How to Tell and Fix Stunted Autoflowers Growth

Hey there, fellow green thumbs! Are your autoflowering plants looking a bit micro and small rather than tall and proud? Don’t fret! Today, we’re diving into the world of cannabis plants and uncovering the secrets to telling if they’re underdeveloped and, more importantly, how to fix them. So put on your gardening gloves, and let’s get…

How to Tell and Fix Stunted Autoflowers Growth

How to Tell if Your Autoflower Plants are Stunted

How to Tell if Your Autoflower Plants are Stunted

Before we can work our magic and revive those tiny powerhouses, we must identify the signs of stagnant growth.

Keep your magnifying glass handy because we’re about to go on a detective mission.

Have you noticed that your once bonsai like beauties are not reaching for the stars as they should? 

Perhaps they’re struggling to enter the flowering stage or displaying a preflower tease but never fully blooming.

These are just a few indicators that your plants might be experiencing stagnant growth blues.

Now, let’s get to the root of the issue. Stagnant growth in auto flowers plants can be caused by a variety of factors.

It could be an environmental mishap, such as improper lighting or temperature fluctuations.

Nutritional deficiencies, genetic quirks, or even the wrong pot size can also throw a wrench into their growth spurt.

It’s essential to play plant detective and identify the specific cause of the stagnant growth to implement the right solution.

And why is it so important to address this issue, you may wonder?

Apart from wanting your beloved plants to reach their full potential, stagnant growth can significantly impact their yield.

We all want those bountiful harvests, don’t we?

How to Fix Stunted Growth in Autoflowers

How to Fix Stunted Growth in Autoflowers

Stagnant growth can be frustrating for any grower.

Fortunately, there are several steps you can take to address this issue and get your plants still growing.

First, carefully assess your plants for signs of stagnant growth, such as a lack of height or delayed blooming.

Once you’ve identified the issue, it’s time to investigate potential causes.

Common culprits include environmental factors like insufficient light, incorrect temperatures, or poor airflow.

Adjusting these factors to create a more favorable environment can help your plants resume healthy growth.

Nutrient deficiencies or imbalances can also cause stagnant growth.

Make sure your plants are receiving the right supplements in the right amounts for their growth stage.

Consider using a quality fertilizer designed specifically for cannabis to ensure your plants are getting the supplements they need.

Finally, genetics can also play a role in stagnant growth.

Some plants are just naturally predisposed to grow at a slower pace.

If you suspect this is the case, consider selecting weed variety with better growth potential.



The germinating stage is a crucial step in the lifecycle of your plants, laying the foundation for their healthy growth.

By providing the right conditions and care, you can ensure the development of a robust root system and set them on the path to success. 

Select a suitable medium such as a jiffy pellet, solo cup, or a small starter pot filled with a well-draining mixture of coco coir and perlite.

Ensure the container has drainage holes to prevent waterlogging. 

Begin by soaking your autoflower seeds in water for 12 hours to 4 days, allowing them to hydrate and activate.

Make sure you’re placing them in a warm and dark area, but avoid direct exposure to intense light at this stage. 

Once they sprout, provide them with gentle and indirect light to prevent stretching.

Seedling Stage

Seedling Stage

After the seedlings have developed a few sets of true leaves and are around 3 to 5 inches tall (usually around week or two after germinating), carefully transplant them into big pot, such as a 3 gallon sized container, ensuring the root system is intact and undamaged.

You can put them them in Ocean Forest or Fox Farm growing medium.

Transplanting seedlings is delicate process and needs a little extra TLC to flourish.

If you spot stagnant growth at this stage, it’s crucial to assess the environmental factors that might be impeding their progress.

Is the temp too chilly or scorching hot? Adjust it accordingly to create a comfortable climate for your little ones.

Don’t forget to provide them with ample moisture content, but avoid drowning them in water—it’s a fine balance, my friends.

Some seedlings are simply born with unique characteristics that can cause stagnant growth.

If you suspect a genetic issue, it’s best to consult with experienced growers or breeders who can guide you in selecting the right seeds for optimal growth.

3 Week Old Autoflowers

3 Week Old Autoflowers

Ah, the magical auto 3 week mark is when our plants start showing their nodes and true colors. 

But what happens if they’re not growing as quickly as expected?

Fear not, my gardening gurus, for we shall unravel the secrets to reviving these slow-growing wonders.

First things first, let’s assess the environment for week of veg growth.

Are your 21 days old plants getting enough light? Remember, they’re like sun-seeking divas who crave those lumens.

Adjust your lighting setup if necessary, ensuring they receive the right amount of brightness to fuel their growth spurt.

If you find that the growth is still lagging despite your best efforts, it might be time to consider breeding or selecting different weed species.

Some strains are just naturally more predisposed to vigorous growth than others.

It’s like choosing the MVPs for your garden squad!

4 Week Old Autoflowers

4 Week Old Autoflowers

At the 4-week mark, autoflower plants should flourish with lush green leaves.

If they’re not, let’s troubleshoot. First and foremost, let’s reevaluate the environment in which your 1 month old plants reside. 

Are they receiving an adequate amount of light and airflow?

Remember, these plants yearn for fresh air and abundant lumens to orchestrate their growth symphony.

Adjust their lighting setup as needed and ensure they have ample space to unfurl their leafy wings.

Now, let’s delve into the realm of supplements —those magical elixirs that fuel their growth.

