Montgomery Astilbe (Astilbe 'Montgomery')

Montgomery Astilbe

Astilbe 'Montgomery'

Plum-purple plumes rise like soft smoke above ferny foliage. Herbaceous perennial ornamental; common name: Montgomery Astilbe.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Partial shade to full shade; avoid direct midday sun which can scorch delicate foliage
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Watering Keep soil consistently moist but not waterlogged; avoid allowing the root zone to dry out completely
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Temperature Hardy to -30°C; prefers cool temperate conditions, avoid prolonged heat above 28°C
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Characteristics

  • Leaf: Fern-like compound leaves with dark green, serrated leaflets and a textured, matte surface
  • Flower: Dense, upright plumes of tiny plum-purple florets with a soft, feathery appearance
  • Stem: Sturdy, upright green stems with fine, sparse hairs
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Care Guide

Watering

Maintain consistent soil moisture; apply mulch to retain water and regulate soil temperature

Fertilization

Apply diluted balanced fertilizer once monthly. Use a slow-release granular fertilizer in early spring for sustained nutrient delivery

Composted banana peel tea:Compost banana peels for 2 weeks, steep in water for 24 hours, dilute 1:20 for root drench; avoid using raw peels to prevent pest infestations
Pruning
  • Cut back spent flower plumes after blooming to maintain a tidy appearance and redirect energy to root growth
  • Trim dead foliage to ground level in late autumn or early spring to prepare for new growth
  • Divide overcrowded clumps every 3–4 years in early spring to promote vigorous flowering
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

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

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

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Garden Uses & Culture

Culture: Symbolizes patience and resilience due to its ability to thrive in low-light conditions

Usage: Shade garden border plant, cut flower for floral arrangements, container ornamental