Roi de Siam (King of Siam) Class: Tea, Tea, Cl.. Breeding: Bred in France (1825) by Jean Laffay.
Jean Laffay is generally recognized as the creator of the Hybrid Perpetuals or, as he knew them, the Hybrides Remontants. Perhaps his greatest triumph is the rose 'La Reine'.
Laffay was born in Paris in 1794 and began his horticultural career as gardener to a nurseryman by the name of Ternaux. His main period of activity was from 1837 to 1855 in Bellevue-Meudon, near Paris, where he raised hundreds of thousands of seedlings each year in an effort to obtain hardy, repeat-blooming roses.
His early introductions were mostly Chinas and Teas such as 'Bengale d'Automne' (1825) and 'Mme. Desprez' (1835), his later ones mostly Hybrid Perpetuals, Bourbons and Mosses of which 'Great Western' (1858) and 'Gloire des Mousseux' (1852) are still widely grown.
Chulalongkorn rose has a long, straight stem like that of Mon rose. It is thronless and larger than Mon rose with dark pink color. Chulalongkorn rose is the favorite flower of H.H Princess Chao Dara Rasmi Phra Raja Jaya, the royal consort of H.M. King Chulalongkorn (King Rama V). She had the roses planted in the garden of Dara Pirom Palace in Mae Rim Distrct, Chiangmai. She also named it "Chulalongkorn" in the remembrance of her beloved royal husband.
Quantity of stamps : 1,000,000 stamps
Composition : 10 stamps per sheet