How Long Does It Take A Weed Seed To Grow

Learn how to germinate marijuana seeds on your FIRST try! Reach 100% seed germination rates by using our step-by-step tutorial. I PLANTED 20 SEEDS IN THE GROUND TUESDAY. NOTHING CAME UP YET… AM I BEING IMPATIENT?:evil: The idea of the following article is to provide you with valuable information about the growth of marijuana, its phases and some tips. First, we recommend

How to Germinate Cannabis Seeds

An in-depth guide on how to germinate cannabis seeds. Discover different techniques on how to germinate marijuana seeds to ensure a successful cannabis crop.

Everything has a beginning.

Cannabis seeds, like all seeds, must undergo the germination process before it can grow into a weed-yielding beauty.

Countless cannabis germination guides litter the internet. However, none go as in-depth as our seed germination tutorial. Read along to learn how to germinate marijuana seeds like a pro.

You’ll discover everything you need to know about the art of germinating marijuana seeds. From the necessary equipment to different germination methods and everything in between, we’ve got you covered.

The Chemistry Behind Cannabis Seed Germination

Cannabis seeds require the right conditions to sprout.

Without the proper temperature, moisture level, or oxygen saturation, weed seeds will not germinate. Although you can readily germinate seeds outdoors, nothing beats controlled germination indoors.

Let’s take a look at the three primary elements that influence the germination rates of marijuana seeds.

Water

Water is the key player in the process of germinating marijuana seeds.

The outer-layer of the cannabis seed acts as a protective casing that provides a two-fold defense — prevent damage to the inner embryo and prevent minimal moisture from premature germination.

However, if the marijuana seed is saturated with water, it will eventually absorb the moisture and kick-off the germination process.

Oxygen

Once the embryo activates through water saturation, it requires oxygen to jump-start the respiration process. Oxygen fuels respiration, which unlocks food stored within the embryo.

Energy

After the respiration process, the embryo consumes the food stores, which in turn produces energy. Energy is the necessary product that propels the germination stage onwards.

Warmth

Even if cannabis seeds have access to water, oxygen, and energy, it’s all for nothing unless it has access to warmth.

As long as cannabis seeds experience 72-78°F during the initial germination process — they’ll burst forth from the ground and spread their primordial leaves under the sun or artificial light.

The three most important elements for successful weed seed germination

Why It’s Important to Germinate Weed Seeds Indoors

At its core, the germination process lays the foundation of cannabis plants.

Overall, marijuana plants will underperform without proper germination techniques compared to those that experienced ideal conditions during the germination process. Therefore, it’s always best to harness an indoor environment when germinating marijuana seeds.

What to Look For Before Germinating Marijuana Seeds

Before you begin the germination process, there are a few things you must look for.

Let’s take a brief look at each.

Damaged Marijuana Seeds

Ordering feminized or autoflowering cannabis seeds online is the best way to acquire top-shelf genetics.

The seeds, however, may experience a few bumps on the road during the shipping process. With this in mind, you must look over each seed to ensure there isn’t any damage.

As long as each weed seed is undamaged, the germination process will be smooth.

The Cannabis Seed’s Age

Next, it’s a good idea to write down the date on each seed pack once received.

By doing so, you’ll have a clear understanding of a seeds’ age. Like all things, cannabis seeds lose their luster as the years go by. Cannabis seeds may remain viable for decades. However, germination rates decrease over time.

Therefore, you should only germinate seeds that are properly stored for a maximum of 6-months.

The Cannabis Seeds Color

Lastly, you must check the cannabis seed’s color.

Cannabis seeds come in different sizes and exhibit various markings across the outer seed coat. However, the seed’s color is an excellent indicator that represents seed maturity.

In other words, light green to pale white seeds are immature and are likely unviable. Therefore, always make sure that your cannabis seeds are light to dark brown color before germination.

Take a close look at the seeds that you receive for damage or discoloration

Should You Use a Seedling Heat Mat?

Many new cannabis cultivators ask if they should incorporate a seedling heat mat into the equation.

Although seedling heat mats are excellent tools to ensure fast germination, they are not always necessary. Seedling heat mats work by producing a gentle warmth that won’t rapidly dry cannabis seeds during the germination process.

However, they may be overkill if you utilize them during hot days, such as those during the summer months. Alternatively, they are essential during colder months during the winter. Therefore, you can choose to harness a seedling heat mat based on the time of year that you choose to germinate marijuana seeds.

