Pineapple (Ananas comosus)

Pineapple

Ananas comosus

Its rosette of spiky leaves holds a sun-kissed fruit, tropical sweetness in a compact form. Herbaceous perennial; common name: pineapple.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Requires full sun for optimal fruit production; tolerates bright indirect light for foliage-only growth
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Watering Fill the central rosette cup with water; allow soil to dry slightly between soil waterings to prevent root rot
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Temperature Thrives in warm tropical temperatures; avoid exposure below 10°C to prevent leaf browning and stunted growth
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Characteristics

  • Leaf: Long, rigid sword-shaped leaves with sharp marginal spines; gray-green to deep green foliage
  • Flower: Dense cylindrical inflorescence of purple-red florets; develops into a fleshy composite fruit post-blooming
  • Stem: Short, thick central stem concealed within the leaf rosette
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Care Guide

Watering

Keep central cup filled with fresh water; water soil when top 2–3 cm is dry

Fertilization

Diluted balanced liquid feed every 2 weeks. Cease fertilization in autumn and winter when growth slows

Banana peel compost tea:Use fully composted banana peels steeped in water for 24 hours; dilute 1:20 for root drench to avoid pest infestations
Pruning
  • Remove dead or browning outer leaves to maintain rosette shape and improve airflow
  • Trim spent fruit stalks after harvest to encourage offset (pup) growth
  • Separate 15–20 cm tall pups for propagation in spring
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no adverse effects from ingestion of leaves or ripe fruit

Humans: No known systemic toxicity; ripe fruit is edible, though unripe fruit may cause mild mouth irritation from bromelain enzymes

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Garden Uses & Culture

Culture: Symbolizes hospitality and warmth in tropical and Western cultures

Usage: Edible fruit production; ornamental rosette foliage for gardens and indoor displays