Cannabis Week By Week From Seed

This cannabis flowering stage guide will introduce the budding process of your cannabis step by step and will tell you what & how to ensure the best bud quality. Wanting to adventure with autoflowering strains? Here's all you need to know about the whole lifecycle of autoflowering strains and the most important stag

Cannabis Flowering Stage – Best Week By Week Guide

The cannabis flowering stage is critical to the whole life cycle. When the germination and nutrition stage of cannabis is complete, it will enter the flowering stage. Usually, the length of the flowering period is between 1 and 3 months.

This flowering stage guide will introduce the budding process of your plant step by step, and will tell you what & how to ensure the best bud quality and the highest yield harvest!

First Signs of Cannabis Flowering Stage

The flowering period is the last stage of the life cycle of indoor cannabis plants. Perhaps it’s the most significant stage.

But what are the signs of the cannabis flowering stage? The cannabis plant begins to flower when the first pistil comes out from the female pre-flowers. At the same time, the plant indicates that its nutrient requirements have changed, and from this point on, it will need more phosphorus and potassium than nitrogen.

The pre-flowers will begin to appear between each node, and after three to four days, they will become more and more obvious as the size of the first pistil increases.

Week 1-3: Transition to Flowering

In this flowering stage, cannabis rapid growth in size and height. This stage is also called the transition stage.

During the first three weeks of the stage, the first thing for growers is to reduce the photoperiod to 12 hours.

This stage includes plenty of vegetative growth, designed to give the plant enough size and strength to support bud development in next. This stretch is so dramatic that most cannabis plants double or even triple in height during this period!

Female cannabis plants begin blooming by growing pre-flowers. Cannabis pistils look like “white hairs.” During flowering, your cannabis begins to transfer energy from vegetative growth to bud production, forming its bud sites in the plant nodes.

Week 3-4: Bud Form

The mad stretching of your cannabis plant will begin to slow down in week 3-4. At this stage, you can see that the bud development begins to accelerate. The pistil is still white at this stage and protrudes straight from the bud.

Your cannabis will start to become sensitive to the environment and nutrients, so be sure to keep a close eye on your garden. Don’t worry if the leaves turn yellow. It’s a normal process at this stage. (Cannabis transfer energy to the top of the plant and buds.) You need to pay attention to the leaves’ condition and make sure they are not burned by the excess nutrients.

In general, the cannabis leaves should still be lush and green at week 3-4 flowering stage.

Week 4-6: Buds Start Fattening

At this flowering stage, the “stretching period” is over. Since your plant will not add many new leaves at this stage, you must be careful about the remaining leaves.

At this stage, appropriate strategic defoliation is available (for advanced growers) helps to expose the bud location. But it’s also important to ensure that your plant maintains enough foliage to absorb enough light to maximize yields.

Week 6-8: Pistils Darken & Buds Ripen

At this stage of flowering, your plant will not produce any new leaves or stems. Cannabis plant will concentrate all its energy on growing buds. If all goes well, your buds should be on track by now. In the next few weeks, their size will increase significantly!

At week 7 of the cannabis flowering stage, your cannabis plant should still be mostly green and healthy, and it’s normal for a few leaves at the bottom to start turning yellow.

Week 8+: End of Flowering, Final Flush

At the last flowering stage, you will find the trichome and pistil ripening, the pistil darkening, and the trichome turn from clear to milky as they increase in THC. (Then it turns to amber).

When it approach harvest, the y ellowing of the leaves is normal because cannabis is putting its last energy into bud growth. Just make sure your buds still look healthy.

Sometimes the trichome will become milky white, but the pistil will remain white. The pistil begins to curl(color turn to red or dark orange), but the trichome remains clear. Only when the pistil and trichome change together, it’s the best time to harvest.

Attention in Cannabis Flowering Stage

1. The flowering period of cannabis can follow a 1:1 ratio of darkness to light, that is, 12 hours of light and 12 hours of darkness.

2. Indoor cultivation of plant lights is necessary. In addition to controlling the light time, it can also control the degree of absorption of light colors by plants, generally with yellow or red ribbons.