Three Easy Methods To Germinate Cannabis Seeds Indoors

Now that you have a broad understanding of germinating marijuana seeds let’s get some weed seeds poppin‘ with a few different step-by-step tutorials.

You’ll have a better idea of which germination technique to choose once you’re done reading this section.

1. How to Germinate Marijuana Seeds in Soil in Five Easy Steps

If you want to germinate weed seeds au natural — there’s no better option than using soil.

Here’s a list of what you’ll need to germinate cannabis seeds in soil:

  • Feminized or autoflowering cannabis seeds
  • Eco-friendly “starting” container
  • Soil
  • Water
  • Label
  • Heat mat (optional)

As you can see, the list above isn’t extensive in the least. In other words, germinating marijuana seeds in soil is incredibly affordable.

Step One

First, fill an eco-friendly starting container with soil.

The golden rule? Don’t pack down the soil. Remember, the soil you choose must exhibit a loamy consistency. Hardpack soil does not allow proper water drainage and oxygen circulation, which, as you learned previously, are critical components for the seed germination process.

Furthermore, if you choose to use a heat mat, place the eco-friendly containers on top to warm the medium adequately.

Step Two

Label each container.

The last thing you want to do is forget what seed you placed into each container — especially if you’re germinating multiple cannabis strains at once.

Step Three

Now, it’s time to sow the cannabis seed.

Create a small hole that’s roughly 0.25-inches (6mm) deep. Gently place the seed inside the hole and cover it. It does not matter which direction you put the seed — believe us when we say that the seed and gravity will sort things out.

See also  Weed Seed Stages

It’s important to note that each eco pot should contain a single cannabis seed.

Step Four

Gently pour a small amount of water into the area where you buried the cannabis seed.

At this point, you must ensure that the cannabis seed never dries out. Once the germination process begins — there’s no turning back. Therefore, allowing cannabis seeds to dry will guarantee inadequate germination or premature death.

Ultimately, you must monitor the soil and continuously apply water until the seed sprouts.

Step Five

The final step is patience.

The moment the seed is planted, most beginners ask: how long does it take to germinate cannabis seeds, or how can I germinate my seeds fast?

Healthy cannabis seeds typically break the surface within 2-4-days. Older seeds, however, may take upwards of 12-days to sprout.

The germination phase is an incredibly vulnerable moment for cannabis seeds. Therefore, Do notwe repeatdo not dig up the seed to “check on it.”

This is what you can expect after you successfully germinate your cannabis seeds in soil

2. How to Germinate Marijuana Seeds Using Paper Towels In Five Easy Steps

One of the most popular germination techniques is the paper towel method.

Here’s a list of what you’ll need for this low-budget method:

  • Feminized or autoflowering seeds
  • Dinner plate
  • Paper towels
  • Spray bottle
  • Labels
  • Heat mat (optional)

Now that you’ve gathered the necessary supplies let’s get crackin‘.

Step One

Place two to three sheets of paper towels on top of a clean dinner plate. If you decide to use a heat mat to increase the temperature, place it under the dinner plate.

Step Two

Label the dinner plate with the name of the cannabis strain of choice.

Step Three

Place up to 10-seeds per plate.

You must make sure that a minimum of 1-inch adequately separates the seeds.

Step Four

Spray water on the seeds until the paper towels are completely saturated. Once done, place a new layer of 2-3 paper towel sheets on top of the seeds. Use the spray bottle to soak the new paper towel addition.

Remember: the paper towels must always remain saturated with water. If allowed to dry, the cannabis seeds will fail to germinate.

Step Five

The germination process should occur within 24-48-hours. After 48-hours, gently peel back the upper paper towel section. If the seeds germinate, you will see cracked-open seeds with an emerging radicle.

At this point, it’s time to move the germinated seed to its new home with a pair of tweezers. This final step requires extreme care because the radicle is fragile, and if broken, the embryo within will die.

Be careful when you use the paper towel method and make sure to label each plate

3. How to Germinate Marijuana Seeds Using Rooting Cubes in Five Easy Steps

Germinating weed seeds with rooting cubes is the ideal method for beginners and professionals alike.

Overall, rooting cubes provide the ease of the paper towel method and the soil technique’s efficiency. Let’s take a look at everything you need to when germinating marijuana seeds with rooting cubes.

