Solanum betaceum, commonly known as tamarillo or tree tomato, is a subtropical shrub native to the Andes mountains of South America. Seeds require warm conditions (18-28°C), high humidity, and bright light for successful germination, which typically occurs within 7-28 days. This species belongs to the nightshade family and is valued for its distinctive egg-shaped, tangy fruits.
Before sowing
Soak seeds in room-temperature water before sowing; optional but recommended for improved germination rates
Sowing
What to expect
Tips
Place seeds on moist seedling compost and cover with a thin layer; press seeds gently into substrate. Keep soil constantly moist for the first 3 weeks using a plastic cover to maintain humidity. Ensure bright light (not necessarily direct sun) during germination. Open the cover every 2-3 days to check moisture and prevent fungal issues. Gradually reduce humidity once seedlings emerge. Transplant when seedlings develop 2-3 true leaves (usually 5-10 cm tall). Protect young plants from cold temperatures below 20°C. Seeds germinate faster at warmer temperatures around 22-25°C.
Sources: Plantura Garden, The Seed Collection, Baker Creek Heirloom Seeds, Plexerus, Seed Station, Solanaceae Source (Kew Science), ScienceDirect
