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Cannabis plant growing

How Long Does It Take To Grow Cannabis?

May 20, 2022 by Eva

Those who are patient can produce a good cannabis plant. But how long does it take to grow cannabis?

The typical duration for the majority of indoor cannabis plants would be four months, however, this might vary based on a variety of reasons.

Although it’s difficult to predict when cannabis plants may grow, you may obtain a rough estimate by looking at the various marijuana’s key phases of growth.

New cultivators should become familiar with any of these stages in order to track their plants’ growth and arrange their schedules.

  • Life Cycle of the Marijuana Plant
    • 1. Seedling Germination Stage
      • How to Take Care of Marijuana Seedlings
    • 2. Growing Tiny Buds at the Seedling Stage
    • 3. Blooming at the Vegetative Stage
      • Take Your Time
    • 4. Flowering Period
      • Don’t Be Confused by the Blossoming Period
  • When is the Best Season to Harvest Marijuana?
    • Growing High-Quality Marijuana Takes Patience

Life Cycle of the Marijuana Plant

Before the harvest, producers traditionally distinguish four different periods in the entire lifecycle of a marijuana plant:

1 to 14 days for the germination stage, 2 to 3 weeks for the seedling stage, 2 to 8 weeks for the vegetation stage, 8 to 10 weeks for the flowering stage.

When you begin with clones instead of seeds, you can avoid the germination plus the seedling stages.

Within this outline, we’ll consider that you’re starting out with a fresh batch of fertilized seeds.

This also considers that the seeds you’ve picked are photoperiod sensitive, which means that your plant’s blooming cycle gets determined according to the amount of light it receives.

Hemp Cannabis seeds on wooden background

1. Seedling Germination Stage

Cannabis seeds may be planted directly into the soil, although most producers prefer to bring forth taproots prior to placing seeds within their growth media.

Developing these early roots provides added power to cannabis seed throughout its sensitive seedling stage.

This also enables growers to filter out any weaker seeds ahead of time, rather than worrying about whether they will take root in the soil.

Wrapping seeds in something like a lightly wet paper napkin and covering them with either a plate or opaque pot lid is the easiest technique to kickstart the sprouting.

You may also put seeds inside a cup of clean water. The key is to shield these young seeds away from the light.

How to Take Care of Marijuana Seedlings

You must also exercise extreme caution to prevent contamination with your seeds when you handle them in your hands without gloves.

Tweezers are used by some cannabis plant producers to minimize unintended cross-contamination.

After about a week passes, you should observe white roots growing from your marijuana seeds.

There are also some unusual instances when it may take upwards of two weeks, however, you would generally not wait more than two weeks.

Day after day, check your marijuana seeds for evidence of improvement and insert them into starter capsules after they display symptoms of growth.

Cannabis seedlings grown in pots

2. Growing Tiny Buds at the Seedling Stage

Marijuana seedlings are quite vulnerable when they initially spring to fruition.

Throughout this initial stage, you should utilize soft illumination for approximately 16 hours each day, such as a muted LED or perhaps a CFL lamp.

In addition, always use water that is pH-corrected to spritz your marijuana seedlings.

Seedlings may have little round leaves known as cotyledons at first.

But, when your plant matures, the actual fan leaves that many would recognize should appear. 

The quantity of leaves you find on the plant usually indicates when it has converted from the seedling phase into the vegetative stage.

Once you observe four or five pairs of fanned leaves, the plant ought to be robust enough for a move to a bigger container.

Within two or three weeks, the seedlings should then be suitable for transplantation into the main soil container.

hemp weed farming

3. Blooming at the Vegetative Stage

The vegetative stage has always been about expansion.

Throughout this period, the plants shall swiftly develop vertically, with many stems with fan leaves.

Vegetation stage plants require more nitrogen throughout their nutrition to assist in fueling this development.

Light is undoubtedly the most significant factor during the vegetation phase.

Because cannabis plants have always been photoperiod species, they will blossom when the daily quantity of light gets reduced.

