Codiaeum variegatum ‘Mammi’, more commonly known as the Croton Mammi, is one of the most colourful and striking tropical foliage plants, celebrated for its bold, twisted leaves and vibrant variegation. A member of the Euphorbiaceae family and native to Southeast Asia and the western Pacific, this variety is prized for its sculptural form and kaleidoscope of colours that bring instant tropical energy to any room.

The glossy, narrow leaves twist and curl along the stems, displaying a dazzling mix of green, yellow, orange, red, and deep burgundy hues. Each leaf is unique, often shifting in colour intensity as it matures. Compact in size but rich in character, Croton Mammi is perfect for adding drama and warmth to interiors or bright conservatories.

With its vivid, painterly foliage and upright habit, this plant is ideal for anyone looking to bring a splash of tropical flair to their home décor.

Codiaeum variegatum ‘Mammi’ – Care Guide

Light

Thrives in bright, indirect light. The more light it receives, the richer and more vibrant the leaf colouration will be. Avoid harsh direct sunlight, which can scorch the leaves, and low light, which causes duller, greener foliage.

Watering

Keep the soil lightly moist but not soggy. Water when the top 2–3 cm of soil feels dry, and ensure excess water drains freely. In winter, water less often but do not allow the soil to dry out completely. Crotons prefer consistent moisture levels.

Temperature and Humidity

• Temperature: Prefers warmth, 20–28°C. Avoid draughts and temperatures below 15°C.

• Humidity: Requires moderate to high humidity (50–70%) to maintain healthy foliage. Mist regularly or use a humidifier, especially during dry months.

Soil and Potting

Use a rich, well-draining, peat-free compost mixed with perlite or horticultural grit to improve drainage. Repot every 1–2 years in spring to refresh the soil and promote healthy root growth.

Feeding

Feed every 4–6 weeks in spring and summer with a balanced liquid fertiliser, diluted to half strength. Pause feeding in autumn and winter.

Pruning and Maintenance

Remove any yellowing or damaged leaves to encourage new growth. Lightly prune leggy stems in spring to maintain a compact shape. Wipe the glossy leaves with a damp cloth to keep them clean and enhance their vibrant shine.

Growth and Maturity

A moderate grower, typically reaching 60–90 cm tall indoors. Over time, it forms an upright, bushy plant with a dense cluster of colourful, twisted leaves that seem to dance in the light.

Common Issues

• Leaf drop: Caused by sudden temperature changes, low humidity, or overwatering.

• Dull colouration: Insufficient light.

• Brown edges: Low humidity or hard tap water — use filtered or rainwater if possible.

• Pests: Occasionally mealybugs, thrips, or spider mites — wipe regularly and inspect under leaves.

Background and Benefits

Crotons (Codiaeum variegatum) have been beloved ornamental plants for centuries, valued for their bright colours and intricate leaf shapes. The ‘Mammi’ cultivar is particularly distinctive, with its curly, compact foliage and rainbow palette that intensifies in sunlight.

In addition to its visual appeal, Croton Mammi helps to enhance interior wellbeing by introducing vivid natural colour — proven to boost mood and reduce stress. Its sturdy form also makes it suitable as a feature plant in bright living spaces or tropical-themed interiors.

✅ Quick Care Summary

• Light: Bright, indirect; tolerates some gentle sun

• Water: Lightly moist; allow topsoil to dry slightly

• Temperature: 20–28°C; protect below 15°C

• Humidity: Moderate to high (50–70%)

• Soil: Rich, well-draining compost

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

• Growth: Upright, compact plant, 60–90 cm; glossy twisted leaves in red, green, orange, and yellow

⚠️ Toxicity Note: Like all Crotons, Codiaeum variegatum ‘Mammi’ is toxic if ingested and may produce a sticky sap that irritates skin. Handle with care and keep away from pets and children.

🌿 Styling Tip:
Display Croton Mammi in a bright room or near a window where its colours can shine. Pair it with deep green tropicals like Ficus ‘Melany’ or Philodendron ‘Congo Green’ for a dynamic, contrasting display of textures and tones.