How to Plant a Germinated Cannabis Seed

Learn how to plant a germinated cannabis seed with this easy to follow guide. You will need some basic supplies and a little bit of patience to get started.

Checkout this video:


If you’ve ever wondered how to plant a germinated cannabis seed, you’re not alone. Cannabis seeds are tough little things, and they can be tough to germinate. But once you get the hang of it, it’s easy! Here’s what you need to know.

What You Will Need

To plant a germinated cannabis seed, you will need the following materials:

– A small pot or container (3-5 inches in diameter) with drainage holes in the bottom
– Seed starting mix or coco coir
– A germinated cannabis seed
– A small heat mat (optional)
– A grow light (optional)

1. Fill your pot or container with seed starting mix or coco coir. The mix should be moist, but not wet. If using coco coir, make sure it is pre-hydrated before adding it to your pot.
2. Carefully place your germinated cannabis seed into the mix, making sure the taproot is pointing downwards. Gently press the mix around the seed so that it is covered. You do not want to bury the seed too deeply, as this can cause it to rot. The taproot should be pointing straight downwards, about ½ inch below the surface of the mix.
3. If using a heat mat and grow light, place your pot on top of the heat mat and position the grow light so that it is about 6 inches above the top of the pot. This will help to keep your seedling warm and provide it with enough light to encourage growth. Depending on the variety of cannabis you are growing, you may also need to rotate your plant regularly to prevent it from becoming leggy (stretched out). Check with your grower or dispensary for more specific information on lighting and temperature requirements for your particular strain.
4. Once your seed has been planted, water lightly and place in a warm, humid location out of direct sunlight until it sprouts. Once your plant has sprouted, you can move it to a brighter location if necessary. Keep an eye on your soil mix and water when necessary – you do not want it to dry out completely, but you also do not want it to be too wet as this can cause root rot.

Step One: Prepare Your Seedling Tray or Pot

If you’re starting with a germinated seed, you’ll need to transplant it into a larger pot or seedling tray. Fill your pot or tray with a quality soil mix, and make sure there are drainage holes in the bottom. You can also use pre-fertilized soil, which will give your plants a little extra boost.

Once you’ve chosen your container, it’s time to plant your seed. Gently dig a small hole in the soil mix, being careful not to damage the roots. Place your seedling in the hole, and then cover it lightly with soil. Water well, and then place the pot or tray in a warm, sunny spot.

Step Two: Planting the Seed

The next step is to carefully plant the seed in its new home. You can use a small squeegee or cotton swab to help guide the seed into the soil if needed, but be careful not to damage the taproot.

Start by making a small hole in the center of the soil with your finger or a small tool. The hole should be just big enough to fit the seed without touching the sides. Gently place the seed in the hole and then lightly cover it with more soil, using your fingers or a small brush.

Once the seed is covered, give it a gentle misting with water and then place the container in a warm (but not hot), dark location. The ideal temperature for germination is around 77 degrees Fahrenheit (25 degrees Celsius).

Step Three: Watering Your Plant

Once your plant has emerged from the soil and is growing steadily, you will need to water it. The frequency of watering will depend on the size of your plant, the size of your pot, the type of soil you are using, and the climate you live in. In general, you should water your plant when the top inch or two of soil is dry.

To water your plant, use a watering can or a garden hose with a misting nozzle. Gently water the base of your plant, being careful not to oversaturate the soil or get water on the leaves. It is best to water in the morning so that your plant has time to dry off before nightfall.

If you are using a container that does not have drainage holes, be especially careful not to overwater. Allow the top inch or so of soil to dry out completely between watering.

Step Four: Wait for Your Plant to Grow

The first thing you’ll see are the two seed leaves, or cotyledons. These emerge from the soil and unfold to reveal the plant’s true leaves, which have a distinctive cannabis shape. As your plant grows, new sets of leaves will keep appearing. You should start to see a little node action happening around week three. Nodes are where the stems and leaves branch out from, and eventually, where your buds will form.


There is no one perfect way to germinate cannabis seeds. Every grower has their own method that works best for them. The most important thing is to make sure that your seeds have access to plenty of moisture and warmth so that they can germinate successfully.

Scroll to Top