Cymbidium Suan Luang ‘Singharaj’ is a heat tolerant cymbidium derived from 3 species from Thailand; 25% of Cym. ensifolium from the lower NE. region, 25% of Cym finlaysonianum from the South and 50% of Cym seidenfadenii (formerly known as Thai insigne) from Phu Luang Mountain. Suan Luang ‘Sinharaj’ is the most outstanding seedling from the cross with high heat tolerance (in full bloom on 1st August in Bangkok). Around 15 flowers are well arranged on the first upright spike.