How to germinate cannabis seeds
Germination is the process in which a new plant begins to grow from a seed. Also referred to as “popping,” germination is the very first step in starting your cannabis garden.
Cannabis seeds can be acquired from an array of sources and can vary in quality. For more info on how to buy marijuana seeds, check out our Guide to buying cannabis seeds.
When acquiring seeds, you want to make sure they are matured and that they appear dark brown with lighter accents and a hard feel. You don’t want a seed that feels fresh and looks green, which indicates that the seed hasn’t reached full maturity.
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Once you have your cannabis seeds, make sure you have the space necessary to allow your plants to grow and be healthy. Don’t pop seeds when you are unsure of your grow space, time availability, or intention with your garden.
Check out these additional resources for more info on cannabis seeds:
What’s the best way to germinate cannabis seeds?
Cannabis seeds require three things to germinate: water, heat, and air. Because of this, there are many methods to germinate your seeds. The most common and simplest method involves the use of paper towels saturated in water.
For this method you will need:
- Two clean plates
- Paper towels
Take four sheets of paper towels and soak them with distilled water. The sheets should be soaked but shouldn’t have excess water running off.
Take two of the paper towels and place them on a plate. Then, place the cannabis seeds at least an inch apart from each other and cover them with the remaining two sheets of water-soaked paper towels.
To create a dark, protected space, take another plate and flip it over to cover the seeds (like a dome).
Make sure the area they’re kept in is warm, somewhere between 70-90°F.
After these steps have been completed, it’s time to wait. You can check the paper towels to make sure they’re still saturated, and if they seem to be losing their moisture, you can apply more water to keep the seeds happy.
Some seeds germinate very rapidly while others can take several days. You know a seed has germinated once the seed splits and a single sprout appears.
This is the taproot, which will become the main stem of the plant, and seeing it is a sign of successful germination. It’s important to keep this area sterile, so don’t touch the seed or taproot as the seed begins to split.
Transplanting germinated cannabis seeds
Once you see the taproot, it’s time to transfer your germinated seed into its growing medium. Small 2-inch pots are a good place to start.
Fill the pots with loose, airy potting soil and poke a hole in the middle about a quarter-inch down using a pen or pencil.
To transfer the seed, use a pair of tweezers to gently pick it up, then drop the seed in the hole with the taproot facing down. Lightly cover it with soil.
Next, you’ll need to water the soil. Initially, use a spray bottle to provide moisture without over-saturating the soil. You want to give the seed water, but over-watering can suffocate and kill the delicate sprout.
Pay attention to the temperature and the moisture level of the soil to keep the seed happy, and within a week or so you should see a seedling begin to grow from the soil.
Germinating seeds doesn’t always go as planned. Some seeds will be duds. Others will be slow and take longer to sprout. But some will pop quickly and grow rapidly.
This is the beauty of seeds—often, you can tell which plants or genetics will thrive right from the get-go. This will help you determine which plants you want to take cuttings from for clones and which to breed with other strong plants to create a seed bank of your own.
Follow these simple steps on the best way to properly germinate your cannabis seeds, and find out how to transplant the seeds to soil after germination.
A guide to germinating seeds
A seed is defined in the dictionary as being ‘the unit of reproduction of a flowering plant, capable of developing into another such plant. We recently spoke about how plant cells grow and how to sow seeds indoors , so we thought we would expand on that a little bit.
Benefits Of Growing From Seed
There are so many benefits to growing from seed that you may choose to start planting and growing flowers and vegetables at home rather than buying them fully grown in store.
- Plant seeds are quite simply cheaper – no complaints there.
- You know that your flowers and vegetables are always organic
- There are so many different varieties available – some of which you may not have heard of as there are hundreds of species available only in seed form as opposed to starter-plants, plugs or cuttings.
- You’ll get to enjoy the gardening process – and watch your garden grow.
