General pomegranate can fruit alone, but it still benefits from a partner. Most pomegranates can fruit alone, but two plants often improve fruit set and crop consistency. It flowers in late bloom, which is worth knowing if you add a second tree later. Usually grown in USDA zones 7-10.
No single variety stands out as the obvious partner, but that is not a problem here: Second nearby pomegranate all bloom close enough to work. Pick whichever your nursery actually carries. If you plant more than one pomegranate, keep them close enough for bees to work both during the same bloom period.
One thing to keep in mind. Most pomegranates are self-fertile. Extra plants can improve fruit set, but one plant can still crop on its own. Most garden pomegranates can fruit alone, but a nearby second plant can still improve the crop.
To put that into practice: at a minimum, one pomegranate is usually enough for fruit. Better still, plant two pomegranates if you want a stronger backup and the best chance at fuller fruit set. If one plant is flowering but fruit set is light, improve heat, sunlight, and pollinator activity first, then consider adding a second plant.