Surprisingly, you may switch from the vegetative stage to the blooming one at just about any moment.

Take Your Time

The disadvantage of leaving vegetation earlier is that you will have fewer blooms.

You’ll get more bud centers and consequently a larger yield if you give the marijuana plant more than enough chances to mature.

You may improve your total production even more by learning training methods like bending and topping.

To preserve your strains and keep them in the vegetation phase, you must keep the lights running for a minimum of 18 hours every day.

You may do this for however much time that you would like, although most marijuana strains are able to make the transition after 4 to 8 weeks.

Everything relies on how big your blossoms are, which strain you’re cultivating, and how much output you desire.

Cannabis in bloom

4. Flowering Period

To go to the flowering stage from the vegetation one, change the light cycle to 12/12 from 18/6.

The reduction in light hours parallels the naturally occurring season transition from summer into fall and causes significant adjustments in the plant hormones.

This leads the plants to change their concentration from shoots and roots growing towards pistil creation while the female plants await pollination, which then in nature should culminate in seed production before a particular plant withers away over the harsh winter.

Tracking flowering plants works in a similar fashion to observing vegetation, except you’ll have to switch to flowering fertilizers and drop the ambient temperature to around 75 degrees Fahrenheit.

During blossoming, you should also be on the lookout for indications of mold and even hermaphroditism.

Don’t Be Confused by the Blossoming Period

The nodes of cannabis plants may be used to discern their sex during blooming.

Male plants contain pollen sacs that are ball-shaped, whereas females have slender pistil-like threads.

Because a hermaphrodite has both, pollen might interfere with bud formation.

The duration of the said flowering phase is mostly determined by the usual growth period of the strain.

Monitoring the growth and coloration of the plant’s trichomes seems to be the only method to determine when you can harvest the buds.

The flowering stage for many strains seems to be eight weeks, however, Sativa plants may easily extend that time by 2 to 3 weeks.

Also, it’s crucial to remember that just because this part of the plant’s life cycle is named the flowering stage, it does not really imply the plants would only focus on generating buds.

Flowering occurs naturally in cannabis plants.

Plants could double in size throughout the early flowering stage as they prepare to start producing blooms, so organize your growing area appropriately.

When is the Best Season to Harvest Marijuana?

There is no specific timing for harvesting buds off a blooming plant.

However, you must depend on your sensory perceptions to determine when it is appropriate to harvest your marijuana.

Examine the trichomes of every one of the plant’s buds with a good-quality magnifying lens or even a jeweler’s magnifier.

The majority of these trichomes should be milky-white and impermeable, according to growers.

Translucent trichomes are much too immature and also have a low THC content.

But at the other end of the spectrum, trichomes with orange hairs possess an oxidized version of THC called CBN.

Although there are individuals that appreciate CBN’s allegedly relaxant effects, the majority of people try to harvest their marijuana plants when the majority of trichomes appear milk-white.

Growing High-Quality Marijuana Takes Patience

Growers can utilize a few ways to accelerate the growth process, although most of the feminized cannabis seeds available require around 4 months before they mature.

When you’re a quick grower, you might try feminized automatically flowering seeds, although keep in mind that these kids have a smaller total output and frequently produce fewer cannabinoids.

If you’re not interested in the sacrifices involved with automatically flowering plants, try starting from clones or going with indica plants so you save time.

Indica strains typically attain full blooming weeks earlier than Sativa plants.

Additionally, cultivators should conduct research on the internet on their favorite marijuana strains.

Any hybrid offers its own growth pattern, as well as a plethora of strain-specific data, which has been available on the internet.

Understanding the expected time for any particular variety is the most accurate approach to determining the amount of time required to grow and cultivate cannabis plants.

Category: Cannabis Guides, Resources

About Eva

Digital nomad who graduated in Marketing. With a passion for creativity, she enjoys exploring the worlds of graphic design and social media. In her free time, you can find her gliding around on a skateboard, soaking up inspiration from surroundings.

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