Weed Seed Stages

Are you thinking about growing some marijuana plants from the comfort of your own home? Here’s everything you'll need to know about cannabis plant growth. Read, "Stages of Marijuana Growth," the latest post from the Green Rush Packaging blog. Green Rush Packaging is your premier source for the absolute best in cannabis packaging. The seedling stage of cannabis plants follows on from germination. Read more about the nutrition they need and the kind of light they prefer.

The Growth Stages of a Cannabis Plant

Growing marijuana may sound like a major endeavor, but really it can be as easy as you want to make it. Still, it’s a good idea to know at least a little bit about what to expect before you begin. Having a basic idea of what a “normal” marijuana plant’s growing season will look like is an excellent way to get started. Keep reading for the basics of growing marijuana.

The Growth of a Cannabis Plant

What Happens During Growth?

Light is where plants get their energy. Thanks to the chlorophyll in all plants, they perform a process called photosynthesis, which involves taking in the energy provided by light. They also use water and carbon dioxide to convert that light into energy.

The leaves of your plants help process all the energy needed for growth by trapping light and using it to change water into a particular type of sugar called glucose. Having some big, green, healthy leaves allows your plant to take in and distribute even more of these necessary sugars, especially if those leaves are exposed to lots of direct sunlight. This is why your plant will grow faster and faster; the bigger the leaves, the more energy it can take in, and the more fuel it has to grow. J ust make sure your growing the plant in an area of your home with plenty of sunlight and watering it as necessary, and you’ll be enjoying a hit of your first harvest in no time at all.

With a Pot for Pot, your marijuana plant receives everything it needs for growth with light from the sun, water from the tap, CO2 from the air, and a specially selected nutrient mix.

What do the Plants Need?

Now that you know why your plants need certain elements to grow and how it utilizes those specific elements, it’s easy to see how a Pot for Pot makes the process simple. The main growing components that m any marijuana growers worry about are water, light, CO2, and nutrients. But our home-grown marijuana experts have ensured that all those aspects are covered as part of our specialty grow kits to help make the process as easy as possible for everyone interested in trying their hand at growing cannabis.


It’s crucial that you don’t give your plants too little or too much water. Underwatering can deprive your plants of the fuel they need to survive while overwatering can “drown” them and encourage mold to develop. It’s tough to give perfect advice about watering since it really varies in different growing environments.

a Pot for Pot features everything you need to properly water your plants, such as:

  • Watering and feeding schedule
  • Pot drain saucer
  • Aeration topsoil mix
  • Adorable watering can


Light is essential for all plants, but it is especially important for marijuana plants because they are photosensitive. This means that traditional strains will need a specific light schedule to reach their flowering stage. The light schedule needs to be uninterrupted and consistent, or else your plants will get confused.

A Pot for Pot has simplified this process as well, by using auto-flowering strains. Now instead of worrying about complicated lighting schedules, you can focus on watching your plant grow.

The main thing you need to know about CO2 is tha t it helps your plant produce sugars for energy. The other thing to know is that most plants do fine on their own as there is usually plenty of CO2 around naturally.


Your plants are going to be hungry for the right nutrients during different stages of growth. This can be a bit tricky since feeding nutrients to plants is not quite like feeding humans. It is easy to do too much or the wrong combinations and actually hurt your plant.

Once again, a Pot for Pot removes this worry with a feeding schedule and specially formulated nutrients such as:

  • Premium Mycorrhizae to help roots absorb maximum nutrients
  • Premium Microbe Food Supplements
  • Beneficial Bacteria
  • Specially formulated Superb Soil

Are you tired of running out of weed and want to start saving money by avoiding repeated trips to your local dispensary? Take a look at the stellar growing kits from a Pot for Pot today to enjoy the fun, cheap, and rewarding experience of growing your own cannabis.

How Long Does Marijuana Take to Grow?

The total time it takes for a marijuana plant to go from a single seed to a fully harvestable plant depends on a wide range of factors, including t he plant’s genetics, the plant’s desired size, and where someone grows their plant. It also depends on how well a grower is meeting the plant’s unique needs for water, light, and nutrients at each phase of the development cycle.

Different cannabis growing sources will provide readers with a range of growth timelines for when their marijuana should be ready for harvest. Generally speaking, however, it will take anywhere from 4-8 months to grow a cannabis plant from start to finish in a regular home-based environment. That said, those with the benefit of having a fully dedicated indoor grow room may see their cannabis plants starting to flower after only a handful of weeks.

