Arazá

Eugenia stipitata is native to the western Amazon region, primarily found in Brazil (Acre and Amazonas states), Colombia, Ecuador, and Peru.

• Its natural habitat is the non-flooded (terra firme) upland rainforests of the western Amazon basin
• Typically grows at elevations from 100 to 600 meters above sea level
• The species thrives in hot, humid tropical climates with annual rainfall of 2,000–3,500 mm
• It has been introduced to other tropical regions including parts of Central America and the Caribbean for evaluation as a potential commercial crop
• The genus Eugenia is one of the largest genera in the Myrtaceae family, comprising over 1,000 species distributed throughout tropical and subtropical regions worldwide

Eugenia stipitata is a small to medium-sized evergreen tree or shrub.

Tree Structure:
• Typically grows 3–12 meters tall in cultivation, though can reach up to 15 meters in the wild
• Crown is dense and rounded with multiple branches
• Bark is smooth to slightly rough, brownish in color

Leaves:
• Simple, opposite arrangement on the stem
• Elliptical to oblong shape, approximately 6–14 cm long and 3–6 cm wide
• Dark green and glossy on the upper surface, paler beneath
• Entire margins with a pointed (acuminate) apex
• Prominent pinnate venation typical of Myrtaceae
• When crushed, leaves emit a mild aromatic scent characteristic of the myrtle family

Flowers:
• Small, white, and fragrant
• Borne in axillary clusters (cymes or solitary)
• Approximately 1–2 cm in diameter with numerous prominent stamens
• Typical of Myrtaceae — flowers have an inferior ovary and numerous stamens giving them a fluffy appearance

Fruit:
• Berry, globose to slightly oblate in shape
• Approximately 3–7 cm in diameter
• Skin is thin, smooth, turning from green to bright yellow or orange-yellow when ripe
• Flesh is juicy, soft, and intensely acidic (pH typically 2.5–3.0)
• Contains 1 to several small, round seeds (~5–8 mm diameter)
• Fruit weight ranges from approximately 30–150 grams depending on variety and growing conditions
• Highly aromatic with a distinctive tropical fragrance

Eugenia stipitata is adapted to the environmental conditions of the western Amazon upland forests.

Climate Requirements:
• Thrives in hot, humid tropical climates
• Optimal temperature range: 22–28°C
• Requires high annual rainfall (2,000–3,500 mm) with good distribution throughout the year
• Does not tolerate frost or prolonged dry seasons

Soil Preferences:
• Prefers well-drained, acidic soils (pH 4.5–6.0)
• Commonly found growing in nutrient-poor, sandy to clay-loam soils in its native habitat
• Adapted to highly weathered tropical soils (oxisols and ultisols)

Ecological Role:
• Fruits are consumed by various birds and mammals, which serve as seed dispersers
• As an understory to mid-canopy tree, it contributes to forest structure and biodiversity
• Flowers attract pollinating insects including bees and other generalist pollinators

Arazá is cultivated on a small scale in parts of South America and is being evaluated as a potential commercial tropical fruit crop in various tropical regions.

Light:
• Performs best in full sun to partial shade
• Young plants benefit from some shade protection; mature trees fruit best in full sun

Soil:
• Requires well-drained, acidic soil (pH 4.5–6.0)
• Tolerant of poor, sandy, and lateritic soils typical of tropical regions
• Incorporation of organic matter improves growth and fruit production

Watering:
• Requires consistent moisture; does not tolerate waterlogging
• Supplemental irrigation may be necessary during dry periods, especially for young trees
• Mulching helps retain soil moisture and suppress weeds

Temperature:
• Optimal range: 22–28°C
• Sensitive to temperatures below 5°C; frost is lethal
• Best suited for USDA hardiness zones 11–12

Propagation:
• Primarily propagated by seed
• Seeds are recalcitrant (desiccation-sensitive) and should be sown fresh, as viability declines rapidly upon drying
• Germination typically occurs within 20–60 days
• Vegetative propagation through grafting and cuttings is possible and used to maintain desirable traits in superior selections
• Trees begin bearing fruit within 3–5 years from seed

Fertilization:
• Benefits from regular applications of balanced fertilizer during the growing season
• Organic fertilizers such as compost and well-rotted manure are well-suited

Common Challenges:
• Fruit fly infestations can be a significant pest problem
• Fungal diseases may affect fruit in very humid conditions
• The highly acidic nature of the fruit limits fresh consumption; most fruit is processed