Foster's Earth Star (Cryptanthus fosterianus)

Foster's Earth Star

Cryptanthus fosterianus

Its rosette unfurls like a starburst of striped green. Evergreen bromeliad foliage plant; common name: Foster's Earth Star.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Bright indirect light; low light conditions will reduce the intensity of leaf striping
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Watering Water the central rosette cup lightly; allow the surrounding soil to dry slightly between waterings to prevent rot
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Temperature Thrives at 18–27°C; avoid frost and prolonged exposure to temperatures below 10°C
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Characteristics

  • Leaf: Sword-shaped leaves with creamy white longitudinal stripes on dark green; edges have tiny, soft spines
  • Flower: Small white or pale pink blooms clustered in the central rosette cup
  • Stem: Short, concealed within the tight rosette structure
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Care Guide

Watering

Keep central cup filled with 1–2 cm of distilled or rainwater; maintain slightly moist soil

Fertilization

Diluted balanced liquid feed every 4 weeks. Apply fertilizer to soil only; avoid getting solution in the central rosette cup

Banana peel tea:Soak 1 chopped banana peel in 1L of filtered water for 24 hours; strain and dilute 1:2 before applying to soil; avoid contact with leaf surfaces
Pruning
  • Trim browned leaf tips with sharp, sterile scissors to maintain neat appearance
  • Remove spent flower stalks once blooms fade to redirect energy to foliage growth
  • Gently pluck outer dead leaves to improve airflow around the rosette
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no adverse reactions expected from ingestion or contact

Humans: No known toxic effects on humans; safe for handling and accidental ingestion

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental tabletop plant; ground cover in tropical shade gardens; terrarium specimen