The Marijuana Growth Stages

There are several stages worth thinking about regarding marijuana plant growth: germinating, seedling, vegetative (or the “growth” stage), pre-flowering, flowering, and harvesting. Below is a short description of the first five stages of marijuana development. We’ll get into more detail about the harvesting stage in a later section, but first, future home-growers need to understand what to expect regarding the primary growth stages of their cannabis plant.

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The first stage of the marijuana growing process begins with the cannabis seed. The seeds you use should feel hard and dry and be a light-to-dark-brown color. If the seeds are more squishy and have a white or green coloring, you should throw them away, as they’re likely underdeveloped and won’t germinate properly. To germinate the cannabis seeds, keep them in a wet, dark environment until they sprout. There are a few practical ways for growers to do this. Some prefer keeping them in a small cup of water in a shaded area, and others like to wrap the seeds in wet paper towels and set them aside in a cabinet.

This stage is a relatively quick one and will typically take between 3-10 days to complete. At that point, the seeds will have released a single root- called a tap root or radicle- that will grow into the ground, along with a new green stem that sprouts upward as the plant starts to break away from the protective casing of its seed. By the end of the germination stage, you’ll have a germinated or sprouted marijuana plant that’s ready to be put into a pot of soil.


The seedling stage is when your plant is at its most vulnerable, but it doesn’t last very long. It takes between 3-6 weeks for photosensitive plants (and is much shorter for auto-flower strains). At this fragile stage of development, the plant seedling will require between 18-24 hours of sunlight, moist soil, and a mild level of humidity to begin its rapid growth. It’s essential for growers to carefully follow a watering schedule during this stage to ensure the plant receives an acceptable amount of hydration. Because the plant’s root system is so tiny at this stage, it can be easy to drown it by overwatering.

During the seedling stage, the plant will start to develop more traditional-looking cannabis leaves containing anywhere between 3 and 13 “fingers,” with an average of 5-7 fingers per leaf that are a vibrant green in color. At this point, it’s essential to ensure that its growing environment is kept clean and free of any excess moisture to prevent the plant from becoming moldy or diseased. Once the cannabis plant develops leaves with a “full” number of fingers, it will be considered out of the seedling stage and be well into its vegetative growth phase.


The vegetative stage of development is when plants grow the most in their lifecycle , so it’s at this point you may need to relocate the plant into a larger pot to accommodate its need for growing space. At this point, you’ll practically see your plants getting bigger in front of your eyes! This phase will last between 1 and 2 months for a photoperiod schedule and much less time for an auto-flowering strain, which only needs about 10 to 12 weeks total from start to finish. Pay attention to the growth plan, as it will likely change during this time, and you may need to start adding nutrients.

Once again, ensure that you’re carefully sticking to a proven watering schedule, as plants at this developmental stage will require an increased amount of water to support their rapid growth. Also, be sure that, when watering, you’re applying the water towards the outer edges of the plant’s pot. Because the root system will be growing rapidly, it’s essential to help ensure their tips receive more access to water so they can effectively absorb it.


The pre-flowering stage of the marijuana life cycle is the transition stage between its vegetative and flowering phases. It takes between 1-3 weeks to occur , depending on the growing conditions and genetics of the cannabis plant itself. As the plant goes through this stage, you’ll be able to determine its sex based on the shape of the pre-flower that developed at the plant’s nodes.

Females will have two pistils (containing the flower’s reproductive parts) that grow on the buds, while males will develop small green sacks filled with pollen. Casual home-growers may not need this information, bu t it’s important for those looking to grow and breed multiple plants for a larger marijuana crop.


This is when your plants start producing their delicious, THC-filled buds. It lasts anywhere between 6 and 10 weeks for photoperiod plants and just a few weeks for auto-flowering strains. This stage is often the most complicated for marijuana growers because ordinary marijuana plants grown indoors will need to be triggered into flowering; however, this is not the case with seeds used for a Pot for Pot. Your kit includes a discount coupon to purchase auto-flowering seeds that will naturally enter the flowering stage without any help from you. Pay attention to any changes in the feeding schedule though.

Prepare for Harvest

When the flowering phase slows down, it’s time to prepare for the harvest. Check out your plant’s pistils; when half to most of them are brown, your plant is ready to harvest. A Pot for Pot makes sure you are prepared for this stage as well – use the included scissors to harvest your buds, and find additional details about when and how to harvest printed on the back of your scissors packaging.

Once your buds have been harvested, you’ll need to go through a drying process to remove their moisture and prevent the potential growth of bacteria and fungus. Drying will effectively preserve the life of your cannabis crop and shouldn’t be rushed. Going through the process too rapidly can cause problems and even result in harsh-hitting cannabis.

