25+ Mandarin Orange tree Seeds- Citrus reticulata Blanco - Order Track 1st Class Ship. Mandarin fruit trees planted in containers are ideal for small gardens and even balconies The mandarin orange, also known as the mandarin or mandarine, is a small citrus tree fruit. Treated as a distinct species of orange, it is usually eaten plain or in fruit salads. Tangerines are a group of orange-coloured citrus fruit consisting of hybrids of mandarin orange with some pomelo contribution. The Mandarin orange is an important symbol of the Chinese New Year. The small citrus looks like the sun. We only use USPS 1st class shipping with order tracking to insure prompt order delivery.