🍎 Guava

Psidium guajava
fruits tree / shrub
Illustration of Guava
☀️ Sun
full sun
💧 Water
moderate (drought-tolerant once established)
🗺️ Zones
9-11
🪴 Soil Type
loamy, sandy, clay (tolerates poor soils)
🧪 Soil pH
5.0-7.0
💧 Drainage
well-drained
📏 Spacing
12-20 feet
📐 Height
10-30 feet
📅 Days to Maturity
730-1095 days (2-3 years to first fruit)

🍴 Edible Parts

🍽️ fruit (flesh🍽️ seeds🍽️ skin)🍽️ leaves (tea)

🤝 Companions (9)

Bananas provide wind protection and consistent soil moisture for guava, and their large leaves produce beneficial mulch
🤝 Pigeon Pea
Pigeon pea fixes nitrogen for guava, its deep roots mine nutrients from lower soil layers, and it provides a windbreak
🤝 Marigold
Marigolds repel nematodes that can attack guava roots and attract beneficial insects that prey on guava pests
🤝 Citrus Tree (General)
Citrus and guava are commonly intercropped in tropical orchards; guava may help repel some citrus pests through its aromatic foliage.
Guava and papaya are frequently grown together in tropical home gardens; they have complementary growth habits and fruiting seasons.
Sweet potato ground cover under guava trees retains moisture, suppresses weeds, and provides an additional food crop.
Ginger grows well in the partial shade beneath guava, sharing similar moisture and soil preferences.
Turmeric thrives as an understory crop under guava in humid tropical environments.
🤝 Pineapple
Pineapple tolerates the shade beneath guava trees and provides a low-growing secondary fruit crop.

⚠️ Keep Apart (3)

Eucalyptus produces allelopathic oils and aggressively competes for water, severely stunting guava growth
⚠️ Walnut (Black)
Juglone toxicity from walnut trees causes leaf yellowing, wilting, and death in guava plants
Sunflowers' dense root exudates inhibit guava root development and they compete heavily for soil moisture

💊 Medicinal Uses

Guava is exceptionally rich in vitamin C — one fruit provides more than four times the daily requirement — along with high levels of dietary fiber, vitamin A, folate, potassium, and lycopene (especially pink-fleshed varieties). Guava leaf tea is a traditional remedy for diarrhea and gastroenteritis, with clinical studies confirming its antidiarrheal and antimicrobial properties. The leaves contain quercetin and other flavonoids with blood sugar-lowering effects beneficial for diabetes management. Guava leaf extract has shown antibacterial activity against Staphylococcus aureus and E. coli. The fruit's high pectin content supports digestive health and cholesterol reduction.

📜 History & Traditional Uses

Guava originated in the tropical Americas, ranging from Mexico through Central America to Peru. Indigenous peoples cultivated guava for millennia before European contact. Spanish and Portuguese colonizers spread guava throughout the tropics in the 16th-17th centuries, and it became widely naturalized across Southeast Asia, India, Africa, and the Pacific Islands. In many regions, guava became so thoroughly naturalized that it is now considered indigenous. In Ayurvedic medicine, guava leaves are used for digestive disorders. The fruit is consumed fresh, juiced, and processed into jams, jellies, and pastes (such as the Latin American guayabate and Brazilian goiabada).

📝 Notes

Guava is one of the hardiest tropical fruit trees, tolerating poor soils, brief frost, and drought conditions that would kill other tropicals. It is a vigorous grower and can become invasive in tropical and subtropical regions — in Hawaii and Florida it is classified as an invasive species. Guava flowers are white, fragrant, and pollinated primarily by honeybees. The fruit varies from round to pear-shaped with white, yellow, pink, or red flesh depending on variety. Guava produces fruit year-round in tropical climates. The tree can be pruned heavily and responds well to container growing. It is highly attractive to fruit flies, which can be a significant pest issue.