For the most successful harvest, it’s a good idea to do a little research before trying it the first time. Consider checking out the a Pot for Pot blog for more information on everything you’ll need to know about growing a successful marijuana crop in your home.

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If you’d like to try your hand at growing cannabis from the comfort of your own home, take a peek at the stellar selection of top-quality growing kits proudly offered by the cannabis industry experts at a Pot for Pot today.

Stages of Marijuana Growth

Like any other plant, cannabis goes through different stages of growth and each of these growth stages require varying amounts of nutrients, water, and light. If you plan to grow marijuana plant, some of the basic questions that will cross your mind would be related to the stages of growing marijuana, how long each stage lasts to provide what the plants need at the right time.

Marijuana Seed germination

The first stage of growing marijuana is seed germination. For cannabis seedlings to germinate, they will need humidity, air, water, and a warm temperature. Place the seeds in a dark, humid, and warm place. As soon as the seeds open and start showing the first tap roots, put them in a small pot with the next medium for growing. The tap root will start to develop and produce their first oval leaves known as cotyledons.

Marijuana Seedlings

There are several stages of growing marijuana outdoors and the second one is the seedling stage. The seed opens and a pair of small leaves appear. Next, the little plant starts producing single serrated leaflets. While the seedling grows and develops, new leaves with more leaflets appear until the plant starts producing digitate leaves that have serrated borders. These are commonly known as the cannabis fan leaves. This stage may last up to 3 weeks.

Marijuana Vegetative stage

The vegetative stage comes next in the stages of marijuana growing. Here healthy cannabis plants will grow in size and height given the proper conditions. At some point, the plant will grow only stems and leaves. It might also start developing pre-flowers which indicate the plant’s sex. However, the buds will only start developing as the days grow shorter, usually in fall.

Depending on the desired size of the plant, most cannabis growers keep their indoor plants in this stage between 4 to 8 weeks. Depending on the strain, the plant may start flowering starting the 4th week of this stage. But these plants will have a smaller size. Growers who give their plants more time to vegetate will grow larger plants that may produce higher yields. When growing plants indoors growers must change the timer of the lights to a 12/12 hours schedule to stimulate the flowering stage.

Marijuana Flowering stage

The flowering stage for indoor plants can get triggered by changing the light timer to a 12/12 schedule. It’s very important not to interrupt the hours of darkness of the plants so they will flower correctly. Any interruption might confuse the plant and cause a delay in flowering. The plant might even go back to the vegetative stage or start developing hermaphrodite flowers, which is something growers don’t want to happen.

For outdoor plants, they usually enter the flowering stage as the days grow shorter. Autoflowering cannabis strains don’t require a photoperiod change for them to start flowering. The vegetative stages of outdoor plants generally last around 4 weeks, after which they will automatically change stages.

Marijuana Ripening

The cannabis buds will gain the most weight in the last few weeks. At this time, they become sticky to the touch and become very smelly. When this happens, growers can almost start harvesting. The pistils of the cannabis plant at this stage, will start showing cream, brown, and white colors. They will also curl inwards and get covered with trichomes. Similarly, the trichomes will change colors too. It’s important for growers to pay close attention to all of these changes as they are the best indications for knowing when it’s time to harvest.

Where to plant Marijuana

Before growers can pack their flowers and buds using GreenRush Packaging , they must first grow their plants successfully. Knowing where to plant plays an important part in this.


Some growers grow their cannabis plants in the spring so they can harvest in the fall. The most crucial step for outdoor growers is to choose the right soil. The right soil should contain organic materials and plant nutrients including earthworm castings, forest humus and microbes. There are also soils classified as “super soils” because they either eliminate or minimize the need for additional plant food or nutrients. Investing in cannabis-compatible soil is the best investment for outdoor growers.


This is the best option for those who want to grow their plants in a space with controlled conditions. A greenhouse will provide bright sunlight needed to raise a healthy plant while offering better controls in terms of the plant’s environment. For instance, darkness is crucial for the plant during some of the growth stages. A greenhouse will provide the grower with the control to use roof covering systems or blackout shades. Also, the plants can receive protection from the elements in a greenhouse along with protection from pets and wild animals. However, a greenhouse costs a lot and it isn’t ideal for budget-conscious growers.


Indoor growers will have the flexibility to plant their seeds any time of the year as long as they manage the indoor conditions like the humidity, temperature, air quality, and light. In particular, light management is very important because plants cannot thrive without enough light. Unlike outdoor gardens where there is an abundance of sunlight, with indoor plants, growers must invest in a lighting system.

