Tecoma stans (Yellow Bells) is a tropical shrub native to the Sonoran Desert and tropical Americas. Seeds germinate readily without scarification or stratification. Seeds tolerate water stress and germinate at high percentages across temperature ranges. Light requirements are not restrictive.
Before sowing
No pre-treatment needed — sow directly.
Seeds air-dried at room temperature before storage
Sowing
What to expect
Tips
Keep seedlings lightly moist to avoid rot and mold; reduce water after sprouting. Seeds germinate faster at 70-85°F (21-29°C). Sow after winter season ends. Seeds are wind-dispersed with papery wings. Plant produces seeds year-round in warm climates.
Sources: Sheffield's Seed Company, ResearchGate (thermal/hydrotime study), University of Arizona Pima County Master Gardeners, Plant World Seeds, Lady Bird Johnson Wildflower Center
