Annona squamosa, commonly known as Sugar Apple or Sweetsop, is a tropical fruit tree native to the tropical Americas and Caribbean region. Seeds have a naturally hard seed coat that requires mechanical scarification combined with soaking to achieve optimal germination rates of 70-80% within 2-4 weeks under warm conditions.
Before sowing
Combine mechanical scarification with water soaking for optimal results. Scarify seeds around edges and at hilum point, then soak in lukewarm water for 24 hours before planting
Sowing
What to expect
Tips
Use indirect sunlight or artificial grow lights to avoid overheating; mist soil regularly to maintain consistent moisture without waterlogging. Provide bottom heat (75-85°F / 24-29°C) for best results. Seedlings develop quickly and should be moved to larger containers when several true leaves appear. Maintain constant humidity during the germination period. Fresh seeds germinate faster; seed viability decreases significantly after 6 months of storage.
Sources: PFAF (Plants for a Future), Gardenia.net, Balcony Garden Web, research publications on Annona squamosa seed pretreatment