3. For outdoor cultivation, hemp plants should be planted in areas with strong sunlight, so that the light is evenly distributed in all parts of the plant.

4. After hemp blooms, the application of nitrogen should be reduced. Correspondingly, phosphorus, and potassium can be appropriately increased to ensure the synthesis and operation of key substances during the flowering period.

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5. Too much nitrogen will reduce the plant’s stress resistance and cause pests and diseases.

6. Appropriate addition of calcium, magnesium, and other trace elements, and stop the application 2-3 weeks before harvest, can improve the quality of flower buds.

The Lifecycle of the Autoflowering Cannabis Plant

Growing cannabis isn’t child’s play. You’ll succeed only after mastering the basics, and it’s even more important to familiarize yourself with the lifecycle of the plant.

  • 1. Germination
  • 2. Seedling stage
  • 3. Week 1 to week 3
  • 4. Week 4 to week 6
  • 5. Week 7 to week 9
  • 6. Week 10 to week 11
  • 7. Harvest
  • 8. Drying, trimming, and curing
  • 9. In conclusion

Growing cannabis is an art that requires patience. Only growers that understand the science and lifecycle of the plant will succeed. The rest either fail miserably or simply give up. It’s not uncommon for beginners to fail. And since practice makes a man perfect, keep at it until you finally harvest a big bunch of nugs that remind you of all the hard work.

I promise that it’s all worth it in the end. But first, you must understand how the plant grows. Not only will this help you save time, but you’ll also be able to bounce back even if you face setbacks. So, let’s take a look at the lifecycle of the autoflowering cannabis plant to make it a little easier for you.

Germination

The first step of the plant’s cycle starts with germination. Now that you’ve grabbed your favorite seeds, it’s time to plant them. People use different ways to germinate the seeds, but it’s important to stick to a method that works for you. Ideally, the seeds should be soaked in a glass of water for at least 24 hours. Some growers use a nail file to scratch the seeds gently before soaking them.

This ensures that the seeds soak in more water, but you shouldn’t attempt this if you’re a beginner. The seeds can then be transferred to a wet paper towel and stored in a zip-lock plastic bag. Within 1-2 days, the taproot emerges and the seeds are ready to be planted. Note that many growers simply stick their seeds in the soil, and you can follow the same route if you prefer.

For the most part though, we do recommend sticking with the paper towel method. This method allows for more control, which is what we are always looking for as cultivators. Be sure that the paper towel you use is totally unscented, unbleached, and without any sort of dye – all three of these can cause issues with germination and can even kill the seed.

When using the wet paper towel method, be sure to check the seeds daily to see if there has been any progress. The last thing you want is to leave germinated seeds for multiple days without planting, as this is a true recipe for disaster. Depending on the state of the seed, and the strain, it can take anywhere from 2 to 10 days for the tap root to emerge, but for most seeds, it should take no more than 3 or 4 days especially if you have soaked them to begin with. Remember to always check the pH of the water, and amend it to between 5.5 and 6.5 for the best chance of germination success. The EC or TDS should be low. For germination, the perfect temperature is around 80°F but anywhere within the 70°F – 90°F (21°C – 32°C) range will work just fine.

Seedling Stage

The seeds can be transferred to the soil at this point. It may take another day or two for the seeds to emerge from the soil and break their hull. Be patient and stop messing with the plants. You might be tempted to assist the seedling since it looks so fragile, but it will do fine without you. Also, remember to regulate the pH as it’s very important.

The seedling stage is the most important stage. The plant will take a long time to recover if there’s a mishap at this stage, so be very careful. If growing indoors, hang the lights at least 17-20 inches above the seedling (if using HID lighting, this is less important with LED and CFL panels as they produce much less heat). Reduce the distance as the plant grows bigger. CFLs, LEDs, MH, and HIDs will do as long as the seedlings are comfortable.

Week 1 to Week 3

The seedlings begin with only two true leaves. After a couple of days, a third leaf will appear. The plants don’t need any nutrients on the very first week if you’re growing in soil. For those growing in hydroponic setups, reduce the strength of the nutrients by half to allow the seedlings to adjust to them. You can kill the plants faster by overwatering them. Not a myth; it’s a fact. So, go easy on watering. And, make sure that you supply enough water to keep the soil moist. Moist, not dripping wet or dry. As the process of photosynthesis goes on, new sets of leaves will appear.

