The King Mandarin, also known as King of Siam, technically a tangor, is a large, late-season citrus hybrid between a mandarin and a sweet orange, originating from Southeast Asia. It produces large fruit with a thick, rough, yellow-orange rind and deep orange, tender flesh. The flavor is rich, aromatic, and sweet-tart with a bold citrus character, making it especially valued for juicing. This moderately vigorous and productive tree performs best in warm climates, where sufficient heat is needed to develop its full flavor.
 
Tree size: 10 – 20 ft tall (can be kept smaller with pruning or containers)
Fruit size: Large
Seeds per fruit: 10 - 25+
Harvest season: Late winter - Spring
USDA Zones: 9 – 11
Requirements: Full sun, well-drained soil, and regular watering.