10 Things to Consider that Your Autoflower Start Flowering

autoflower start flowering

From planting autoflower start flowering to harvesting, there are important things to consider including transitions on each stage. The flowering phase is quite sensitive. It requires careful effort, maintenance, and study! Here are 10 best criteria to know if the autoflower will bud out. 

Auto-flowering cannabis plants often are bought by growers. It’s easy to cultivate, grown rapidly with a short span of flowering and harvesting. Aside from that, this type of buds requires less maintenance and effort on cultivation. That is why these varieties are the top choice of indoor growers during cannabis cultivation

However, even if it’s an autoflowering variety, it doesn’t mean that you just have to let it grow conveniently. Whatever it is, you have at least take an effort on learning things about cannabis cultivation. Similar to any plant, you’d consider a lot of factors to ensure that it will grow healthily. Forsaking or even just forgetting a single detail could ruin or destroy the process of cannabis cultivation. Thus, careful monitoring, planning, and research are vital for it to be successful. 

In this article, we’ll assess on and take note of the basic information and likewise, indications that signify the shifting of vegetative to the flowering phase of an auto-flowering cannabis plant. 

The Life Cycle of the Auto-flowering Plants

There are three major stages that every cannabis plant would undergo. Respectively, the germination stage, the vegetative stage, and the flowering stage. Each phase of its growth marks another milestone in its life. Likewise, each phase is divided according to its physical characteristics, nutrient, and light demand. For a detailed summary, here is an approximate timeline (varies on every strain) of the growth of autoflower start flowering from day one to its harvest.

Week One -The Seedling and Germination Phase 

Upon planting the seed, you’ll be able to see changes during this phase. Leaves start to appear and stem thoroughly develops. By the end of week one, you’ll be able to observe the plant to grow more with leaves sprouting from different parts of the plant. 

Nutrient Demand: Low to Moderate

Light Cycle (Light/Dark): 16/8

Week Two to Three- Vegetative Phase

Autoflowering plants have a short vegetative phase. In just a span a week or two, you’ll be able to see buds starting to bloom on few parts of it. It’s expected that during its third week, signs of its gender will appear as indicated to its flowers.

Nutrient Demand: Moderate

Light Cycle (Light/Dark): 16/8

Week Four to Six- The Pre-Flowering Stage

At this stage, the plant will suddenly grow vertically faster. Also, buds will continue sprouting at several locations in the plant. Moreover, if you want to keep your plant small at limited vertical height, its best at this phase to do flushing or do training techniques.

Nutrient Demand: Moderate to High

Light Cycle (Light/Dark): 16/8

Week Seven to Nine- Flowering Stage

The vertical growth will stop during this phase and the flowers will slowly mature. Nonetheless, in this phase, the plant will develop a strong smell. On its last week, the leaves will turn yellow. This marks the near end to the plant’s life.

Nutrient Demand: Low to Moderate

Light Cycle (Light/Dark): 12/12 

Week 10 to 11- Harvesting Period

The yellowing of leaves will continue. The plant will continue to transfer its nutrients and energy to ensure a concrete development on its buds. Nonetheless, a time comes (looking its trichomes, pistil) that the flower will mature and be ready for harvesting. 

Nutrient Demand: Low

Light Cycle (Light/Dark): 12/12

Indications that an Autoflowering Plant Start Flowering

As discussed above, an auto-flowering plant undergoes a major transition from vegetative to flowering stage. Though the vegetative phase is short-lived, it’s essential that you’ll be able to monitor over its transition to be able to prepare a major shift also on nutrient and light cycle. Also, this will give you a careful examination regarding its gender, whether its female or male as well.  

#1. Presence of Calyxes and Pistils

The most evident and clear indication that your plants will bud is by examining the existence of the calyxes and pistils. Nonetheless, pistils are a plant’s female reproductive organ often responsible to catch out pollen during seed reproduction. To easily identify it, pistils appear through the calyxes of the plant. The calyx refers to the base of the flower, often protruding at leaf nodes during the early phase of flowering. They are often small and green in color. This encloses all the resinous materials including the stigma and pistil. After a few days, an appearance of pistil often white tiny hairs signifies that the plant is female and thus, cultivation should be continued. 

#2. Plant Height

Also, its height could be a good approximation on its shift towards the flowering stage. Depending on the type of strain you have, usually, autoflower start flowering grows at least 50% to 75%  from their perspective height. Thus, if your autoflowering cannabis plant is said to grow up to 90 cm, then by this time it should be about 45 cm to 67 cm respectively.

#3. Appearance of Trichomes

If you still aren’t sure with the pistils, then you could re-clarify it by looking at the trichomes After few days upon the appearance of pistils, an indication of trichomes on the bud will be clearly identified. Though you’ll have to use a magnifying glass, these are often tiny packets or crystals often clear translucent white in appearance. These trichomes hold the cannabinoid content (THC, CBD, CBN) of the cannabis buds.

#4. The Light Cycle

For autoflower start flowering plants, there are times that you could force it to flower or bud. Thus, if you want your auto-flower cannabis to bud out early, then you’ll have to cover or maximize its dark hours. Thus, you’ll have to minimize the lighting hours. It’s recommended doing the 12/12 ratio to compel the plant to do flowering. However, it’s essential to remember that doing it may cause consequences. Most likely, it will cause disruption and could lessen the bud growth as it supposed to be. That is why this method should not be recommended for doing.

#5. Check on the Cannabis Timeline

This could not base on physical appearance, however, this is a good guide to take note of the plant’s growth. Each strain has a different autoflower start flowering period duration. That is why its best to ask your seller or do some research as to when your plants will start to bud out.

#6. Climatic Conditions

Cannabis plants crave for heat and light. Thus, it’s essential to start cultivation during the summer. However, if you want it to easily bud out, then make sure that it will be less exposed to sunlight. Thus, it’s best to cover the plants well to induce budding at the early stage.

#7. Genetic Variety

There are three types of cannabis strains. Respectively, the Sativa, Indica, and Ruderalis. Through examining their variety, you’ll be able to approximately predict autoflower start flowering and height as well. Also, its recommended to examine its strain type. The seller or the breeder will definitely have a description of the strain as to its flavor, effects, and flowering time.

#8. The Color of Leaves

Though this won’t be readily observed, you’ll be able to notice a slow change in color from its dark green appearance turning a bit lighter than it was. However, this could be difficult to notice. It’s best to use this indication as support only on your basis.

#9. Crave for Nutrient Load

As you’ve noticed the change in the color of the leaves, then this means that you’ll have to increase the number of nutrients that you’ll be putting in. In order to continue the bud’s development, it’s essential that you’ll be able to increase the number of nutrients poured into the plants.

#10. Vulnerability to Animals, Pests, and Insects

There are creatures who readily sense the start of cannabis’ budding. Likewise, some have endocannabinoid receptors that could be activated upon grasping a strong presence of cannabinoids in the environment. That is why, if you inspect that there are insects surrounding the cannabis plants, then there’s a good possibility that the plants will get bud around.


Cultivation of automatic flowering cannabis seeds may have a lot of things to remember. From germination, vegetative, flowering, proper lighting, and nutrient makeup. These are just a few things you have to consider. However, there’s no such thing as impossible as long as you’ve put hard work and perseverance. Just take your time and put a lot of effort. It would someday be a success. Happy cannabis planting stoners! 

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See also  How to Create Feminized Marijuana Seeds


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