The center also contains a small arboretum of Sciadopitys verticillata (Umbrella Pine), Chamaecyparis pisifera Squarrosa (Moss Sawara Cypress), Chamaecyparis pisifera Plumosa (Plume False Cyprus), Pinus densiflora 'Umbraculifera' (Japanese Umbrella Pine), Fagus sylvatica 'Atropunicea' (Purple Beech), Fagus sylvatica 'Pendula' (European Weeping Beech), Cercis canandensis (Eastern Redbud), Acer palmatum 'Dissectum-Pendula', Pinus cembra (Swiss Stone Pine) and Picea apies 'Repens' (Weeping Norway Spruce).
New Canaan Nature Center features many nature programs throughout the year, including the Fall Fair every October, and maple sugaring celebrations in early spring.