At this point renowned gardener Joseph Paxton became interested in the project, and with the enthusiastic backing of commission member Henry Cole, he decided to submit his own design. At this time, Paxton was chiefly known for his celebrated career as the head gardener for the Duke of Devonshire at Chatsworth House. By 1850, Paxton had become a preeminent figure in British horticulture and had also earned great renown as a freelance garden designer; his works included the pioneering public gardens at Birkenhead Park which directly influenced the design of New York's Central Park. At Chatsworth, he had experimented extensively with glasshouse construction, developing many novel techniques for modular construction, using combinations of standard-sized sheets of glass, laminated wood, and prefabricated cast iron. The "Great Stove" (or conservatory) at Chatsworth (built in 1836) was the first major application of his ridge-and-furrow roof design, and was at the time the largest glass building in the world, covering around .