Water
Keep the soil consistently moist but not waterlogged. Allow the top 2-3 cm of soil to dry out between waterings. Reduce watering frequency during the winter months to prevent root rot.
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Dieffenbachia tonduzii, or Giant lily, is a striking tropical plant with large, ovate leaves, often adorned with patterns. It thrives in warm, humid environments.
At-a-glance light, water, soil, and growing conditions from plant data
Bright, indirect light
50% intensity
Avoid direct sunlight, which can scorch leaves. Tolerates lower light but growth will be slower.
Keep soil moist
50% intensity
Allow top 2-3 cm to dry between waterings. Reduce in winter.
Well-draining potting mix
50% intensity
Average room temperature
50% intensity
Thrives between 18-24°C. Protect from drafts and sudden temperature drops below 15°C.
Indoor
50% intensity
During growing season
50% intensity
Feed every 2-3 weeks with diluted balanced liquid fertilizer from spring to summer. None in fall/winter.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 5/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
Toxic if ingested or sap contacts skin
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep the soil consistently moist but not waterlogged. Allow the top 2-3 cm of soil to dry out between waterings. Reduce watering frequency during the winter months to prevent root rot.
Prune to maintain shape and size, or to remove yellowing or damaged leaves. Use clean, sharp tools. You can also prune to encourage bushier growth by cutting back stems just above a node.
Easily propagated from stem cuttings. Cut a section of stem about 10-15 cm long, ensuring it has at least one node. Remove lower leaves and plant in moist potting mix or water.
Repot every 1-2 years, or when the plant becomes root-bound. Choose a pot that is 2-5 cm larger in diameter than the current one. Use a well-draining potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Giant Lily (Dieffenbachia tonduzii)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Alismatales |
| Family | Araceae |
| Genus | Dieffenbachia |
| Species | Dieffenbachia tonduzii |
Similar in genus Dieffenbachia
Answers based on plant encyclopedia data
