How to Germinate Cannabis Seeds for Hydroponics

If you’re thinking about growing cannabis hydroponically, you’ll need to know how to germinate your seeds first. In this blog post, we’ll show you how to do just that.

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One of the most common questions we receive at Green Carpet Growing is, “What’s the best way to germinate my cannabis seeds?”

Many new growers don’t realize that the method of germination can actually have a significant impact on the quality of your final product. For example, if you start with poor-quality seeds, no matter how good your growing conditions are, your plants will never reach their full potential.

On the other hand, if you start with high-quality seeds and give them the best possible care, you will be well on your way to growing award-winning cannabis.

In this article, we will show you how to germinate cannabis seeds for hydroponics, so that you can produce strong, healthy plants that will yield a bountiful harvest.

What You Will Need

To germinate cannabis seeds, you will need the following supplies:

-Cannabis seeds
-A growing medium
-A container
-A humidity dome
-A heat mat

Once you have gathered your supplies, you will need to follow these steps:
1. Fill your container with your growing medium and water it until it is damp but not wet.
2. Place your cannabis seeds on top of the damp growing medium.
3. Cover the container with the humidity dome.
4. Place the container on the heat mat and set the mat to 70 degrees Fahrenheit.
5. Check on your seeds daily, misting them with water if they seem dry.
6. Once your seeds have germinated, remove the humidity dome and keep the heat mat set at 70 degrees Fahrenheit.

The Process

To germinate cannabis seeds for hydroponics, you will need:

-Cannabis seeds
-Germination medium (rockwool, coco coir, peat moss)
-1 gallon (3.8 L) reservoir
-pH test kit
-Hydroponic nutrients

Fill your reservoir with water and test the pH. Cannabis seeds need a pH between 6 and 7 to germinate properly. If your water is too acidic or alkaline, you can use pH up or pH down to adjust the levels. Add your chosen germination medium to the reservoir. We recommend using rockwool, coco coir, or peat moss. Place your cannabis seeds on top of the germination medium and make sure they are in contact with the water. Check the reservoir daily and top off with water as needed to keep the germination medium moist but not waterlogged. After 7-10 days, your seeds should have sprouted roots and be ready to transplant into your hydroponic system.


With these easy steps, you can germinate your cannabis seeds for hydroponics in no time. Just make sure to follow the instructions carefully and you will be well on your way to growing healthy and vibrant plants.

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