The Cast Iron Plant lives up to its name — nearly indestructible, this evergreen perennial is prized for its toughness and rich green foliage. Native to Japan and China, it thrives where other plants struggle: deep shade, poor soil, dry conditions, or even neglect. Indoors or out, it’s a reliable, low-maintenance choice that adds a bold, elegant touch to any space.
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Type: Evergreen perennial
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Mature Size: 1–2 ft. tall × slowly spreading clumps
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Growth Habit: Rhizome-forming, clumping, slowly spreads into dense groundcover
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Exposure: Thrives in deep to partial shade; avoid strong direct sun indoors
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Soil: Prefers rich, well-drained soil but adapts to almost anything
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Water Needs: Moderate — water deeply, allow to dry slightly between waterings
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Hardiness: USDA Zones 8–10; protect below 50°F
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Maintenance: Very low; rarely needs repotting