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Dumb Cane

Dieffenbachia maculataAlso known as: Leopard Lily, Dieffenbachia
Dumb Cane is a popular tropical foliage plant with large, oblong leaves featuring striking patterns of cream, yellow, and green. Native to the Caribbean and South America, it grows up to 6 feet (1.8 m) indoors. Its name comes from the toxic sap that can cause temporary speechlessness if ingested.
Easy Care
Medium Light
Perennial

Quick Care Summary

Light
Medium Light
Temperature Range
60-80°F (16-27°C)
Ideal Temp
70°F (21°C)

Seasonal Care Schedule

Adjust your care routine based on the season for optimal plant health.

Watering Schedule

SeasonSchedule
SpringEvery 7-10 days, when top inch (2.5 cm) of soil is dry
SummerEvery 5-7 days
FallEvery 10-14 days
WinterEvery 14-21 days

Misting Schedule

SeasonSchedule
Spring1-2 times per week
Summer2-3 times per week
Fall1-2 times per week
Winter1-2 times per week

Fertilizing Schedule

SeasonSchedule
SpringEvery 2-3 weeks with balanced liquid fertilizer
SummerEvery 2-3 weeks
FallMonthly
WinterNo fertilizing needed

Pruning

Frequency: As needed
Best Season: Spring or summer
Remove yellowing lower leaves. Wear gloves when handling - sap is highly irritating.

Repotting

Frequency: Every 2 years
Best Season: Spring
Use rich, well-draining potting mix. Go up one pot size when roots crowd container.

Flowering

Season
Rarely indoors
Color
Green and white spathe
May produce aroid-type flowers similar to peace lily, but rare in indoor conditions.

Propagation Methods

  • Stem cuttings in water or soil
  • Cane sections laid horizontally in soil
  • Air layering for larger plants

Common Problems

  • Yellow leaves: Usually overwatering
  • Brown leaf edges: Low humidity or underwatering
  • Leggy growth: Insufficient light
  • Leaf curling: Cold drafts or underwatering

Pro Tips

  • All parts are toxic - keep away from children and pets
  • Wear gloves when handling to avoid sap irritation
  • Can become leggy - prune to maintain bushy shape
  • One of the best plants for low to medium light areas

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Dumb Cane Care Guide - Watering, Light & Tips | AssistPlant