Psidium guineense, commonly known as Brazilian guava, is a small tropical fruit tree native to tropical America from Mexico to Argentina. This evergreen species produces distinctive acidic fruits prized for jams, jellies, and beverages. Seeds germinate readily with warm temperatures and consistent moisture, making it relatively easy to propagate from seed.
Before sowing
Pre-treatment is optional but recommended. Soak seeds in clean water for 24 hours at 20-30°C. Light mechanical scarification can be applied but is not essential. Scientific studies show that seed germination and seedling growth are not significantly affected by pre-germination treatments
Sowing
What to expect
Tips
Ensure consistent soil moisture but avoid waterlogging to prevent fungal issues. Maintain excellent air circulation around seedlings. Keep container in warm (75-85°F/24-29°C), bright location with indirect sunlight. Staggered germination is normal; seeds may sprout over several weeks. Once seedlings develop several true leaves and are well-established, transplant carefully as young roots are delicate. This hardy species adapts well to various soil types and becomes drought-tolerant once established.
Sources: Agrociencia Uruguay (2014); SciELO Brazil; EMBRAPA; Tradewinds Fruit; Plant Flower Seeds; Wikipedia; Plants of the World Online (Kew)
