How to Germinate Cannabis Seeds in Paper Towels
If you’re new to growing cannabis, the first step you’ll need to master is seed germination. It’s how you get your seeds to sprout, turning those tiny cannabis seeds into thriving plants. One of the most popular and beginner-friendly ways to germinate seeds is using the paper towel method. It’s simple, effective, and widely trusted by growers of all levels.
Xavier Kief
Table of contents
Let’s start by quickly going over the basics of cannabis seed germination and why the paper towel technique is often preferred. Then, I’ll walk you through a step-by-step guide to getting your seeds started.
Too Long, Didn't Read
The paper towel method is a “best of both worlds” approach between germinating seeds in water vs. planting them directly into soil. The beauty of this technique is that it allows you to keep an eye on the seeds’ progress without rushing to plant them right away. You’ll know when the root appears so you can transfer the sprouted seed to its growing medium at just the right moment.
Plus, it’s an easy, low-cost option that doesn’t require any fancy gear. All you need are some basic household items, a little patience, and a love for growing cannabis.
Why Many Growers Prefer It
Control: You can easily monitor your seeds and spot when they start to crack open.
Flexibility: There’s less risk of seeds drowning compared to the water germination method.
Accessibility: You don’t need a special setup—just a few paper towels and a plastic bag.
Now, let’s get into the step-by-step guide.
How to Germinate Cannabis Seeds Using the Paper Towel Method
Step 1: Assemble Your Supplies
Before getting started, you’ll want to gather everything you need:
Good quality cannabis seeds (like the ones you got from us )
Distilled water or spring water
Two sheets of paper towel (unbleached if possible)
A plastic zipper bag or a clean, airtight container
A misting spray bottle (optional but helpful)
Make sure everything is clean! This will help avoid contamination that could harm your seeds.
Step 2: Pre-Soak Your Seeds (Optional)
Some growers like to pre-soak their seeds in water for 12 to 24 hours before moving on to the paper towel. It’s a way to “wake up” the seeds, letting them absorb water and soften their shells.
If you want to give this a try, drop your seeds into a cup of clean water. You might notice that some seeds float at first—just give them a gentle poke so they sink. After soaking for the recommended time, you can move on to the next step.
Step 3: Prepare the Paper Towels
Lay out a single sheet of paper towel on a clean, flat surface. Use your spray bottle (or lightly pour water) to moisten the towel. You want it damp but not dripping or soaked—there should be no standing water.
Step 4: Place Your Seeds on the Paper Towel
Carefully place your cannabis seeds on the damp paper towel, spacing them about an inch apart. This gives them room to grow without tangling roots.
Step 5: Cover the Seeds
Place the second sheet of paper towel over the top of the seeds. Gently press down to make sure the top towel is also moist and in full contact with the seeds.
Step 6: Store the Paper Towels
Now, roll or fold the paper towels into a loose bundle to hold the seeds in place. Transfer the whole bundle into your plastic bag or airtight container.
If you live in a particularly dry environment, you can seal the bag or container completely. Otherwise, leave a small gap for air to circulate—this prevents the seeds from suffocating or getting too wet.
Step 7: Label and Store in a Warm, Dark Place
Find a warm, dark place for your seeds to germinate. Ideally, the temperature should be between 70-85°F (20-30°C). A good spot could be on top of your refrigerator or in a cupboard. Just make sure it’s not in direct light or a drafty area.
Label your setup with the date and any seed information you want to remember (like the strain or seed type). Now, the hardest part: patience.
Step 8: Wait and Check After 12 Hours
After about 12 hours, you can carefully check on your seeds. Open the container and unroll the paper towel to see if the seeds have popped open. Don’t panic if nothing has happened yet! Seeds can take anywhere from 12 to 48 hours to show signs of life, and sometimes several days longer.
If the paper towels seem dry, use a spray bottle to lightly re-moisten them. Be sure not to touch the seeds directly—they’re delicate at this stage!
Step 9: Look for Radicles (Roots)
Once you see a small white root (called the “radicle,” which will develop into a taproot) poking out of the seed, you’re in business! This is your signal that the seed is ready to be transferred to its growing medium. You want to catch this moment before the root gets too long or fragile.
Step 10: Plant Your Germinated Seeds
Carefully transfer your germinated seeds into their growing medium—usually soil, but coco coir and other substrates work, too. Use your finger to make a small hole about an inch deep, gently place the seed inside (with the tip of its radicle pointing down), and cover it lightly with soil.
It’s helpful to mist the area around the seed to keep it moist. If it’s chilly where you’re growing, consider using a seedling heat mat to keep the temperature steady.
Step 11: Stay Patient and Be Gentle
Now comes the tricky part—waiting. Sprouting can be a delicate process, and it’s easy to get impatient, but remember: good things come to those who wait. Keep the soil moist but not soaked, and give your seedlings the time they need to grow strong roots.
Handling your seedlings with care is crucial, especially when they’re small and fragile. Too much roughness or overwatering at this stage could damage the delicate root system.
What If My Seeds Don’t Germinate?
Sometimes, even with the best care, seeds just won’t sprout. Don’t give up! Some seeds are duds, but that doesn’t mean you did anything wrong. If this happens, you can always try a different batch of seeds or explore other germination methods.
The Paper Towel Method: Dos and Don’ts
Here are a few tips to make sure you get the most out of your germination process:
Do:
Keep everything clean. Germinating seeds are delicate, and contamination can lead to poor results.
Use unbleached paper towels when possible. They’re free from chemicals that might harm your seedlings.
Keep seeds of different strains separate to avoid confusion.
Don’t:
Let the paper towel dry out. Keep it moist, but never soaking wet.
Overheat your seeds. Using a heat mat is fine if the room is cool, but make sure you don’t “cook” them by accident.
Be rough when handling your seeds. The tiny root is delicate—treat it gently to avoid damaging it.
Final Thoughts
The paper towel method is one of the easiest and most reliable ways to germinate cannabis seeds. It gives you control over the process while letting you monitor your seeds’ progress without the worry of drowning or drying out. Even if you’re new to growing cannabis, this method offers a high chance of success.
And remember, if your seeds don’t crack right away, don’t be discouraged. Some seeds take a bit more time, but with patience and care, you can get those “beans” to pop.