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The seedlings become a little stronger during week 2. You can now introduce nutrients unless you’re using premade organic potting soil. Again, the nutes should be mild as the plants are still fragile. The distance between the lights and the seedlings should be reduced if the seedlings grow lanky.

By week 3, the seedlings show more leaves popping up. Some autoflowers may display their sex at this stage, but if you’ve planted only feminized seeds, you don’t need to worry at all. If using regular seeds, however, it’s important to distinguish between male and female plants. While female plants show their pistils, the males will produce little pollen sacs. It’s a good idea to remove the males since sensimilla buds are preferred. Nutrients can be used at regular strength now, but be cautious to check the plants for any nutrient burn. The seedlings will suffer a bit with low doses of fertilizer or nutrients, but they don’t recover quickly from an overdose or nutrient burn.

Week 4 to Week 6

This is the phase that determines how big the plants grow. You can use several training techniques including LST, Topping and FIMing to increase yields. Many growers make the mistake of introducing bloom nutrients as soon as the plant produces a few pistils, but that’s not how you do it.

Note that some plants may still be in the vegetative stage and nutrients must be provided at full strength based on autoflower feeding schedule recommendations. Also, this depends on the type of fertilizer you’re using. For instance, if you’re growing organically, use organic nutrients according to the manufacturer’s instructions, but make sure that it contains more nitrogen. If you’re using a brand that has two parts of Growth and Bloom fertilizers, use only the “Grow” part during week 4. Most brands of fertilizers provide the numbering of N-P-K to make it easy for you.

For example, if you’re using General Hydroponics, only FloraGro and FloraMicro (micronutrients) should be used during this stage. Remember to regulate the pH constantly when using nutrients, but if you’re using something like the pH Perfect from Advanced nutrients, for instance, pH can take a back seat.

All cannabis plants can have different sizes even if they’re the same age. Gorilla Cookies by Grey_Wolf.

Week 5 begins with the plants producing lush leaves with a few buds appearing slowly. Continue with the “Grow” nutrients even at this stage lest you want the plants to stop growing vertically. This is the stage where an explosion of growth occurs and you need to support it with nitrogen. Using more phosphorous or potassium at this point will force the plant to focus more on the buds rather than growing.

Many growers use bloom nutrients as soon as they enter the 5th week because they are satisfied with the growth of the plants. Some plants like Green Crack and Gorilla Glue have the tendency to grow very large, so you might be tempted to use flowering or bloom nutes. However, the yields can reduce significantly if the plant isn’t allowed to grow to its full potential.

As you enter week 6, the appearance of buds is even more apparent. A little defoliation doesn’t hurt now. Defoliation is the process of removing extra leaves to provide more light to the lower parts of the plant. Don’t overdo it, though, because the plant relies on the leaves to receive nutrients. Continue with nutrients meant for the vegetative stage as the plant will shoot up vertically.

Week 7 to Week 9

The plant is all geared up for its flowering stage and bloom nutrients can be used at full strength. The buds will begin to swell and the unmistakable aroma of sweet cannabis will fill up your tent. The pistils will slowly change colors from white to a light brown or red, depending on the strain.

It’s also a good idea to use nutrients to boost buds to improve the quality. Organic soil growers can use dried and powdered banana peels to introduce more potassium to the soil. The vertical growth stops sometime during week 7 but the plant does everything in its power to increase the size of the buds.

As you enter week 8, the leaves start yellowing a bit, but there’s nothing to be alarmed. This is just a natural way of the plant indicating that it’s nearing the end of its cycle. Continue to use flowering nutrients even as you step into week 9. Don’t forget micronutrients that are added right from week 2. Defoliate the plants again if the bottom parts of the plants display small buds.

Week 10 to Week 11

The plant is almost at the end of its lifecycle. Stop using nutrients and use plain water to remove any chemical buildup. This practice is known as flushing, and it’s very important if inorganic nutrients are used. Flushing also ensures that your buds don’t taste or smell like chemicals and improves the quality of smoke dramatically.

