Dakota Burgundy Beardtongue (Penstemon 'Dakota Burgundy')

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Sunlight Full sun to partial sun; thrives in bright direct light, tolerates light afternoon shade in hot summer climates

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Watering Water deeply when the top 2–3 cm of soil is dry; avoid overwatering to prevent root rot

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Temperature Cold-hardy to -30°C; prefers summer temperatures between 18–28°C, tolerates short heatwaves

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Leaf: Narrow lance-shaped leaves with deep burgundy-purple foliage, retained through the growing season
Flower: Tubular pale pink to lavender blooms on upright, slender spikes
Stem: Slender green upright stems that support flower clusters without staking

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Watering

Keep soil evenly moist during active growth and blooming

Fertilization

Light balanced feed once monthly. Use diluted organic fertilizer to prevent foliage burn

Eggshell powder topdressing：Crush dried eggshells into fine powder; sprinkle 1 tsp per plant around the base; water gently to incorporate into soil

Pruning

Deadhead spent flower spikes to encourage extended blooming through early summer
Trim back foliage to 5 cm above soil level in late autumn after first frost
Thin overcrowded clumps every 2–3 years in early spring to improve airflow and reduce disease risk

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no harmful effects from ingestion

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

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Culture: N/A

Usage: Ornamental garden plant; container planting; pollinator-friendly for bees and hummingbirds