The Best Water Ratio for Growing Cannabis Plants in Coco Coir
Author: Aqua Gardening
Date: 15 March 2023

The Best Water Ratio for Growing Cannabis Plants in Coco Coir

When growing cannabis plants, the medium in which you are planting them can make a huge difference. One of the most popular mediums for cannabis cultivation is coco coir, which is an environmentally friendly and sustainable option. But how much water should you give your cannabis plants when they are planted in coco coir? Let’s break it down!

The First Step - Know Your Medium

Coco coir retains more water than other mediums, like soil, so one of the most important things to remember is that when it comes to feeding your plant with water, less is more. Coco coir holds onto water better than soil does. This means that if you over-water your plant by giving it too much at once, the water will stay in the medium for far longer than expected. In fact, too much water can lead to root rot and other problems that can severely damage your plant.

The Second Step - Establish a Schedule

Once you know what medium you’re using, you can begin to establish a schedule for watering your plants. You want to make sure that you don’t let your plant dry out completely between feedings but also not get too much moisture or else it will become saturated and cause root rot.

To prevent this from happening, check on your plant every day and make sure that its roots are still slightly damp but not soggy or wet. If they feel dry then give it some water but only enough to moisten them again—you don’t want to drown them in moisture!


The Third Step - Strive For Consistency

Consistency is key when caring for cannabis plants growing in coco coir because if there isn’t consistency then the roots won’t be able to access the right amount of moisture at all times which could lead to poor growth or even death of the plant. The best way to ensure consistency is by using the same watering routine each time – never give more or less than what was given last time unless absolutely necessary (like if the weather has been particularly hot). This means measuring out exactly how much water needs to be given each time and making sure that it gets evenly distributed throughout the entire area where the roots are located.


When growing cannabis plants in coco coir, knowing how much water to give them is essential for success. Too little and they won't grow properly; too much and their roots may

rot, leading to potential death of the crop. That's why establishing a consistent watering schedule based on the condition of your plants' roots each day is so important—it helps ensure that they have just enough moisture while avoiding over-watering or under-watering issues that could otherwise wreak havoc on their health! With a bit of trial and error, any beginner grower can master this skill easily and reap plentiful rewards from their harvests!