Plantain Lily (Hosta plantaginea)

Plantain Lily

Hosta plantaginea

Its sweet-scented blooms unfurl at dusk, a summer evening delight. Herbaceous perennial foliage plant; common names: plantain lily, August lily.

Low light
1–2/week
Beginner
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Plant Needs

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Sunlight Bright indirect light or full shade; avoid harsh midday summer sun which can scorch foliage
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Watering Water thoroughly when the top 5 cm of soil feels dry; avoid overwatering to prevent root rot
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Temperature Cold hardy to -30°C; avoid prolonged temperatures above 32°C which may cause leaf wilting
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Characteristics

  • Leaf: Broad, glossy, heart-shaped green leaves forming dense clumps
  • Flower: Fragrant white trumpet-shaped blooms on upright, tall scapes
  • Stem: Short rhizomatous underground stems for clonal spread
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Care Guide

Watering

Keep soil consistently moist but not waterlogged

Fertilization

Apply balanced slow-release fertilizer once monthly. Avoid high-nitrogen fertilizers which can encourage leaf burn and reduce flowering

Composted banana peel tea:Soak fully composted banana peels in water for 24 hours, dilute 1:20 with water for root drenching; avoid raw peels to prevent pest infestations and odor
Pruning
  • Remove spent flower scapes after blooming to redirect energy to foliage growth
  • Trim yellowing or damaged leaves at the base in early spring or mid-summer
  • Divide overcrowded clumps every 3–5 years in early spring to maintain plant vigor
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; saponins cause vomiting, diarrhea, abdominal pain, and lethargy if ingested

Humans: Contains saponins; ingestion may cause mild gastrointestinal upset (nausea, diarrhea) in large quantities

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Garden Uses & Culture

Culture: Symbolizes devotion and quiet serenity in traditional Eastern floral traditions

Usage: Shade garden ornamental; fragrant cut flowers for indoor floral arrangements