San Diego, with its Mediterranean climate, is conducive to growing a variety of fruit trees, many of which are sustainable and well-suited to the region's climate. Indigenous fruit trees are those that are native to the area, while sustainable trees are those that are particularly well-adapted to the local conditions, requiring less water and maintenance. Here’s a list combining both indigenous and sustainable fruit trees for the San Diego area which we will be planting:

Indigenous Fruit Trees

California Wild Plum (Prunus subcordata): A native plum tree that produces small, sweet fruit.

Western Hackberry (Celtis occidentalis): Produces small, sweet berries and is native to the region.

Pacific Crabapple (Malus fusca): Offers small, tart apples and is native to the Pacific Coast.

Hollyleaf Cherry (Prunus ilicifolia): A native cherry tree with small, edible fruits.

Sustainable Fruit Trees

Fig Trees (Ficus carica): Well-adapted to San Diego's climate, fig trees require minimal water once established.

Pomegranate Trees (Punica granatum): Thrive in hot, dry climates and are drought-tolerant.

Olive Trees (Olea europaea): Highly adaptable to San Diego's climate, requiring less water.

Citrus Trees: Including oranges, lemons, limes, and kumquats, these trees do well in San Diego’s climate.

Loquat (Eriobotrya japonica): A tree well-adapted to the region, producing sweet, tangy fruits.

Avocado Trees (Persea americana): While they require more water, they are well-suited to the climate in San Diego.

Peach Trees (Prunus persica): Varieties like the desert peach are adapted to drier conditions.

Almond Trees (Prunus dulcis): Almonds grow well in San Diego’s climate, though they do need a fair amount of water.

Apple Trees: Certain drought-resistant varieties can be sustainable choices for the region.