Guayusa trial in Dutch greenhouse.

Guayusa trial in Dutch greenhouse.

Nightwatch has funded a feasibility study for growing guayusa in Dutch green houses.

Currently several plants are being cultivated in a heated greenhouse to get them through the winter period. The plants are doing well but it is too early to state if they can be grown sustainably and economically viable in greenhouses.

This research is done by Jack Alblas. Jack has earned his credits by being responsible for different types of bell peppers now grown worldwide. His company: Jack's Trials, will study such things as; nutrient requirement, light regimes, choice of substrate if any and other such factors important for plant survival. Jack will grow Guayusa under the most extreme conditions to determine how much cold, heat, humidity and draught it can handle. Pretty though measures to ensure we can return better performing guayusa plants to the jungle.

This study will reach completion this summer 2019.

To be continued…



Nightwatch' main ingredient is the Amazonian plant guayusa. The plant contains natural caffeine and sharpens your instincts. Because of our all-natural ingredients you will feel positive energy only. Our drink doesn't give you any artificial highs or lows. It will only make sure you stay focused to get the job done. 

For vital workers only: use our code #VitalWork to get a 15% discount on our product and get free shipping aswell! Feel free to share the code with you colleagues.

Also available at: online and offline Jumbo, Hoogvliet, Jan Linders, Ekoplaza, Odin other organic supermarkets. 

For all vital workers: 15% discount and free shipping
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