Growing orange (sweet)

citrus

Pollination

Self-fertile. Navel oranges are seedless and need no pollinizer.

Growing it

Zones 9-11; needs sustained heat to sweeten. Blood oranges colour best where nights turn cool in winter. Slow to bear from a young tree.

Chill and pollination are given at the fruit-type level; specific cultivars can differ. Values are typical ranges for home-garden planning.