  • Feminized or autoflowering seeds
  • Rooting cubes
  • pH 6.0 water
  • Rooting tray
  • Labels
  • pH meter and pH up or down
  • Heat mat (optional)
Step One

First and foremost, place the rooting cubes in the rooting tray. If you decide to use a heat mat, place the tray on top.

Step Two

Next, label each rooting cube or tray with the appropriate name of each cannabis strain.

Step Three

Use a pH meter and pH solution to achieve a pH of 6.0.

The amount of water you pH depends on the number of rooting cubes. Start with one cup of water if you are germinating less than ten seeds.

Germination cubes require a pH of 6.0 because they are typically made from peat moss, rockwool, or other soilless-based mediums. Therefore, a pH of 6.0 will ensure the best possible results once the seed germinates.

Step Four

Each rooting cube is equipped with a pre-made hole.

Place one cannabis seed per hole. You may tear off a small piece of the substrate to cover the opening. Once done, saturate the rooting cube with pH 6.0 water.

You must make sure that the rooting cube never dries out. Remember, cannabis seeds must remain moist until they sprout to the surface.

Step Five

Once again, patience is the final step when you learn how to germinate cannabis seeds with rooting cubes. Overall, cannabis seeds may emerge from the rooting cube within 2-4-days. However, germination may take as long as 7-days.

There are a lot of rooting cubes to choose from, but the germination process remains the same

How to Germinate Old Cannabis Seeds

Now that you understand how to germinate healthy cannabis seeds let’s quickly discover how to germinate old marijuana seeds.

As you become infatuated with the world of cannabis, you’ll soon begin to stack an extensive seed collection. Don’t worry; we’re all seed hoarders at heart because there are so many incredible cannabis genetics out there.

Eventually, however, you’ll notice that you have more than a few old cannabis seeds. Luckily for you — all is not lost.

Here’s our tried and true technique to give your old seeds a boost during the germination process.

Cannabis Seed Scarification

Scarring cannabis seeds is incredibly simple.

All you need is a nail file or a piece of sandpaper. Use the file or sandpaper across the surface of the seed in question. You do not need to use an immense amount of force, but instead, a few good scrapes to scar the seed’s outer shell will do.

The point of seed scarification is to allow water to penetrate the seed coating easily. By doing so, the embryo receives a jump start that initiates the germination process.

Once the seeds are scarred, you may choose one of the three above mentioned techniques to complete the germination process.

A few readily available tools to get your cannabis seed scarification done

The Best Way To Germinate Marijuana Seeds

Now that you’re done reading this guide on seed germination — which method will you choose?

The soil, paper towel, and rooting cube methods are all tried-and-true and provide excellent germination rates. Remember, cannabis seeds are an investment, and you must use the best germination method possible to ensure a healthy cannabis crop.

See also  How Long Does It Take To Grow Feminized Weed Seeds

You have one chance to germinate each seed the right way, and by using this guide, you’ll make each seed count.

HOW LONG DOES IT TaKE SEEDS TO SPROUT

12-24 hours to crack if the seeds are fresh but can take up to 2 – 3 weeks for older seeds.

if they are in soil then it deppends how deep they are?? give them 7 days im sure they will break through the soil in that time.

ActinUhFool420
Well-Known Member

yea your being a little impatient. When u germinate seeds in a paper towel it usually take 1-4 days for the seed to crack, and another 1-2 days before u see any decent taproots, then u plant them and another1-3 days they will pop from the soil. You just don’t see the work going on beneathe the surface. Keep it watered. Give it about a week. If ya don’t see anything in a week, week in a half, then ya have something to be worried about.
Until then. your gonna need time and patience, expecially if your working outdoors. You got til September-October buddy.

Mr. Pif
Active Member

I hope so. Im ready to get it poppin. They cant be more than an inch deep. Im not sure if they’re old seed or not. All different types of weed tho, and different shapes and sizes. Some brown, green, black. Preciate it

NationalForest420
Well-Known Member
Canna*Nation
New Member

The paper towel baggie method takes me 2 days to see a tap root.

Ph’ed water all over a paper towel placed in a baggie. throw the seed up in the thing and close the damp paper towel over the seed. DON’t close the bag. Place the bagggie on top of a warm place like a cable box or p.c. Place a bowl over the bag to trap heat. Over night the seed will POP. The tap root soon follows. 100% germ rate for me.

