Croton Mammi (Codiaeum variegatum ‘Mammi’) is one of the most colourful and sculptural houseplants available. Native to the tropical regions of Southeast Asia and the western Pacific, it belongs to the Euphorbiaceae family and is celebrated for its vividly variegated foliage and dramatic leaf shapes.

The plant features glossy, twisted, and slightly curled leaves in a dazzling mix of green, yellow, orange, red, and deep burgundy. Each leaf is unique, creating a constantly changing tapestry of colour. The twisting leaf form gives the plant a lively, almost animated appearance, making it an excellent statement piece for modern homes and bright interiors.

Compact and upright in habit, Croton Mammi brings tropical warmth and energy to indoor spaces. With good light, its colours intensify beautifully, rewarding regular care with vibrant, year-round displays.

Codiaeum variegatum ‘Mammi’ – Care Guide

Light

Requires bright, indirect light to maintain its rich colours. Some gentle morning or late-afternoon sun enhances variegation, but avoid strong midday sunlight, which can scorch the leaves. Low light will cause colours to fade.

Watering

Keep the soil lightly moist, watering when the top 2–3 cm feels dry. Do not let the soil dry out completely, but ensure the pot drains freely to avoid waterlogging. Reduce watering slightly in winter.

Temperature and Humidity

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

• Humidity: Requires moderate to high humidity (60–80%) to prevent leaf drop and browning. Mist regularly or use a humidifier, especially in heated homes.

Soil and Potting

Use a rich, well-draining peat-free compost. Mix in perlite or horticultural grit to improve drainage. Repot every 1–2 years in spring to refresh the soil and maintain vigorous growth.

Feeding

Feed every 4–6 weeks during spring and summer with a balanced liquid fertiliser. Stop feeding in autumn and winter when growth slows.

Pruning and Maintenance

Prune lightly to maintain shape and encourage bushier growth. Remove any yellow or damaged leaves. Rotate the plant regularly for even light exposure and colour development.

Growth and Maturity

A moderate grower that typically reaches 60–90 cm indoors. Its upright stems and narrow, twisted leaves make it a compact yet eye-catching feature plant.

Common Issues

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

• Faded colours: Insufficient light.

• Yellowing leaves: Overwatering or poor drainage.

• Pests: Occasionally mealybugs, thrips, or spider mites.

Background and Benefits

Crotons (Codiaeum variegatum) are known for their dazzling foliage and tropical vibrancy. The ‘Mammi’ cultivar is particularly popular for its twisted leaves and compact size, which make it easier to accommodate indoors. It’s the perfect plant for those who love colour and want a living focal point that brightens any space year-round.

✅ Quick Care Summary

• Light: Bright, indirect; tolerates gentle sun

• Water: Lightly moist; avoid soggy soil

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

• Humidity: Moderate to high (60–80%)

• Soil: Rich, well-draining compost

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

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