Germinate Cannabis Seeds In Plastic Bag

Do you want to learn how to start cannabis seeds? Follow this quick tutorial and video guide to learn how to start cannabis seeds right at home here! How to Grow Seeds in a Plastic Bag. Small seedlings can prove challenging to sprout in the garden bed, since watering or rain may wash them away before they germinate. Growing the seeds in advance inside a plastic bag prevents this issue and helps speed germination. Plastic bag sprouting also allows you to test … Many cannabis consumers have found an occasional seed in their bag of marijuana. But can you actually use them to grow your own weed? Learn more about germinating bag seeds and turning them into flourishing cannabis plants.

How to Start Cannabis Seeds

When it comes to starting cannabis seeds, there’s a little bit more care that goes into that simply plopping the seeds into some soil. After all, you want them all to germinate right? Plus, by following the steps below to start your cannabis seeds, you may learn a thing or two before the seeds even germinate!

Video on How to Start Cannabis Seeds

Germinating Cannabis Seeds

  1. Alright to start, go ahead and pull out whatever cannabis seeds you intend to germinate. Today, we will be starting four different varieties to find the perfect strains to run for the light depping and full sun seasons.
  2. Now with your seeds picked out, go ahead and fill a few jars with water and label them accordingly. Once the jars are filled, just drop your seeds into the water to soak. You will want to let them soak for anywhere between 4 to 12 hours. Grower Tip: If your seeds are floating in the jar by the end, they most likely will have trouble germinating.
  3. Now that the seeds are done soaking, go ahead and get some wet paper towels and ziplock bags. Yup, back to the same seed germination steps you likely learned in grade school.
  4. With the paper towels moist, but not overly wet, set your seeds on it and fold over. After this, simply place the paper towels into your ziplock bag. Don’t forget to label each bag, so you don’t confuse the strains later on.
  5. Place these bags in a safe place that’s relatively warm. We will check back on them soon.

Preparing Your Soil

And, we’re back just two short days later with sprouted seeds! Once you see them sprout just a tiny bit, they are ready to be moved into some soil.

With the seed sprouted and still wrapped up in their moist paper towel, go ahead and grab some pots and fill them with soil. We use smaller pots at the beginning and then transplant them into larger pots later on, but feel free to move the sprouted seeds into any size pot you’d like. You can even place them in the pots you intend to use for the duration of their lifespan.

Now that the pots are filled with your soil, get ready to moisten that soil! But first, be sure to add some Rootwise Mycrobe Complete to your water. For this, you will want to use a pinch of the Rootwise product per plant. We had nine sprouted seeds to move into pots, so we used about half a tablespoon, but you could definitely go even less than that.

Of course, you could forgo using the Rootwise Mycrobe Complete all together, but we tend to get much better results when it’s used.

Placing Your Cannabis Seeds in Soil

Alright, you have your water all mixed up, go ahead and pour it into the pots. Be sure to get each pot very moist prior to planting your sprouted cannabis seed in the soil. Once moistened, simply stick your finger in to form about a ⅛ inch deep hole. This is where you will place the seed.

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For this next part, there is actually some quite heavy debate. Feel free to do your research and do whatever works best for you.

Personally, we prefer to take the sprouted seed and look for the “hook” growing out of the seed. After locating it, place the part protruding from the seed down into the soil, the other side of the “hook” facing upwards, and cover the remainder of the seed with soil except for the very tippy-top of the seed itself.

Again, this is a personal preference, but we like to leave the very tip of the seed exposed at the top to ensure the plant knows which way to go. We know, we know, plants are beyond smart beings, we do this just to be cautious and ensure each one has the best chance of survival.

Letting Them Grow

Now with your newly sprouted seeds in the soil, put them under lights or place in a window sill to allow them to continue to grow. A controlled environment is best, as you can ensure the plant gets enough sun, as well as remains at the perfect humidity and moisture for optimal growth. However, we totally understand if that’s not an option. A window sill or even outdoors will work just fine.

