Foster's Dyckia (Dyckia fosteriana)

Foster's Dyckia

Dyckia fosteriana

Sharp, silvery foliage forms rosettes of rugged desert charm. Evergreen xerophytic succulent; common name: Foster's Dyckia.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full direct sunlight for most of the day; tolerates partial shade during extreme midday heat
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Watering Allow soil to dry completely between waterings; avoid overwatering to prevent root rot
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Temperature Thrives in warm, arid conditions; protect from frost below 10°C to prevent leaf damage
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Characteristics

  • Leaf: Rigid, triangular leaves with sharp spines along margins; silvery-green with white trichomes
  • Flower: Tall, branching inflorescence with small, bright orange tubular flowers
  • Stem: Short, compact stem hidden within the rosette base
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Care Guide

Watering

Water thoroughly when soil is completely dry; reduce frequency during extended rainy periods

Fertilization

Diluted cactus fertilizer once monthly. Use low-nitrogen, phosphorus-rich diluted feed to support flowering and root health

Eggshell powder topdress:Crush dried eggshells into fine powder; sprinkle lightly on soil surface to add calcium without burning delicate succulent roots
Pruning
  • Remove dried, brown outer leaves to maintain a tidy rosette shape
  • Trim spent flower stalks after blooming to redirect energy to new offset growth
  • Thin overcrowded offsets in spring to improve airflow and prevent overcrowding
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no known toxic compounds

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

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental succulent for rock gardens, container displays, or xeriscaping