Dumb Cane (Memoria Corsii Cultivar) (Dieffenbachia Memoria Corsii)

Dumb Cane (Memoria Corsii Cultivar)

Dieffenbachia Memoria Corsii

Variegated leaves blend calm cream and medium green, a classic low-fuss indoor foliage. Evergreen herbaceous perennial; common name: Dumb Cane.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Bright indirect light; avoid harsh midday direct sun to prevent leaf scorch; tolerates low light for short periods
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Watering Water when the top 2–3 cm of soil feels dry; avoid overwatering to prevent root rot and fungal growth
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Temperature Thrives at 18–24°C; avoid cold drafts and temperatures below 12°C, which can cause leaf yellowing and dieback
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Characteristics

  • Leaf: Oblong, leathery leaves with irregular cream variegation along midrib and margins; grow in an upright rosette
  • Stem: Thick, fleshy, upright green stem with visible leaf scars
  • Inflorescence: Spadix enclosed in a pale green spathe; rarely produced in indoor cultivation
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Care Guide

Watering

Keep soil slightly moist; allow the top 2 cm of soil to dry between waterings

Fertilization

Diluted balanced liquid feed every 2 weeks. Discontinue fertilization in autumn and winter when growth slows to avoid salt buildup in soil

Banana peel tea:Soak 2–3 chopped banana peels in 1 liter of water for 3 days; strain and dilute 1:20 with water before applying to soil to promote leaf health and variegation
Pruning
  • Remove yellowing or damaged leaves at their base to maintain plant appearance and reduce disease risk
  • Trim leggy stems in early spring to encourage bushier new growth
  • Repot and trim overgrown, tangled roots in spring to refresh soil and prevent root binding
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-confirmed toxic; ingestion leads to oral pain, hypersalivation, vomiting, and difficulty swallowing

Humans: Contains calcium oxalate crystals; ingestion causes oral and pharyngeal burning, swelling, and temporary speech impairment

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental indoor foliage for home and office decoration; valued for its low-maintenance variegated leaves