Verawood

Binomial name

Bulnesia arborea

Common names

Desert Ironwood, Palo Santo, Verawood

Description

Bulnesia arborea is a slow-growing, evergreen tree native to the arid regions of South America, particularly found in the semi-desert areas of the Gran Chaco. Known for its extremely hard, dense wood, this tree is valued for its durability and resistance to decay, making it useful in crafting furniture and other high-durability items. The tree has small, leathery leaves and produces yellowish-green flowers that attract pollinators. Its aromatic wood also gives off a pleasant scent when burned, earning it the name "Palo Santo" in some areas. This tree thrives in dry, rocky soils and is well-suited to xerophytic conditions, requiring minimal water once established.

Light requirements

Bulnesia arborea thrives in full sun and requires ample sunlight to grow well. The tree prefers bright, open areas where it can receive direct sunlight for most of the day, which helps it to develop a strong and dense structure.

Soil preferences, including pH and drainage

This species prefers well-draining, rocky or sandy soils. Bulnesia arborea is tolerant of poor soils and can adapt to arid conditions, though it prefers slightly acidic to neutral pH (6.0–7.5). The tree can grow in soils with low organic content but benefits from good drainage to prevent waterlogging, which can negatively affect root health.

Water needs

Once established, Bulnesia arborea is drought-tolerant and requires minimal watering. It should be watered moderately during the growing season, but overwatering can lead to root rot. During dry periods, the tree can survive with little to no additional watering, though young trees may need more consistent moisture until they are established.