Temperature For Blooming on anthurium
What's Happening
Anthurium andraeanum inflorescence development requires stable temperatures between 70-85°F (21-29°C) daytime and 60-70°F (15-21°C) nighttime. Temperature fluctuations below 65°F or above 90°F disrupt the SOC1 and AGL6 floral identity gene expression pathways, causing bloom cycle interruption. Cold drafts specifically trigger chilling injury that aborts developing spathes.
How to Fix It
- 1
Maintain daytime temperature 75-80°F and nighttime 65-70°F for optimal flowering
- 2
Position away from AC vents, drafty windows, and exterior doors
- 3
Use heating mat set to 75°F during winter months to maintain root zone temperature
- 4
Avoid temperature swings greater than 15°F between day and night
- 5
Monitor with digital thermometer at plant level—ambient room temp often differs by 5-10°F
How to Prevent It
Select stable microclimate location away from HVAC airflow. Use thermostat-controlled heating mat in winter. Maintain consistent year-round temperature to support continuous flowering rather than seasonal bloom cycles.