Coffea canephora, commonly called Robusta coffee, is a hardy species native to the tropical forests of Central and Western Africa. It is valued for its disease resistance, high caffeine content, and ability to thrive in warm, humid conditions where Arabica cannot. Seeds are recalcitrant and must be sown fresh, requiring consistently warm temperatures and high moisture for successful germination.
Before sowing
Use fresh seeds within 2 months of harvest; older seeds take longer to germinate and lose viability; remove papery seed coat to reduce mold and improve germination speed
Sowing
What to expect
Tips
Keep seeds fresh and moist; germination is slow and erratic, typically 42-56 days. Remove parchment coating before sowing to reduce mold and speed germination. Maintain high humidity with clear plastic covering and daily misting. Ensure soil never dries completely. Cover seeds with moist sphagnum moss to maintain moisture contact. Watch for seed rot by maintaining proper air circulation. Once leaves appear, seedlings are easy to grow.
Sources: World Seed Supply, Trade Winds Fruit, Royal Horticultural Society, ScienceDirect, Plantiary, World Coffee Research