Just beware of the conditions you are placing your newly sprouted seed in. After all, it’s just like a newly born child, small, fragile and trying to figure out the world around them, so care for them the same. They are your plant children and deserve some tender, love, and care, so they can provide you with a strong plant that produces in abundance for you.

With the plants in their new home, we get to wait again! It’s okay though, everything takes time to grow, just like us, so be patient and let the seeds keep working hard to come to life for you.

And, we’re back just a few short days later! The seeds have officially sprouted their first leaves. Now, care for them using this calendar and feeding schedule until they begin showing their sex. At that time, you will want to separate the female and male cannabis plants, so you can place the female plants into flower.

How to Grow Seeds in a Plastic Bag

Small seedlings can prove challenging to sprout in the garden bed, since watering or rain may wash them away before they germinate. Growing the seeds in advance inside a plastic bag prevents this issue and helps speed germination. Plastic bag sprouting also allows you to test germination rates, which is vital if you are using saved garden seed or old seed from previous years. Germination time varies depending on the plant variety, but most sprout within three to 14 days.

Stack two paper towels on top of each other. Fold the towels in half and sprinkle them with water until they are completely moistened but not dripping wet.

Spread the seeds out on top the paper towel, covering only half the towel with seeds. Space the seeds so they are not touching and there is about 1/4-inch of space around each seed.

Fold the damp towel in half, sandwiching the seeds between the towels. Press lightly on top the towel so the seeds are in full contact with the towels on both sides.

Slide the paper towel into a plastic zip-top bag. Seal the bag closed to trap the moisture and prevent the towel from drying out.

Set the sealed bag in a warm area, such as on top the refrigerator, where temperatures are between 70 and 80 degrees.

Check the seeds every two days until the seeds begin to swell and the first short sprouts emerge. Sow the seeds immediately in a pot or prepared garden bed at the depth and spacing recommended on the seed package once they begin to sprout.

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Things You Will Need

Plastic zip-top bag

Tweezers make it simpler to transplant sprouted seeds without damaging the tender sprout.

How to Germinate a Bag Seed

F inding a seed in your bag of weed used to be regarded as an insult, an indication you scored some inferior product. But it’s a new millennium, and growing cannabis is perfectly legal in some states and territories. While buying seeds online is still recommended for reasons we will detail further, finding a healthy seed can be as valuable as an ounce of gold. Or at least the cost of the bag.

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In this article we review the steps to germinate cannabis seeds, tips and tricks in the process, and how to keep your seedling healthy.

Germinating a seed is the first step in the growing process, and a cannabis seed will sprout with a voracious hunger, so if you are about to germinate seeds, start thinking ahead about where the seedling will eventually be moved to. This includes lighting, ventilation, and something to feed the lady. Those things don’t need to be decided before you begin, but try to have a plan in place by the time the second set of leaves emerges — as soon as two weeks.

The Germination Process

Begin by soaking the seed overnight. Soaking the seed saturates it with moisture, and moving it shortly after to a warm home tells the seed that it’s someplace comfortable, and it’s time to grow. Tap water is fine for this, but a micronutrient solution like liquid seaweed may be included.

Once your seed has soaked, the most common method for germination is the “paper towel method.” Wet a piece of paper towel and wring dry, then fold in half. Place the seeds between the halves of the damp paper towel, and slide the whole thing into a ziplock bag. Seal with some air inside. Leave this bag someplace comfortably warm for about a week, checking frequently for spots of mold. After about a week, a taproot should emerge.

Then it is time to transfer the seed into a proper growing medium. Be careful plucking your seed from the paper towel!

A grow medium is the “stuff” the seed will sit in. The easiest option is soil, healthy black earthy scooped up from your yard, or potting soil purchased from any garden center. Rock wool cubes are a common option for hydroponic growers, but can later be transplanted into soil as well. Compost and worm castings are great for a seedling, but it will need to be transplanted into a more diverse mixture later.

