Painted in 1910 at the height of Louis Valtat's mature period, "Les Roses de Bagatelle" captures the celebrated rose gardens of the Bois de Boulogne with a chromatic intensity that places Valtat firmly within the Post-Impressionist tradition he helped shape. Working at an intimate scale of just under 23 by 32 centimetres, the artist compresses a sense of botanical abundance into a composition that pulses with warm pinks, creams, and the deep verdant tones of foliage. The Bagatelle gardens were a favored subject among painters of the era, yet Valtat brings to the motif his characteristic directness of touch, applying pigment with a confidence that keeps the surface alive and immediate rather than decorative. Valtat's proximity to the Fauves, and his well-documented friendship with Renoir and Matisse, informed a coloristic freedom that reads clearly in works such as this one. The roses are rendered not through careful botanical observation but through a sustained emotional response to light and color, a quality that distinguishes his garden paintings from those of his contemporaries. That expressive commitment, combined with the modest and highly collectible dimensions of the panel, makes this an accessible yet historically significant example of his output. The work is fully documented in the catalogue raisonné "Louis Valtat, Catalogue raisonné de l'oeuvre peint," volume I, published in Paris in 1977, where it appears as catalogue number 861 on page 96 with illustration. Signed by the artist and presented in a period-appropriate frame, the painting offers collectors a well-provenanced entry point into the work of one of the most underappreciated colorists of early twentieth-century French modernism. It is currently available through Leighton Fine Art Ltd.