Studying the environmental conditions that reactivate cryptogams after dormancy is key to our research. As poikilohydric organisms, cryptogams rely on the humidity in the atmosphere to become active and productive. Understanding exactly how this complicated process of reactivation works in real-life conditions is tricky and this is where we rely on technology to assist us. We make use of chlorophyll-fluorescence monitoring systems, that measure exactly the conditions that reactive the organisms as well as their associated photosynthetic yield and stress levels. This helps us to monitor the microclimate these organisms need to stay healthy and productive.