How Long Does It Take To Germinate Cannabis Seeds?

Here’s a guide on how long it takes for cannabis seeds to germinate. Learn about the different methods of germination and the average time it takes for each.

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Cannabis seeds can take anywhere from 2 to 16 weeks to germinate. The average time it takes for a cannabis seed to germinate is around 2 weeks. However, some cannabis strains can take up to 16 weeks to germinate. If you’re growing cannabis for the first time, it’s important to know how long it will take for your particular cannabis strain to germinate. That way, you can be prepared for the wait and not get impatient!

The Process of Germination

Germination is the first stage of the cannabis plant’s life cycle. It is when the seed starts to grow roots and a sprout appears. The average time it takes for a cannabis seed to germinate is between 18 and 36 hours, but this can vary depending on the type of seed.

What You Will Need

To germinate cannabis seeds, you will need the following supplies:
-Cannabis seeds
-Germination medium (soil, coco coir, Rockwool, etc.)
-Container for germination (plastic cup, propagator, etc.)
-Spray bottle
-Heating mat (optional)
-Thermometer (optional)

To begin, you will need to select a germination medium. Soil, coco coir, and Rockwool are all popular choices. Once you have chosen your medium, fill your container with it and soak it in water until it is fully saturated. Then, drain any excess water from the container.

Next, you will need to place your cannabis seeds in the germination medium. Make sure that the seeds are not touching each other and that they are buried no more than ½ inch deep in the medium. If you are using a heating mat, place it underneath your container at this time.

Now you will need to water your seeds gently with a spray bottle. Make sure that the medium is evenly moistened, but do not saturate it. You may also wish to cover your container with a lid or plastic wrap at this time to help keep the humidity level high.

Place your container in a location where it will receive indirect light and maintain a temperature between 70-90 degrees Fahrenheit. If you are using a heating mat, this will help to keep the temperature constant. Check on your seeds daily to make sure that they are moist and warm enough.

It typically takes 5-10 days for cannabis seeds to germinate. Once they have sprouted roots and a small seedling has emerged from the seed coat, they can be moved to their final growing location.

The Germination Process

The Germination Process

Once you have your supplies ready, it’s time to start the germination process. You’ll need to have patience during this stage, as it can take a few days for the seeds to sprout. Here’s a step-by-step guide to help you through the process:

1. Soak your seeds in distilled water overnight. This will help to soften the hard outer shell, making it easier for them to sprout.

2. Fill your growing medium of choice with water and soak for about 15 minutes. This will help to pre-moisten the soil and make it easier for the roots to penetrate.

3. Place your seeds on top of the growing medium, making sure that they are spaced evenly apart. Gently press them down into the soil, taking care not to damage the delicate shells.

4. Place your container in a warm location out of direct sunlight and cover with a lid or plastic wrap. This will create a humid environment that is perfect for germination.

5. Check on your seeds daily, making sure that they are still moist but not soupy. If they start to dry out, lightly mist them with water from a spray bottle.

6. After 3-5 days, you should start to see little white tails poking out from the soil as your seeds sprout! At this point, remove the lid or plastic wrap and give them plenty of fresh air and indirect sunlight.

7 But if after 10 days nothing has happened don’t worry--sometimes it can take up to 2 weeks for cannabis seeds to germinate

Factors That Can Affect Germination Time

The amount of time it takes for a cannabis seed to germinate can vary depending on a few different factors. These factors can include the type of seed, the age of the seed, the conditions of the growing environment, and more. In this article, we’ll go over all of the different factors that can affect the germination time of your cannabis seeds.

The Type of Seed

The type of seed is the primary factor that determines how long it will take to germinate. Some strains of cannabis are notoriously slow to germinate, while others seem to sprout overnight. The vast majority of commercial cannabis seed these days is feminized, meaning that it will only grow into female plants. These are the plants that produce buds, so if you’re growing for personal use, you’ll want feminized seeds. (If you’re growing for medical purposes or breeding, you may want non-feminized seeds so that you can grow both male and female plants.)

Feminized seeds typically take a bit longer to germinate than non-feminized seeds. This is because they have to go through an extra step in the germination process called ‘sexing.’ With non-feminized seeds, you can simply plant them and wait for them to sprout. With feminized seeds, you have to plant them and then wait for them to sprout and develop sex organs (usually pistils). Once the sex organs have developed, you can then determine whether the plant is male or female.

The type of strain can also affect germination time. Some strains are naturally faster or slower to germinate than others. For example, indica strains tend to germinate more quickly than sativa strains. This is because indica plants have shorter flowering cycles than sativas.

The age of the seed can also affect germination time. Older seeds may take longer to germinate than newer ones. This is because the seed’s shell may have hardened over time, making it more difficult for water to penetrate.

The Quality of the Seed

There are many different factors that can affect the germination time of cannabis seeds, but the most important one is the quality of the seed. If you start with a low-quality seed, it is likely that it will take much longer to germinate than a high-quality seed. The best way to ensure that you are starting with high-quality seeds is to buy them from a reputable source.

Another factor that can affect germination time is the storage conditions of the seeds. If the seeds are stored in an environment that is too dry or too cold, they may take longer to germinate. Seeds that have been stored in a fridge or freezer may take even longer to germinate.

If you are not sure about the quality of your seeds or the storage conditions, it is always best to err on the side of caution and give them a little extra time to germinate.

The Growing Medium

The growing medium has a big influence on how long it takes for cannabis seeds to germinate. Some media like coco coir can help speed up the process, while others like soil can take a bit longer. Meanwhile, deep water culture (DWC) systems can cause seeds to germinate very quickly, sometimes in 24 hours or less!

The Temperature

Most people don’t think about the temperature when it comes to germinating cannabis seeds. The soil temperature, though, is extremely important. If the soil is too cold, the cannabis seeds won’t germinate. If the soil is too hot, the cannabis seeds will germinate, but they won’t be able to survive. The ideal soil temperature for germinating cannabis seeds is between 70 and 80 degrees Fahrenheit.

The Humidity

The humidity of your germination location is important for several reasons. Too much moisture in the air will cause your seeds to rot before they have a chance to sprout. Not enough moisture will cause your seed to dry out and die.

The ideal relative humidity (RH) for germinating cannabis seeds is between 60-70%. You can easily measure the RH in your grow area with a hygrometer.

If the RH in your grow area is too low, you can increase it by adding a humidifier. If the RH is too high, you can decrease it by adding a dehumidifier or opening a window to let some of the moisture escape.


It can take anywhere from 24 hours to 2 weeks for cannabis seeds to germinate. The time it takes depends on several factors, such as the age of the seed, the type of seed, the growing medium, and whether or not you’re using a grow light. With proper care and attention, your cannabis seeds should germinate within a week.

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