banana peels in water for 24 hours, dilute 1:20 for root drench; avoid applying to foliage to prevent fungal growth

Pruning

Deadhead spent flower clusters to extend the blooming period by 2–3 weeks
Thin overcrowded seedlings to 15–20 cm apart for improved airflow and growth
Remove faded plants at the end of the growing season to control self-seeding if desired

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no documented adverse effects

Humans: No known toxic effects to humans upon ingestion or contact

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Culture: Valued as a pollinator-friendly cover crop; symbolizes support for bee conservation and biodiversity

Usage: Pollinator garden plant, green manure cover crop, cut flower for floral arrangements