By week 11, all the leaves start turning yellow. Most of the pistils turn amber, indicating that it’s almost time to harvest. Admittedly, many seed companies including Fast Buds tell you that the plant will finish its cycle in 8-9 weeks. And yes, they do finish in 9 weeks if you grow in a good growing environment. However, your plants may take a little bit longer depending on the growing conditions you provide.

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I received one seed of this variety as a gift and I can say that this is an excellent quality as always. I think it will be a great product)

Harvest

You can harvest the plants now by chopping them all one by one. Use sharp sterilized scissors to prevent infecting the buds. Don’t forget to use gloves, especially if you’re harvesting buds of the Gorilla Glue as they are notorious for oozing resin all over.

You have a couple of options when it comes to harvesting, and it all really depends on the size of your plants and the environmental conditions at play. If you have grown plants that are smaller than about 1 meter tall and live in temperate conditions then you can probably get away with cutting the plant at the base of the main stem and just hanging the entire thing. On the other hand, if you have grown massive beasts and live in hot, humid conditions then you probably want to break the plant down branch by branch and hang them all separately to dry.

DRYING, TRIMMING, AND CURING

This is the last stage where the buds are dried, trimmed, and then stored in mason jars. The first decision you have to make is whether you want to wet or dry trim the weed. In almost all circumstances we suggest dry trimming, with wet trimming only being suggested when the ambient temps and humidity is high and you are unable to control the drying environment. There’s a bunch of ways to control the temps and humidity, from AC units and dehumidifiers (or humidifiers depending on the conditions) to heaters, and even your regular oscillating fans.

You want the drying period to be in the goldilocks zone – not too fast and not too slow. The ideal timing is strain-specific to a certain extent and is also dependent on the denseness of the bud, but anywhere between 7 to 14 days is great. To achieve this you want the temps to be anywhere in the range of 60-70°F (that’s 15-22°C) with a relative humidity of 55-65%. If after 2 to 3 days of drying you are not seeing much of a change in the moisture levels in the buds then you need to reassess your setup, as the buds are going to be in dire risk of developing mold issues.

Once they are all nice and dry it’s time to trim. But hold up there cowboy, the last thing you want to do is dive in headfirst with that old sh**ty pair of scissors that have been hanging around your kitchen drawers for the last decade. Trimming is a tedious and annoying job, so do yourself a favor and grab a pair of dedicated trimming scissors to catch all the falling keif. The first time we used a proper trim tray we almost fell off our trimming seat when we realized just how much keif we had been wasting trimming without one.

Curing comes at the last stage, but it’s the most important one if you want top-quality buds. Do not skip this process because all your hard work will be for naught if you skip this one. Again, environmental control is paramount to the success of the curing period. We cure weed to allow the terpene profile to fully maturate and for the capture chlorophyll to dissipate.

For this process to properly take place we need to keep temps around 70°F (22°C) with a humidity level of 60-65%. Place the weed into your resealable glass mason jars, and remember to not overfill them. You want the jars to be no more than around ¾ full so the buds have space and air to breathe. Last but not least, wait for at least 2 weeks to cure the buds even if you’re tempted to smoke them immediately. Doing so will reduce the harshness of the flower and your lungs will certainly thank you for it!

Not all strains will have fully cured in two weeks though, with some flowers taking up to 6 months to finish the maturation period. For the first 10 to 14 days you want to burp each jar once or twice a day to allow the remaining moisture to escape, and then twice a week for the rest of the cure. Can you smoke those buds as soon as they have dried? Of course, you can, but if you really want to get the best out of all of your hard work then be as patient as possible and let the curing process work its magic. It’s quite surprising how much difference just leaving the buds to cure can make to the end of smoke.

In Conclusion

The lifecycle of autoflowering cannabis plants is basically the same as photoperiods. There are a couple of differences in how fast they develop and how they grow but most cannabis growers with a couple of grow cycles under the belt can definitely grow autos without any problem at all.

If you’ve grown autoflowers before feel free to share your experience with fellow growers by leaving a comment in the comment section below!