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Dieffenbachia

Dieffenbachia seguine

houseplant

verifiedReviewed by the GreenScout Team

Dieffenbachia is a popular, easy-to-grow tropical houseplant with large, variegated leaves in shades of cream, white, yellow, and green. Its attractive foliage and tolerance for indoor conditions make it ideal for beginners and offices. The plant grows vigorously and can reach 3–5 feet tall indoors, bringing tropical texture to any space.

Common Problems

Select the problem your Dieffenbachia is experiencing to get a treatment guide.

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Yellow Leaveschevron_right

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Brown Tipschevron_right

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Dropping Leaveschevron_right

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Leggy Growthchevron_right

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Pale Leaveschevron_right

Care Guide

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Light

Tolerates low to bright indirect light but grows best in medium to bright, filtered light. Variegated varieties need more light to maintain coloration. Avoid direct sun which can fade colors.

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Water

Water when top 1–2 inches of soil dry out. Keep soil moderately moist during growing season. Reduce watering in winter. Use room-temperature water. Overwatering causes root rot.

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Soil

Use general-purpose, well-draining potting mix. Dieffenbachias are not fussy but benefit from soil rich in organic matter.

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Fertiliser

Feed monthly during spring and summer with balanced liquid fertilizer at full strength. Reduce feeding in fall and winter.

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Temperature

Prefers 65–75°F (18–24°C). Tolerates typical indoor temperatures but avoid cold drafts below 60°F (15°C).

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Humidity

Adapts to average indoor humidity but thrives with moderate to high humidity (50–70%). Mist regularly or use a pebble tray.

Toxicity

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All parts contain calcium oxalate crystals and are mildly toxic. Ingestion causes burning mouth, throat pain, and swallowing difficulty. Wear gloves when handling and pruning.

Common Diseases

filter_dramaRoot Rotchevron_right grainLeaf Spotchevron_right

Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Why is Dieffenbachia called "Dumb Cane"?

The nickname comes from its toxic sap — if chewed, calcium oxalate crystals cause painful swelling of the mouth and throat that can temporarily impair speech, hence "dumb" in the old sense of being unable to talk.

Why is my Dieffenbachia getting leggy with bare lower stems?

This is common as the plant matures and lower leaves naturally shed. You can cut the cane back to encourage bushier regrowth, and the removed top can often be rooted as a new plant.