How Long Do Weed Clones Take to Grow?

Indica Hybrid Strains
Indica Hybrid Strains
June 26, 2021
How Many Hours Of Light Do Weed Clones Need
How Many Hours Of Light Do Weed Clones Need?
June 28, 2021

How Long Do Weed Clones Take to Grow?

How Long Do Weed Clones Take To Grow

How Long Do Weed Clones Take To Grow

Growth Timeline and Optimizing Conditions for Faster Clone Development

When trying to aim for a finished flowering and a bountiful harvest, you want your plants to be ready when you need them, not before or after. As you get deeper into the growing process and refine your variables, you will begin to create a symbiotic rotation with your plants in which you can have a bit of control over the growing timeline.

The weed clone growth time differs across different strains and cultivars, like Sativa and Indica. At Big Daddy Clones, we strictly adhere to the timeline of a given cultivar or strain to get healthy plants.

Genetic Variability and its Impact on Weed Clone Growth Time

When you grow from a seed, a cannabis growth cycle has 5 distinct stages: germination, seedling, vegetative, flowering, and harvest. When you grow your weed plant from a cutting and exclude harvest as a stage, it will have just 3 stages: clone, vegetative, flowering. Depending on its specific strain or cultivar, marijuana plants may finish flowering in 6 to 8 weeks or 8 to 16-plus weeks. For example, Green Poison – one of the fastest growing strains – takes 6 to 7 weeks  to harvest. On the other hand, cannabis sativa may take more than 16 weeks to finish flowering and get ready for harvest.

Cannabis Growth Cycle Timeline

This cannabis growth cycle timeline is for the fastest growing strains of marijuana, like Green Poison.

Day 1: Take some plants of your favorite cannabis strain/cultivar that are about 12 inches tall. Take vegetative cuttings/clones from these plants. Grow these clones in soil or use hydroponics with balanced nutrients, and low them 14 days to root.

Day 14: On the 14th day, the weed clones would have rooted thoroughly. Now you can shift them to a vegetative area with 18 hours of light and 6 hours of darkness.

Day 21: On the 21st day of their growth cycle, your cannabis plants would have grown 6 to 8 inches tall. You need to clean them up and remove all the lower leaves. 

Day 33: Twelve days later (on day 33), transfer these vegetative plants to the flowering zone, while maintaining the same 18/6-hour light cycle, i.e. 18 hours of light and 6 hours of darkness.

Day 35: Two days later (on 35th day), switch the lighting environment from 18/6 hours to 12/12 hours light cycle.

Day 45: To quicken harvest, you can turn the light cycle from 12/12 hours to 10 hours on and 14 hours off.

Optimal Conditions for Cannabis Clone Growth

If you’re a marijuana enthusiast and want to get a successful harvest, it’s essential to understand the necessary steps and perform each step timely. This concise guide will address your key questions like clone selection, indoor vs. outdoor cannabis cultivation, essential tools, and optimal growing conditions. Just follow these steps to successfully grow healthy weed plants.

  1. Step 1: Preparing Space for Your Clone: At the start of your harvest, create a suitable temperature-controlled growing area. Clones require about 18 hours of light per day during their vegetative stage to develop into healthy flowering plants.
  2. Step 2: Set Up the Ideal Growing Conditions: Ensure proper soil conditions with enough nutrients and leave a gap between the soil surface and the pot’s top for watering. After transplanting, allow the plant a few days to adjust to your provided conditions if it shows signs of stress.
  3. Step 3: Schedule Consistent & Regular Watering: Initially water your clones every two to three days, gradually adjusting as the plants grow. Avoid overwatering, as it may lead to root rot. Be mindful to provide sufficient darkness for root system development.
  4. Step 4: Consider Artificial Lighting: When it comes to speeding up the process of growing, it is important to provide the optimal right conditions. Generally, you don’t want to give your clones very intense lighting. A fluorescent lighting system should be more than enough for your needs. The debate between red light and blue light is ongoing, though many people talk about success with both kinds. You can choose the options like T8 or T12 fluorescent lights. Ensure to maintain a suitable room temperature and prevent excessive heat or dryness, as it may harm your delicate plants.
  5. Step 5: Temperature & Humidity: In terms of temperature, clones often prefer temperatures that sit consistently between 75 and 85 degrees Fahrenheit. You might choose to connect a thermostat to your heat mat to keep tabs on the temperature in the room. You should also aim to keep the environment fairly humid as well. Clones often prefer humidity between 90-100%.
  6. Step 5: Pests & Ailments: Monitor your hashish plants for signs of pests and diseases. Establish proper watering practices and drainage to prevent root rot. Act promptly if issues arise.
  7. Timely Adjust to Changes: Be aware of heat stress, especially during the early stages of the growth cycle. Watch for yellowing, wilting, or browning leaves and provide adequate watering and shade as needed.
  8. Harvest Signs: As your cannabis plant matures, observe key indicators such as trichome color, curling pistils, yellowing leaves, and tight, firm buds. Harvest your crop when trichomes appear half amber and half milky white, and other signs align with optimal harvesting time.

Remember, growing marijuana plants requires timely care and patience. You can maximize the potential of your plants by performing each step timely and providing optimal growth conditions.

Sativa vs Indica Clones


Sativa often grows up to be lanky and tall with long, airy buds and internodal spacing. When it comes to growing indoors, they take quite a bit of time to finish the flowering process compared to Indica. More or less, you can expect to wait anywhere from 8 to 16 weeks for Sativa to finish flowering.

The process of symbiotic rotation is more challenging with Sativa. While you can make it happen, you have to skip the vegetative cycle. In doing so, your plants will likely not finish flowering for 12 weeks or more.


Indica and Indica hybrids are wonderful adaptations, meaning they adapt to symbiotic rotation in a near-flawless manner. If you’re starting from your clone, you can expect your plant to grow up to 10-12 inches in height. Of course, the end height will depend on the internodal length and the chosen genetics.

Clones will likely take anywhere from 7 to 21 days to root, though, again, this depends on genetics and environmental conditions. When your plants reach the 12” mark, you can begin the flowering process.

Optimizing Your Weed Clones Growing Times

Further Assistance

If you need further assistance with the timeline for cannabis clones, just contact us. Our goal here at Big Daddy Clones is to give growers all the information that they need so that they can optimize their growing times.

If you have any questions regarding growing clones, give our professional staff a call at 877-262-6192 today! We value every call and message we receive, and we will get back to you as soon as possible. To buy your first batch of clones, just place an order online.