I’m not new to the board. Just a new name is all.

Watch that GT and FDD. hahaha

Mr. Pif
Active Member

All i did was sit them in at cup of water and i waited to all of them stopped floating and hit the bottem. I fretilized the ground/soil 2 days before hand then i planted the seeds and watered the dirt. They’re in a place that gets good shade and very good light depending on where the sun is

Canna*Nation
New Member
lehua96734
Well-Known Member

All i did was sit them in at cup of water and i waited to all of them stopped floating and hit the bottem. I fretilized the ground/soil 2 days before hand then i planted the seeds and watered the dirt. They’re in a place that gets good shade and very good light depending on where the sun is

Mr. Pif
Active Member
ActinUhFool420
Well-Known Member

I hope so. Im ready to get it poppin. They cant be more than an inch deep. Im not sure if they’re old seed or not. All different types of weed tho, and different shapes and sizes. Some brown, green, black. Preciate it

Your probably not gonna get all 20 seeds growing. The seeds you wanna use are the thick, “beefy” ones. usually brown in color with “tiger stripes” on them. also most regular brown seeds pop too. But defiantly not the lil green ones. Those are immature seeds

yes the soil will be to hard. You best bet to assure outdoor growth: dig a big enough hole to fit a large pot. Dispose of the dirt u dug up and fill the hole with a top soil mix or organic mix from your local nursery or hardware store. Make sure the area you plant the seeds in is an area that has loose soil that becomes spongey when wet, holds water well, and drains well.

But then again pot will almost grow anywhere if the conditions are OK. But anything to make it more suitable for the plant, the more chance of maximum growth with maximum yield.

If ya got anymore questions hit me up on AIM: S/N “ActinUhFool420”

easygrinder
New Member

for me it takes approx 36 hours to properly germinate and then 24 hours to sprout and start showing some greenery

ActinUhFool420
Well-Known Member

for me it takes approx 36 hours to properly germinate and then 24 hours to sprout and start showing some greenery

yea 36 hrs hrs and 24 sounds about right if u purchased the seeds from a vendor, but if im not mistaken he said he had bag seeds and he didnt know if they were old.

I’m on a grow process now, growing bag seed also, and it took from February 26-March 7th before i seen anything pop from the soil (after i germinated in a paper towel and buried the taproot)
I’m just stating from my experience.

420weedman
Well-Known Member

the best thing would be to start them in little cups with good potting soil

SickboyDilligaf
Well-Known Member

yea your being a little impatient. When u germinate seeds in a paper towel it usually take 1-4 days for the seed to crack, and another 1-2 days before u see any decent taproots, then u plant them and another1-3 days they will pop from the soil. You just don’t see the work going on beneathe the surface. Keep it watered. Give it about a week. If ya don’t see anything in a week, week in a half, then ya have something to be worried about.
Until then. your gonna need time and patience, expecially if your working outdoors. You got til September-October buddy.

Old thread but Incase of a search like me. Takes 1 day to soak. 24-36 hrs to crack. I’ll let you know on the soil pop once planted. Been 24 hrs hopping in am it will be sprouted.

HOW LONG DOES IT TAKE TO GROW A MARIJUANA PLANT?

The idea of the following article is to provide you with valuable information about the growth of marijuana, its phases and some tips. First, we recommend you not to harvest your plants as soon as possible. Each variety and each strain follow a life cycle that we must respect if we want to achieve optimum development and a quality product.

The time of germination, growth and flowering of marijuana is relative; each variety follows a different tempo, even each strain, which is why it is impossible to determine or pre-establish a generic time for cannabis.

How long does it take to grow marijuana?

Anyway, we will try to give you some advice to guide you as best as possible and that you can control the growth of your crop. If we want to specify about the life cycles of the cannabis plant, we must highlight three main phases: germination, growth and flowering.

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The germination process.

First, there is the germination process. This is usually the process that people give least importance to, but, it is of vital importance because if we do not do it correctly we can spoil the seeds. The techniques for germination are very diverse, from the typical technique that uses a napkin or wet paper, to the use of stimulators or planting the seed directly in soil, on a jiffy disc or in a glass with water.

