Coffea arabica 'Castillo' is a disease-resistant hybrid variety developed by Colombia's Cenicafé research center, now the most widely planted coffee in Colombia. Seeds germinate slowly and require consistent warmth, high humidity, and well-drained soil, with germination typically occurring 30-90 days after sowing depending on temperature and moisture conditions. This variety is prized for its rust resistance and balanced flavor profile of citrus, chocolate, and caramel notes.
Before sowing
Seeds should be freshly processed, with moisture content kept between 15-22% for optimal germination. Use fresh seeds as viability decreases significantly within three months.
Sowing
What to expect
Tips
Keep seeds moist but never waterlogged to prevent damping-off disease. Use a humidity dome or plastic covering during germination. Maintain constant temperatures between 25-30°C for optimal results. Seeds are moisture-sensitive and lose viability rapidly; use fresh seeds and avoid over-drying. Pre-soaked seeds should be sown immediately after soaking. Do not expose seeds to direct sunlight during germination; keep in bright, indirect light. Consider using a heat mat to maintain optimal temperature. Once germination begins (radicle emergence visible), gradually introduce seedlings to fresh air by removing the humidity dome for increasing periods over 1-2 weeks.
Sources: Plant World Seeds, Sweet Maria's Coffee Library, FAO Arabica Coffee Manual, Incredible Seeds, research on Coffea arabica L. var. Castillo seed viability and germination performance