Guide To Germinating Your Seeds
1) Buy Your Seeds
One of the great perks of growing your own plants and vegetables from seed is the fact that you’ll have so many choices to choose from – and you’ll be able to find the perfect seeds to suit you and your garden online or at your local garden centre. Remember to take note of your environment and pick seeds wisely, keeping in mind the environment you have on offer. You will need to pay particular attention to the requirements of the seed –lookout for water requirements, soil temperature, nutritional requirements, and desirable lighting for each species you consider.
2) Learn About Your Seeds
Now, that you’ve got your seeds ready – you will need to plant them. It is possible to plant seeds both straight away directly in your garden soil or alternatively in containers that can then be transported outside further down the line. This decision depends hugely on the species you wish to plant as some require more sensitive care than others. To do so, you will need to know the ideal growing conditions for your plant; the germination time, and also the earliest time from which you can transport your plant outside.
Garden soil can contain high levels of disease and insects that can cause harm to your seeds. Therefore, it is the safer option in most cases to start your seeds off indoors in ‘seed and cutting’ compost. Obviously, these conditions will vary from plant to plant, so make sure you check thoroughly before beginning the process.
3) Pick Your Container
You will need a container that is two to three inches deep and features holes at the bottom, for drainage purposes. The width of the container can vary – it all depends on how many seeds you wish to plant. However, remember to ensure you leave enough room for the seeds to germinate. You can buy trays from your local garden centre or online, or you can even use an egg carton. Now that you have your container ready, you will need to line your seeds with your growing medium. Do not fill your container right to the top with this combination, instead leave approximately half an inch at the top. Lightly wet with water to provide a good environment for the seeds to grow in. However, do note that soil-less mixture contains zero nutritional value so it may be a good idea to use seed and cutting compost.
You can purchase propagators which are designed for growing multiple fruit or vegetables from seed. These containers are perfect for the task at hand.
4) Check Whether Or Not You Should Soak Your Seeds
Some seeds may require soaking before you plant them, whereas others do not. Make sure to check all the information on the packet as previously mentioned. If your seeds do require soaking, you will need to do so for several hours before adding to your growing medium.
5) Time It Right
Normally, you should plant your seeds between 4-6 weeks prior to moving them outside, however, species do vary. Also, you may be required to plant your seeds indoors earlier than predicted or indeed later, all dependant on the weather at the time.
6) Provide Heat And Lighting
Many seeds do not need lighting to germinate while others do. You may need a source of heat and light as sunlight will most likely not suffice. Pick up a plant lamp to keep your seeds happy with lots of lights and heat. Please note: You may use a fluorescent lamp without trouble but you will need a white bulb to provide the right heat and light for your seeds without burning them. A heat mat may also be a good idea for plants that require extra heat.
7) Keep The Growing Medium Moist
We suggest covering your container lightly with plastic sheeting/damp newspaper. This will act as a way to regulate and trap moisture and temperature. This is important as if your seeds dry out they will not germinate properly.
Once you see the first shoot poking through, you will need to move the container into a sunny area. Ensure that the room temperature is above 70°F (21°C) and in bright light so that your plants can grow. You can now remove the plastic/paper covering, but ensure you keep the seedling moist by watering throughout the day. We advise you to water in the early morning and in the afternoon, but not any later in the day – as doing so can mean the water sits on top of the growing medium and can cause problems such as mould that are best avoided. At this point, it is also important to feed your seedlings with the correct fertiliser once they’ve gotten a few inches tall.
8) Transporting The Seedlings
First, if any of the seeds germinate, it is best to thin out the less-strong seedlings, so that the stronger ones can grow even more so. Aim to not exceed three seedlings per section of the container/egg box. Following this, when the growing season starts you will be able to move your seedlings to larger containers outside. Continue to follow the instruction considering soil, lighting and drainage and enjoy.
Love The Garden will show you the benefits of growing from seed and guide you through the whole germination process, from buying the seeds to maintaining growth.