Marijuana seed germination

The best thing to do is to use the napkin or wet paper and, as for the time, to re-emphasize that it is relative. It will not only depend on the conditions of water, humidity or oxygenation, we will also have to consider the quality of the seed, its fertility, the variety or strain in question. However, the seeds usually take between 24 and 72 hours to germinate. Sometimes we find seeds that can take 5,10 or 15 days to arrive.

The Growth or Vegetative Stage:

Secondly, we find the growth or vegetative phase. This phase is central to the development of the plant and therefore one of the main concerns for cannabis growers. It is in this phase, when the seed has been germinated and planted, in which the plant acquires its morphology and its optimal size to later be able to produce the flowers (our harvest).
During this phase the plant needs a lot of direct sun-light as it is developing.

Now, we are in the greatest photoperiod of the plant, between eighteen hours of light by six hours of darkness. The hours of darkness are also of vital importance as they will produce the correct exchange of gases. This exchange is essential for the optimal metabolic development of the plant cells of our strains. The length of time that plants should be growing will be determined by various factors such as environmental (temperature, light, humidity), plant (variety and strain) and external factors (fertilizers, soil quality or the grower’s experience).

Determining factors:

Another factor will be whether the plant is regular or autoflowering. In the second case, all phases are shortened, as they are genetically engineered plants designed to develop as quickly as possible. On the other hand, it will also depend on whether we plant it outdoors or indoors. It should be noted that in indoor cultivation also shorten the phases, and depending on our luminous power, the times will be lengthened or shortened even more. Therefore, to pre-establish the time of growth is very complicated; to general features we could say that in an interior the autoflowering seeds we would let them grow between 3 or 4 weeks, depending on the culture technique, and 6 or 8 weeks for the feminized or regular seeds.

The flowering phase:

On the other hand, we have the third phase, flowering. This phase is the last stage of plant development and one of the most important. The beginning of this period will be determined by the hours of light, outdoor, or by the development of the plant during the growth phase, indoor. Since the interior can control the moment in which we want it to start blooming, we must wait for the plant to have the right physiognomic characteristics to produce good buds.

In autoflowering varieties, the beginning of the flowering phase will mark them themselves, while in feminized or regular seeds, we should be the ones who, through the change of photoperiod, point out when they should start to flower (setting 12 hours of light and 12 hours of darkness). Another issue is outdoor, where the calendar will determine the tempo. As for determining the end of the flowering process, point out that it is something completely subjective. There are people who prefer to wait more or less, although there are certain factors that can give us a general idea.

End of Flowering and Harvest

End of Flowering and Harvest:

Firstly, the development of buds, which should fatten to cover most pistils. Secondly, the correct maturation and oxidation of the buds, which will be determined by the color and shape of the pistils and trichomes, which may be orange or brown in color. Finally, the hardness of the bud can also be an indicator of the time of cutting, although there are varieties that produce softer buds and therefore this indicator does not always work. However, we can point out that autoflowering plants will usually complete their flowering in eight weeks, whereas feminized plants can take up to ten, twelve or even thirteen weeks.

Conclusions:

By way of conclusion, as we have seen throughout the article, the duration of the periods is very relative and depends on a great variety of factors. However, some generic and approximate calculations can always be offered to guide the grower.

We establish, therefore, that for the correct development of an autoflowering marijuana plant, we must wait approximately three months; while for a feminized plant, the period is extended to four or five months. These have been some advices to help you with your crop, since Gea Seeds recommend you perseverance and a lot of patience to get the best result.

8 Comments

RD 24 October, 2019, 6:29 pm

I was told that once a plant has flowered that they die, it can never flower again, is this true

GeaSeeds 25 October, 2019, 7:48 am

Hello RD! Cannabis plants can live more than 5 years!

Kenpachi 23 June, 2020, 2:34 am

I have been doing this from 3 months but yet no flowers on my plants….. I’m growing them outdoors…. And seeds are regular…. Can u give some advice when will it start flowering…. Today 3 months are over since I have put seeds in wer napkin……

GeaSeeds 23 June, 2020, 9:54 am

Hello Kenpachi!
The flowering does not depend on the number of months since the germination.
The flowering depends on the hours of daylight.
In August and September (Northern Hemisphere), when it starts to decrease the hours of the sun, the plant will start to bloom.

Arefff 2 October, 2020, 1:15 pm

My bush has just started flowering, will it take me a few weeks to cut out a garden?