Vaccinium tenellum aka Southern Blueberry

Vaccinium tenellum is a compact, low-growing deciduous shrub that typically reaches 30-80 cm (1-2.5 feet) in height with a spread of 60-90 cm (2-3 feet). The plant has a moderate growth rate and spreads through underground rhizomes to form open colonies over time. This colony-forming habit makes it excellent for naturalizing in native plant gardens and woodland edges.

Yes, Vaccinium tenellum produces charming clusters of bell-shaped (urceolate) flowers in spring, typically from March to May. The delicate blooms are white to pale pink, cylindrical in shape, and measure 5-10 mm in length. These flowers are highly attractive to pollinators, especially native bees and bumblebees, making this species valuable for pollinator gardens.

Vaccinium tenellum is pollinated by insects, primarily bees. The species is hermaphrodite, meaning each flower contains both male and female organs. Native bees and bumblebees are particularly effective pollinators of this and other Vaccinium species. The plant is classified as a pollinator plant and serves as a larval host for various butterfly species.

Vaccinium tenellum can be propagated by seed, cuttings, layering, or division. Seeds should be sown in late winter in lime-free compost and may require 3 months of cold stratification. Half-ripe cuttings (5-8 cm with a heel) can be taken in August, though this method is slow and difficult. Layering in spring or late summer takes about 18 months. The easiest method is division of suckers in spring or early autumn.

Vaccinium tenellum is exclusively an outdoor plant, native to the southeastern United States from Virginia to Florida and west to Mississippi. It thrives in USDA hardiness zones 5-9 and UK hardiness zone 6. Plant it in full sun to partial shade in acidic, well-drained soil. It is naturally found in dry woods, sandhills, pine barrens, and areas subject to periodic burning.

Vaccinium tenellum requires little to no pruning. Simply remove any dead or damaged branches in early spring before new growth begins. The plant naturally forms an attractive low, spreading habit. If the colony spreads more than desired, you can remove suckers to control its spread. In its native habitat, the species is adapted to periodic fire, which naturally rejuvenates the growth.

Vaccinium tenellum is notably resistant to honey fungus, a significant advantage over many other plants. The main pest concern is birds eating the berries, which can be managed with netting if fruit harvest is desired. Aphids and powdery mildew may occasionally occur.

Vaccinium tenellum is hardy in USDA zones 5-9, tolerating winter temperatures down to approximately -20°F (-29°C). It is also notably heat and drought tolerant once established, making it well-suited to the hot summers of its native southeastern United States range. The plant benefits from shelter from strong winds.

Vaccinium tenellum is deciduous and follows a natural seasonal cycle. In spring, enjoy the white to pink flowers from March to May. Summer brings fruit development, with small black berries ripening in late summer to early fall. The foliage turns attractive shades of red in autumn before leaf drop. Winter dormancy requires no special care in zones 5-9. Prune dead wood in early spring if needed.

Yes, the small black berries of Vaccinium tenellum are edible and can be eaten raw or cooked. However, they are generally considered to have poor taste and texture compared to cultivated blueberry varieties, with one botanical database rating edibility at just 1 out of 5 stars. The berries are more valuable as food for wildlife, particularly birds and small mammals, than for human consumption.

Yellow leaves on Vaccinium tenellum are almost always caused by soil pH that is too high. This species requires strongly acidic soil with a pH of 4.5-6.0. If lime is present or the soil becomes alkaline, the plant develops chlorosis—a condition where leaves turn yellow because they cannot absorb iron and other nutrients properly. Test your soil pH and amend with sulfur, peat moss, or pine bark to increase acidity.

Caring for Southern Blueberry is a breeze, as it is highly adaptable and forgiving to minor neglect.

Southern Blueberry’s native range is South-eastern N. America - Virginia to Georgia and Florida, west to Alabama.

Southern Blueberry should be watered regularly, allowing the soil to dry out between waterings.

Southern Blueberry loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

To ensure optimal growth, the Southern Blueberry prefers bright indirect light for 6-8 hours each day. Insufficient light can result in slow growth and leaf drop, so it's important to find a well-lit location for this plant. Place it near a window, within a distance of 1 meter (3 feet), to enhance its potential for thriving.

The Southern Blueberry grows at a slow pace and doesn't require any supplementary fertilizers. By renewing its potting soil once a year, it should receive enough nourishment. Remember, plants obtain their energy from sunlight, not fertilizers.

Ploi lacks confirmed information on the toxicity of this plant. If you, a relative, or your pet accidentally consume plant material with unknown toxicity, it's best to consult a medical expert.