It is far too early to begin any nutrient cycle, or to introduce any fertilizers to the soil. Now that the seed is confirmed as alive, and placed into a more comfortable medium, simply make sure that the seed is watered and warm.

The first set of leaves to emerge are called “sucker leaves,” and their sole purpose is to drink in as much light as possible to fuel the growth of the more recognizable serrated leaves, which will begin to grow over the next week. After that you’ve got a proper seedling, and in a few weeks it will be ready for a bigger home!

For further guidance and resources about growing cannabis, see our Beginner’s Guide to Growing Marijuana, or our guide to growing for personal use.

Cultivating a Healthy Cannabis Seedling

The seedling that emerges will be as tender as an infant, and susceptible to diseases and cross-contaminations, so keep your germination station as sanitary as possible, and wash your hands before handling them. Avoid rubber or latex gloves at this stage as they have too much grip, and one wrong movement of your finger could accidentally grab and tear the soft plant material.

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A seed’s health may be fortified by soaking it with a solution rich in micronutrients, like liquid seaweed. Be advised, however, that these will be very diluted solutions. Carefully read the mixing instructions of any product you purchase.

Seedlings can be protected against certain diseases by including worm castings in the medium. Research out of Cornell University has shown the microbial life in worm castings colonizes the seed’s surface, making it more difficult for pathogenic microbes to establish themselves.

Disclaimers and Downsides Regarding Found Seeds

It’s worth pausing to remember that seeds shouldn’t wind up in your bag of cured, smokable cannabis. So before planting anything, let’s assess what this seed is, and how it got there.

Only female cannabis plants produce flowers, and if they are pollinated by male plants, then they produce seeds instead. So all the cannabis we smoke is from unpollinated female plants — or nearly all of it.

When female plants are stressed — for instance, by drought conditions or nutrient problems — an evolutionary alarm can induce them to produce seeds with only their DNA. The problem with these “hermaphrodite seeds” is that the offspring, having benefited from this process, will be more prone to repeat it. If this is how a seed got in your bag, it can result in seedy weed, even under the closest care.

A seed is not guaranteed to sprout at all. Examine the seed for any obvious health issues. Immature seeds are lighter greys-to-green, while mature seeds are darker tan, brown, or even black. A healthy shape is a teardrop or nearly round, while bunk seeds will appear shrivelled or irregular. Finally, healthy seeds have a hard, whole shell, while cracked or brittle shells will likely not sprout, or produce a less healthy seedling.

A found seed is also not a guarantee to produce a replica of the strain you smoked, and may present latent traits from the strains it was bred from. Cultivating a complete copy of a phenotype is called “cloning,” and the cloning process must begin with a living plant, not a seed.

Remember, it could also just result in a male plant, which won’t grow any buds. None of this is guaranteed to happen with a bag seed, it’s just more likely than with a stabilized seed from a producer.

Summary

If you want to germinate a seed you’ve found, begin by soaking it overnight in water to saturate it, and soften the shell. Micronutrient solutions can be mixed in at this stage to fortify the health of the seedling (if you do, be sure to read the mixing instructions on the label).

The “paper towel method” is the most accessible way of germinating almost any seed. Once a taproot has emerged (after about a week) plant the seed into a small container with your chosen grow medium, like soil. Do not fertilize at this stage, as the seed and resulting seedling are very tender, and concentrated fertilizers are abrasive chemicals. Within another week, “sucker leaves” will sprout, synthesizing light to produce further growth.

Remember, found seeds are not always healthy or even viable. A healthy seed has a hard, unbroken shell and a dark color, while brittle or misshapen seeds may not produce a healthy plant, if anything at all. A found seed is also not guaranteed to replicate the precise phenotype of that cannabis you found it in.

That said, it’s almost always worth trying, and experimenting with whatever results. Growing cannabis can be an enriching experience, and perhaps even save you some riches. As long as you know what to look for from a seed, and how to handle them, finding one in your bag could be a golden ticket.