The recommended varieties for Arizona are Dillar, Hamlin and Marrs, all common oranges; Ruby, a blood orange; and Washington Navel. In California recommended varieties are Trovita and Valencia, common oranges: Torocco and Ruby, blood oranges; and Washington Navel. In Florida recommended varieties are Hamlin, Parson Brown, Pineapple and Valencia, common oranges; and Ruby. In Louisiana recommended varieties are Hamlin, Louisiana Sweet and Valencia, common oranges; and Ruby. And in Texas recommended varieties are Hamlin, Pineapple, Valencia and Ruby.

The clusters of 1-inch flowers, white or creamy white, are exceedingly fragrant. They usually appear most abundantly in the spring, but they may open at other seasons.

The varieties Marsh and Duncan have white flesh; Ruby and Redblush have pink flesh. Marsh is unique in that even when pollinated its fruit are nearly seedless. Most varieties ripen between late fall and early spring. One standard tree yields more than 400 pounds annually, a dwarf around 150 pounds.

A particularly good tree is Montmorency, 12 to 15 feet tall; Meteor, 10 to 12 feet tall, and North Star, 6 to 8 feet tall, also may be grown. All have 1-inch white blossoms and 3/4-inch red fruit. Trees of at least two varieties should be planted, for pollination of one variety by the pollen from another will usually increase the crop. Sour cherries live 30 to 40 years and each tree yields 1 to 2 bushels of fruit annually.

There are three basic kinds of oranges. The navel type is 3 to 4 inches in diameter, sweet-tasting, thick-skinned and often seedless; the common, or sweet, orange is about 23/4 inches in diameter with relatively thin, tight skin, a variable number of seeds and very juicy, sweet flesh; the blood orange is about 3 inches in diameter and has reddish skin, flesh and juice. Navel oranges usually ripen in early winter; common oranges may ripen at any season, but Valencia, the most widely grown common orange, matures in the summer; blood oranges usually ripen in the spring. Standard trees grow 20 to 25 feet tall, dwarfs 8 to 10 feet.

A navel orange standard tree yields about 500 pounds of fruit annually, a dwarf about 150. A common orange standard tree yields nearly 1,000 pounds annually, a dwarf about 250 pounds. A blood orange standard tree yields 300 to 400 pounds annually, a dwarf about 150 pounds.