photosynthesis on Echeveria
Quick answer
If your Echeveria has photosynthesis, the most likely cause is: Succulents evolved CAM photosynthesis to survive arid environments by keeping stomata closed during the day to minimize water loss through transpiration, opening them at night to collect and store CO2 as malic acid.
Start here:
- 1. Water in the evening to support night-time stomata opening and CO2 absorption
- 2. Allow soil to dry between waterings to prevent root rot while maintaining CAM activity
Why Echeveria gets photosynthesis
Echeveria spp.
Succulents evolved CAM photosynthesis to survive arid environments by keeping stomata closed during the day to minimize water loss through transpiration, opening them at night to collect and store CO2 as malic acid.
CAM idling can occur when night temperatures remain high — stomata remain closed day and night, recycling respiratory CO2. Succulents with sunken stomata further reduce water loss. Some species exhibit weak CAM or C3 photosynthesis in less stressful conditions.
How to reverse photosynthesis on Echeveria
- 1
Water in the evening to support night-time stomata opening and CO2 absorption
- 2
Allow soil to dry between waterings to prevent root rot while maintaining CAM activity
- 3
Provide bright light during day hours to utilize the stored malic acid for photosynthesis
Keep photosynthesis off this Echeveria
Maintain moderate temperatures and avoid overwatering to keep CAM cycling active.