Best time to plant Marijuana

The best reminder that it is time for growers to start outdoor growing and seed germination is the Spring Equinox. During this time, the sun will be high in the sky. Growers must make sure that all of their plants are outdoors by the Summer Solstice. When the autumn season comes, the weather will start changing as the sun will descend in the sky. By this time, cannabis plants should have already developed their sticky and sweet buds. The urge to harvest can be very tempting but it’s recommended to wait until around the Fall Equinox to harvest.

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After harvesting, growers must have their harvests cleaned, dried, and cured, well before the Winter Solstice. After all of these important steps, they can start making other products like topicals, tinctures, cannabutter, and more. After growing, producing and packaging different cannabis products, growers can now kick their feet up and relax during the winter after a long and productive growing season.

Seedling Stage

The seedling stage of cannabis follows on from germination. You will be able to tell when it has begun when your shoots start to develop a second set of leaves. These will look different to the embryonic cotyledons. They will be bigger, with a long serrated edge – a look that is much more associated with cannabis plants. However, these new leaves will only have one “finger”, instead of the 5 or 7 normally seen in adult leaves.

After this your cannabis plants will start to grow a third set of leaves, these will tend to have three fingers. This will be followed by more and more leaves, with each one beginning to resemble the expected cannabis leaf shape more and more. As mentioned, the most common and expected is a 5 or 7 finger leaf, but do not be surprised if you end up with 9 or even 11 fingers!

The seedling stage is usually over when you start getting leaves with their maximum amount of fingers. Other indications will include a stem with a thickness of around 4-6mm and a height of around 3-4 nodes. During this stage the seedling will also try and develop a strong root base, this will allow for strong future development and nutrient intake. Depending on where you grow, the seedling stage can take roughly 2-3 weeks indoors and 4-6 weeks outdoors.

As an extra tip, it is usually advisable to set up a small, weak fan to blow on at your seedlings. This will help them gain fresh air and encourages strong growth. It does this by giving the plant something to resist. As the fan blows at your cannabis plants, your seedlings will recognize that they need to put extra effort into growing and developing their structural integrity to withstand possible future sources of resistance.

You will know the time to transplant your seedling to a larger grow medium when you start seeing signs of its developing root base. Chances are your seedlings will be growing in individual, small pots. As their roots grow they will start to exit out the holes in the bottom of these pots. This shows that they need more room and are ready to be moved. Be very careful transplanting them though, roots are very fragile and any damage can have very serious implications into your cannabis plants’ ongoing health.

Light during the seedling stage

There are a lot of cultivators out there who put their seedlings under fluorescent tube lighting. Due to the weakness of florescent lighting they need to be placed quite close to your seedlings – about 5 cm above them, (don’t worry, they do not produce much heat, so this is fine). This causes your cannabis seedlings to grow broad – otherwise the plants need to “search” for light and you end up with long plants with thin, weak stems that will easily fall over. This is fine if you are willing to offer your plants support, but it is not a good foundation to lay if you want healthy, vibrant plants in the long run.

Some cannabis growers use HID lighting for their seedlings. HID lights produce a much better quality of light for growing cannabis, leading to stronger, healthier plants. The offset is that they produce a lot more heat – something your marijuana seedlings are very vulnerable too. For this reason it is important to make sure your lights are at the correct height above your plants. Start by having your HID lights 80cm above your plants, lowering them by 5cm each day until you are in the region of 40-60cm (depending on the wattage of your bulbs). Also, always perform the ‘hand test’ to see if things are getting a bit to hot.

In terms of color-band, it is best to go for a bulb within the blue spectrum. This will encourage strong and healthy stem and leaf growth.

During the seedling stage, most cultivators will use an 18/6 photoperiod. It is also possible to do a 20/4 period, with some cultivators going as far as using a 24/0 period to really boost growth.

Nutrition during the seedling stage

Generally speaking, seedlings are pretty self sufficient. However, as stated in our germination article, using a seedling/germination soil is recommended. This will have the finer, small amounts your cannabis seedlings can use. You should note, cannabis seedlings are extremely vulnerable to overfeeding, any excess will cause root burn, killing off your plants.

As a result, novice cultivators are strongly advised from adding anything to your soil other than clean, distilled water (pH of 6.5-7). Your seeds should have everything they need and will need minimal extra input from you. Just make sure they have the water and light they need and they will do fine. Once your seedlings have grown, they will enter the vegetative stage of their life cycle.