The vividly colored flowers of the dwarf pomegranate (Punica granatum var. nana) makes it a lovely ornamental shrub that grows 3 to 4 feet tall and wide, occasionally to 6 feet. If the growing season is long, these blossoms can become golf ball-size, with edible but dry fruits. Native to much of southern and western Asia, the pomegranate is hardy in warm regions, USDA zones 8 to 10, but this dwarf variety is slightly more cold-hardy, surviving winters in Zone 7 with some leaf burn or twig die-back. Full sunlight, summer heat and a well-draining, fertile soil are keys to having a healthy plant.
Determine your plant hardiness zone (see Resource 1). If you live in zones 7 through 12, the dwarf pomegranate may be the perfect plant to grow in your garden outdoors.
Find a location in the garden where the pomegranate will receive partial to full sun, no less than six hours of direct sunlight daily. In very hot climates, partial or dappled shade in the hottest part of the summer afternoon is beneficial.
Examine the soil. Ensure that it is has fertility and is well-draining. Water after rainfall or irrigation events should not puddle in the spot where a pomegranate grows.
Add organic matter to dry, sandy soils or compacted clay soils to improve its tilth and texture. Incorporate it into the soil to a depth of 8 to 12 inches.
Prune the dwarf shrub to remove dead or diseased stems or foliage. The perfect time for tip-pruning to shape the shrub is late winter to early spring, just before new buds break and open.
Fertilize lightly if desired each spring with a granular, slow-release fertilizer according to doses outlined on the product's label directions. Don't overfertilize, as overly rich soil can cause lots of leafy growth at the expense of an abundance of flowers. Fertilizing is more important in sandy soils.