Posted on

germinating autoflowers in soil

Planting directly into your growing medium prevents having to move seeds when they are at their most fragile. That first root tip is covered with microscopic filaments that are easily damaged. Given that both a cup full of water and moist paper towels are more prone to temperature fluctuations from their environment, planting in soil is a much safer option.

Often overlooked, it is all too easy to assume that the vegetative and flowering stages of cannabis growth are the most critical parts of the plant’s life cycle. However, with the chance of failure high unless you know what you’re doing, poor planning when it comes to germination can make or break your next grow. Giving your cannabis seeds the best possible start on their journey to bulging buds is a surefire way to encourage a healthy and robust plant.

After 3–5 days, the seeds will start to open, and you should see tiny white tips appear. Once these roots reach 2–3mm in length, use extreme care to transfer them from the water to pre-prepared soil pots.


Regardless of where you get your seeds from, it is best to give them a slight (and delicate) inspection before planting. Most of the time, all seeds will germinate; however, poor-quality seeds will produce a weaker plant. Unfortunately, that is something you will not find out until well into the vegetative and flowering stages.

The Royal Queen Seeds Feminized Starter Kit contains:

The dome of the plastic container will create your seeds’ own mini tropical climate. If you then place all the components in a temperature-controlled cupboard, you will have created a self-perpetuating supply of moisture—no need to touch the seeds again until they are ready to be transferred to your final growing medium as a young seedling. Using the stone wool block method, your seeds should germinate in one to two days.

• The ideal temperature is between 22° and 25°C (71–77°F)
• Your growing environment should be damp/moist, but never wet
• Relative humidity range should be between 70% and 90%
• Seeds favour fluorescent lighting (Cool White code 33)
• Minimise the amount of seed handling you do
• In hydroponic/rockwool plugs, the ideal PH value is 5.8–6.2

LEDs have been in the market for a couple of years now, in the beginning, they weren’t worth it but they have evolved a lot, and nowadays are considered the best not only by home growers but also commercial growers.

We recommend a mix of soil, perlite, and coco fiber to provide enough water drainage and oxygenation, resulting in the best soil for autoflowers.

3. The Best Nutrients

These light fixtures can cost up to 10x more than light bulbs but emit a full-spectrum so, despite the high price, you can get better results and higher yields which ends up being worth it.

Many growers use nail files to gently scratch the surface of the seeds, but do not do this if you’re fairly new. A scratch on the seed coating allows water to penetrate the shell and the seed develops a taproot faster. Place the seeds in moist paper towels for 2-3 days until you see long tap roots. The next step is to plant seeds in their final containers and wait for them to push through the soil.

It’s pretty easy to germinate cannabis seeds. You can sow the seeds directly in the pot, but if you don’t have a lot of experience or are impatient like the rest of us, soak the seeds in plain water for 24 hours. It’s common to see a tiny taproot after a day of soaking but it’s alright if you don’t see them.

You can place the pellet or cube directly in any type of medium or hydroponics chamber, after sprouting, the roots will continue to grow down, even if they reach the end of the Rockwool or peat pellet.

Place the seeds in the glass and leave it in a dark place, let the seeds soak for up to 32 hours.

When germinating, we need to hydrate the seed, this will soften the seed’s shell and allow water to reach the embryo, when the water reaches it, the embryo will “activate” and start developing.

7. Rockwool Cubes And Peat Pellets

If you’re going to germinate them during the next couple of days there’s no need to do anything extra, other than keeping them in a cool place and in complete darkness but if you’re planning to store them for months or even years, you should keep them in the fridge.

Moisten the paper towels and wring them out so they’re damp but not completely wet.

To germinate in either one of them, we will use the same technique explained before, moisten the Rockwool or peat pellet, make a little hole (1-2cm) and place the seed inside, cover it gently without applying pressure and you’re all done.

Every time you transplant a seedling, it needs some time to readjust and can cause stress, thus one of the biggest benefits of this method is you don’t have to worry about damaging your seedling when transplanting or shocking it because it already is in its final place.