Sluggish growth at this stage may signify a nutrient deficiency or excess.

Double-check their supplements levels and make the necessary adjustments.

The key lies in striking that delicate equilibrium where they receive just the right balance of macronutrients and micronutrients to flourish.

6 Week Old Auto

6 Week Old Auto

At 6 week old, auto plants should be displaying their blossoming beauty.

If they’re still not reaching their full potential, fear not!

Let’s investigate the causes of stagnant growth. 

Look for signs like dwarfed height, pale leaves, or delayed blooming. 

Check their lighting – ensure they receive ample light for photosynthesis.

Adjust the light cycle and intensity if necessary.

Maintain optimal temperature and humidity levels for their growth.

Address supplements imbalances by adjusting their feeding regimen carefully.

2 Month Old

2 Month Old

At the grand 2-month old mark, plants should be flourishing with vibrant leaves, pistils and impressive stature.

If they’re not, let’s uncover the secrets to rejuvenating their growth.

Look for signs like short stature, weak stems, or low nug production.

Evaluate their environment—is light, temperature, and humidity optimal?

Adjust these factors to create an ideal growing condition.

Next, address their nutrition. Are there deficiencies or imbalances?

Fine-tune their watering and feeding regimen with the right supplements for their growth stage. 

By optimizing their environment and nutrition, we can unlock their hidden growth potential.

How Tall Should Autos Grow?

How Tall Should Autos Grow

These plants with their unique life cycle, have a reputation for being more compact in stature vs photoperiod plants.

They are modest and faster in growth compared to photoperiod seeds that can reach towering heights and take few weeks longer to bloom.

These plants are known for their versatility, can thrive both outdoors and indoors.

On average, they typically range from a petite 12 to 36 inches tall, depending on the strain and environmental conditions.

It’s essential to remember that several factors can influence the final height of plants.

Genetics play a significant role, as weed varieties have different growth characteristics.

Additionally, environmental factors such as light intensity, temperature, humidity, and even the size of the growing container or pot can impact their final stature.

If your plants are getting too tall for your setup or reaching heights beyond your expectations, fret not!

There are techniques to manage their height.

You can employ low-stress training (LST) methods, such as gently bending and securing branches to encourage horizontal growth.

That helps maintain a more manageable and even canopy.

What to Do When Your Autos are Not Growing Fast Enough

What to Do When Your Autos are Not Growing Fast Enough

First, let’s identify the causes of slow growth in your beauties.

Environmental factors often play a significant role.

Check the temperature, humidity, and airflow in their growing space.

Ensure they have optimal conditions to thrive and put their growth into high gear.

Now, let’s talk about supplements. Just like us, plants need proper nourishment to grow big and strong.

Ensure your plants are receiving a balanced diet of supplements.

Sometimes, a slight adjustment or boost can do wonders for their growth speed.

However, remember not to go overboard with fertilizers, which can lead to nutrient burn. Moderation is key!

If you’re looking for an extra growth kick, consider applying growth hormones or supplements designed to promote faster growth.

These can give your plants a little push and help them reach their full potential sooner.

Lastly, choosing suitable cannabis variety can make a world of difference.

Some seeds naturally have faster growth rates, so do your research and select seeds known for their speedy development

Will Stunted Autoflower Still Flower?

Despite their dwarfed stature, plants like GG#4, auto Pineapple Express and auto Northern Lights have a remarkable ability to adapt and bloom even under less-than-ideal conditions.

So, the short answer is yes – stagnant plants can still bloom and reward you with their precious buds.

These plants have an internal clock that triggers the blooming stage based on age rather than changes in light cycles.

This unique characteristic allows them to initiate blooming even when their growth has been hindered.

Of course, it’s important to note that stagnant plants may produce fewer nugs and potentially smaller yield per plant compared to their robust counterparts. 

So, don’t let the stagnant growth discourage you; these resilient plants will still reward you with the delightful characteristics that make GG 4, Pineapple Express and Northern Lights so beloved.

General Tips for Promoting Healthy Growth

To promote healthy growth, follow these key tips:

General Tips for Promoting Healthy Growth
  • Assess Environmental Factors: Ensure proper lighting, temperature, and humidity levels for optimal growth.
  • Adjust Supplements Levels: Balance macronutrients and micronutrients, consider organic fertilizers or supplements.
  • Check pH and Watering Practices: Maintain appropriate pH levels and a balanced watering routine.
  • Pruning, Topping and Training: Remove dead leaves, and consider low-stress training (LST) techniques, including topping, to shape and enhance growth.
  • Monitor for Pests and Diseases: Regularly inspect for pests and diseases, and take immediate action if detected.

By following these general tips and showering your plants with love and care, you’ll be well on your way to growing healthy, robust plants that will dazzle you with their growth and reward you with better experience and an abundant harvest.


Will a week of stunted group harm auto?

A week of stagnant growth shouldn’t harm plants, but it may affect overall yield, development and lifespan.

Reasons for stunted auto growth?

Stagnant growth can be caused by environmental factors (light, temperature), poor seeds quality, genetic predisposition, or improper care.

How to know if auto is stunted?

You can tell if plant is stagnant by its slow growth rate, small size compared to others, pale or discolored leaves, and takes longer to bloom.

Will stunted plants recover?

Stagnant plants have the potential to recover if the underlying issues are addressed promptly.

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