Purple Mango (Nam Dok Mai Si Mueng)

Nam Dok Mai Si Mueng (also spelled Namdokmai See Muang) is a rare, visually distinctive selection of the well-known Nam Dok Mai mango from Thailand. Its defining feature is the deep purplish skin, which contrasts with the traditional yellow-skinned Nam Dok Mai types.Fruit Characteristics

• Color: The skin develops a dark purple to deep violet hue at maturity, often accompanied by a light blush and natural speckles. The flesh remains golden-yellow.
• Taste and Texture: Rich, sweet, floral, and fragrant, with very low acidity and a buttery-smooth consistency typical of Nam Dok Mai varieties.
• Sweetness: High sugar content, averaging 22–25° Brix.
• Fiber: Very low, resulting in a silky texture ideal for fresh consumption.
• Size and Weight: Medium to large fruit, generally 300–500 grams.
• Seed: Small and thin (described as monoembryonic in some sources), maximizing edible flesh.
• Aroma: Distinctly tropical and floral, particularly pronounced when fully ripe.

CultivationClimate and Region
Best suited to tropical and subtropical climates. It requires warm temperatures, abundant sunlight, and a dry period to support fruit development. While well-adapted in Thailand, it can be grown in other Southeast Asian regions and comparable climates, such as southern India.Soil
Prefers well-drained sandy loam with good organic content. Optimal pH is slightly acidic to neutral (6.0–7.5).Watering
Provide regular irrigation during active growth. Reduce watering before flowering to encourage bloom. Avoid waterlogging to prevent root rot.Flowering and Fruiting
Flowers typically appear during the dry season (winter to early spring). Fruit matures in approximately 100–120 days after flowering. Trees can produce high yields under proper management.Pruning
Regular pruning maintains tree shape, improves airflow, and removes dead or weak branches after harvest.Pest and Disease Management
Monitor for common pests such as mango hoppers, mealybugs, and fruit flies. Employ integrated pest management (IPM), maintain orchard hygiene, and apply organic sprays as needed.Harvest
In Thailand, fruit is typically harvested from April to June, depending on location and flowering timing.SummaryNam Dok Mai Si Mueng is a premium mango valued for its exotic purple skin, honey-sweet flavor, and smooth, low-fiber flesh. It is well-suited for fresh eating and export markets and represents an attractive option for specialty mango orchards due to its distinctive appearance and strong commercial appeal.