In Harborne, Cox established a steady routine – working in watercolour in the morning and oils in the afternoon. He would visit London every spring to attend the major exhibitions, followed by one or more sketching excursions, continuing the pattern that he had established in the 1830s. From 1844 these tours evolved into a yearly trip to Betws-y-Coed in North Wales to work outdoors in both oil and watercolour, gradually becoming the focus for an annual summer artists colony that continued until 1856 with Cox as its "presiding genius".