Codiaeum variegatum ‘Mammi’, commonly known as the Croton Mammy or Curly Croton, is a vibrant tropical houseplant adored for its flamboyant, multi-coloured foliage and sculptural, twisting leaves. A member of the Euphorbiaceae family and native to the tropical forests of Indonesia and the Pacific Islands, this bold variety brings a burst of colour and energy to indoor spaces — a living expression of tropical exuberance.

The glossy, narrow leaves curl and twist along the stem, displaying an ever-changing palette of deep green, bright yellow, fiery orange, and rich red. Each leaf is unique, creating a lively, painterly effect reminiscent of abstract art. As the plant matures, the colours deepen and intensify, making Codiaeum ‘Mammi’ a dynamic focal point that evolves beautifully over time.

Compact, dramatic, and full of personality, the Croton Mammi is perfect for adding warmth, texture, and colour to homes, offices, or conservatories — a tropical showpiece that commands attention year-round.

Codiaeum variegatum ‘Mammi’ – Care Guide

Light

Thrives in bright, indirect light to full sun. The more light it receives, the more vibrant its colours become. Too little light may cause fading and dull, greenish foliage. Gradually acclimatise to stronger light to prevent sunburn on new leaves. A bright south- or west-facing window is ideal.

Watering

Water when the top 2–3 cm of soil feels dry. Keep the soil consistently moist during spring and summer but never waterlogged. Reduce watering in winter and allow the top layer of soil to dry slightly more between waterings. Use lukewarm, filtered water to prevent shock.

Temperature and Humidity

Temperature: Prefers warmth between 18–28 °C. Avoid cold drafts, sudden temperature drops, or air conditioning vents — Crotons are sensitive to cold and may drop leaves if chilled.
Humidity: Moderate to high humidity (50–70%) enhances leaf gloss and colour. Mist regularly, use a humidifier, or group with other tropical plants to maintain humidity.

Soil and Potting

Use a rich, well-draining mix — compost blended with perlite and a little sand works perfectly. Repot every 1–2 years in spring to refresh nutrients and allow space for root growth. Choose a pot with good drainage holes to prevent standing water.

Feeding

Feed every 4–6 weeks during spring and summer with a diluted, balanced liquid fertiliser. Suspend feeding in autumn and winter. Over-fertilising can cause leaf edge burn, so feed lightly but consistently during the active growing season.

Pruning and Maintenance

Prune leggy or damaged stems in spring to encourage bushier growth. Wipe leaves regularly with a soft, damp cloth to remove dust and maintain their shine. Rotate the plant occasionally to ensure even light exposure and uniform colour development.

Growth and Maturity

A moderate grower indoors, Codiaeum ‘Mammi’ typically reaches 60–90 cm in height and spread. With good light and care, it forms a dense, upright shrub with tightly curled, vividly coloured leaves. Over time, it may produce small, star-shaped flowers, though it’s primarily grown for its decorative foliage.

Common Issues

• Leaf drop: Often caused by cold drafts, relocation, or sudden changes in watering.

• Dull or green leaves: Insufficient light.

• Brown tips: Low humidity or inconsistent watering.

• Pests: Occasionally affected by spider mites or scale insects — treat with neem oil and maintain humidity.

Background and Benefits

Native to the tropical Pacific and Southeast Asia, Codiaeum variegatum has long been cultivated for its vivid foliage and cultural symbolism. In many tropical regions, Crotons represent prosperity, positive energy, and protection — making them popular choices for homes and gardens.

Though primarily ornamental, Codiaeum ‘Mammi’ also helps to improve indoor air quality by filtering airborne toxins. Its compact size and brilliant colouring make it an ideal plant for bringing tropical vibrancy into any environment.

Quick Care Summary

• Light: Bright, indirect to full sun

• Water: Keep soil evenly moist; allow top few cm to dry

• Temperature: 18–28 °C; avoid below 15 °C

• Humidity: Moderate to high (50–70%)

• Soil: Rich, well-draining mix – compost, perlite, sand

• Feed: Every 4–6 weeks in spring/summer

• Growth: 60–90 cm; twisted leaves in green, yellow, orange, and red tones

⚠️ Toxicity note: Toxic to pets and humans if ingested; sap may cause skin irritation.

Styling Tip

Showcase Codiaeum ‘Mammi’ as a statement accent plant in bright rooms where its kaleidoscopic foliage can truly shine. It pairs beautifully with green-leaved species like Ficus elastica ‘Robusta’ or Philodendron ‘Imperial Green’ for contrast. Use a neutral or dark ceramic pot to make its colours pop, or incorporate it into a mixed tropical arrangement for vibrant diversity. Perfect for modern, eclectic, or bohemian interiors, this Croton brings warmth and a joyful burst of life to any space — a living celebration of colour and form.