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Phacelia

Phacelia tanacetifolia

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Phacelia is a bee-friendly annual with tightly coiled flower clusters that open progressively into delicate blue, purple, or pink blooms with protruding stamens. Growing 12–24 inches tall, it produces fine, feathery foliage and is a prolific nectar producer that attracts bees, butterflies, and beneficial insects. Commonly used as a cover crop, it also makes an excellent ornamental flower for pollinator gardens.

Phacelia

Common Problems

Select the problem your Phacelia is experiencing to get a treatment guide.

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Underwateringchevron_right
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Wiltingchevron_right
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Slow Growthchevron_right
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Yellow Leaveschevron_right

Care Guide

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Light
Full sun; requires 6+ hours of direct sunlight daily for vigorous growth and abundant flowering
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Water
Moderate watering; prefers drier conditions once established; water during prolonged dry periods; avoid overwatering
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Soil
Well-draining, average to poor soil; pH 6.0–7.5; tolerates sandy, rocky, and infertile soils; dislikes heavy clay
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Fertiliser
Minimal fertilizer needed; avoid high nitrogen, which promotes foliage over flowers; optional light balanced feeding
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Temperature
Cool to warm season annual; optimal range 55–75°F; some drought tolerance once established
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Humidity
Low to average humidity; prefers drier conditions; excellent air circulation prevents fungal disease

Toxicity

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Non-toxic; safe for all household members including cats, dogs, and children

Common Diseases

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Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.