Growing a soursop tree seedling (Annona muricata)—also known as graviola, guanábana, or guyabano—can be a fruitful endeavor in warm, tropical to subtropical climates. These trees produce large, green, spiky fruits with sweet, custard-like flesh and are valued for both culinary and medicinal uses.
Here’s a complete guide to help your soursop seedling grow strong and healthy:
🌱 How to Grow a Soursop Tree Seedling
1. Tree Overview
Scientific Name: Annona muricata
Common Names: Soursop, graviola, guanábana, guyabano
USDA Zones: 10–12 (can be grown in containers in colder zones)
Mature Size: 15–30 feet tall
Lifespan: Productive for 10–20+ years with good care
2. Ideal Growing Conditions
🌞 Light
Full sun is essential — minimum 6–8 hours/day
Avoid shade, which reduces fruiting.
🌱 Soil
Well-draining, loamy or sandy soil
Slightly acidic to neutral pH (5.5–7.0)
Avoid heavy clay or waterlogged soils
🌡️ Temperature
Thrives in warm temps: 70–85°F (21–29°C)
Sensitive to cold: avoid exposure below 40°F (4°C)
Young trees must be protected from frost and strong wind
3. Planting Instructions
📅 When to Plant
Best planted in late spring or early summer in warm climates
🕳️ How to Plant
Choose a sunny location with room to grow
Dig a hole twice as wide and deep as the root ball
Place the seedling upright and backfill with native soil mixed with compost
Water thoroughly to settle the soil
Mulch around the base to retain moisture and suppress weeds
📏 Spacing
Plant at least 15–20 feet away from buildings or other trees
4. Watering
Young seedling: Keep soil consistently moist, but not soggy
Mature trees: Water deeply once or twice a week depending on weather
Allow topsoil to dry slightly between waterings
Avoid overwatering — can lead to root rot
5. Fertilizing
Apply balanced fertilizer (10-10-10 or 8-8-8) every 2–3 months during the growing season
Incorporate organic compost annually for soil health
Reduce feeding during winter or dormant periods
6. Pruning & Maintenance
Prune in early spring to:
Remove dead, damaged, or crossing branches
Encourage bushier growth and airflow
Keep the canopy open for light penetration and pest control
7. Flowering & Fruiting
First fruiting: Typically 3–5 years after planting
Flowers: Yellow-green, waxy; may require hand pollination for better fruit set, especially in non-native areas
Fruits: Large (up to 12" long), green, spiny, ripen in 4–5 months after flowering
8. Pests & Diseases
Common issues:
Fruit flies
Mealybugs, scale insects, aphids
Anthracnose (fungal disease)
Prevention/Treatment:
Use neem oil or insecticidal soap for pests
Avoid overhead watering to reduce fungal problems
Improve airflow by proper spacing and pruning
9. Container Growing (For Colder Climates)
Use a large pot (at least 15–20 gallons)
Use lightweight, well-draining soil mix
Move indoors during cool months or when temps drop below 45°F (7°C)
Provide grow lights if indoors for extended periods
✅ Quick Tips
Loves warm, humid climates and full sun
Keep soil moist but not waterlogged
Hand pollination may be needed for fruit in non-native areas
Protect from cold and wind, especially while young
Use mulch and compost for root health and better yields