In May 1889 Van Gogh voluntarily entered the asylum of St. Paul near Saint-Rémy in Provence. There Van Gogh had access to an adjacent cell he used as his studio. He was initially confined to the immediate asylum grounds and painted (without the bars) the world he saw from his room, such as ivy covered trees, lilacs, and irises of the garden. Through the open bars Van Gogh could also see an enclosed wheat field, subject of many paintings at Saint-Rémy. As he ventured outside of the asylum walls, he painted the wheat fields, olive groves, and cypress trees of the surrounding countryside, which he saw as "characteristic of Provence." Over the course of the year, he painted about 150 canvases.