Calamondin Orange (Citrus mitis) A delightful, ornamental tree, calamondin orange produces tangerine- or orange-like fruit even when small. Flowers smell sweet. Light Place in high light (full sun) year-round. Move into full sun outdoors in summer over a period of 14 days. Water Allow soil surface to dry out between thorough waterings. Mist. Raise humidity. Temperature Maintain temperatures in the low 70s during the day and no less than 50 degrees at night. Avoid frost at all costs. Comments Fertilize monthly in spring and summer. Prune to desired height and shape in spring. Keep leaves clean. Propagate by cuttings taken from newer growth (not old, hard stem) in early spring. Propagation by seed is difficult and is not recommended for home gardeners.