Best Cannabis Strains for Light Deprivation: Maximize Your Harvest

Cannabis growers have discovered a method of cultivating that involves deprivation of light or “light dep,” to manipulate light cycles and induce plants to bloom earlier than they would on their own. Because this method allows growers to harvest multiple crops annually, optimize yields, and increase the quality of their cannabis, it is this method that is chosen. Nevertheless, choosing the best cannabis Strains to use in light dep is important. Certain strains are adapted to it for their faster flowering windows, resistance, and flexibility.
Today, we’re going to look at some of the best cannabis strains for light deprivation to get the most out of your harvest and have potent, quality flowers.

What Is Light Deprivation?

Light depreciation (or control) of cannabis plants is done by using blackout tarps or greenhouse covers to keep down the amount of light plants receive. The growth of a plant is controlled by light exposure and reducing light to 12 hours a day triggers growth during the day and by doing so mimics the natural light cycle which triggers the flowering phase in a plant and it will bloom sooner. For outdoor growers who want to harvest before the colder months kick in or multiple harvests in a single growing season, this is a particularly good technique to use.

Benefits Of Choosing The Right Strains For Light Deprivation

To be successful and yield enough of a harvest, you will need to select the correct cannabis strains for light dep. The best strains for light deprivation should have:

Short flowering times to fit within the controlled light cycle.

As the light dep method can increase humidity levels, this method is also highly resistant to mold and pests.

Growth patterns that are robust to light stress.

Light Deprivation: Best Cannabis Strains

1. Gelato

Gelato is a hybrid strain that will finish in around 8-9 weeks and is perfect for being in light deprivation. Often referred to as ‘sweet and funny’, Gelato boasts dense buds and top resin production delivering a very balanced high that is potent. This is why it’s popular when it comes to mold and pest resistance: Both the beginner and the experienced growers like to get maximum yield in their light dep setup.

2. Northern Lights

A classic Indica strain, Northern Lights is best grown in complete darkness. This one flowers super quick and in 7-8 weeks making it ideal for growers who want to get multiple harvests a season out of a single crop. Dense and resinous buds with a sweet spicy smell, Northern Lights is also very caked. With such a strong resistance to diseases and pests, its growth is extremely successful even with the most challenging conditions.

3. Blue Dream

A versatile hybrid strain, Blue Dream can be grown indoors and out and, when grown in light deprivation, there are super strong candidates. This is a moderate flowering time of around 9 to 10 weeks, and produces high yields, with large dense buds. Sweet berry aroma and balanced effects make Blue Dream a favorite among many and produce a soothing body high with a clear head feeling. For light dep, it is an excellent choice for growers looking for a reliable, productive strain.

4. Critical Mass

Critical Mass is an Indica dominant strain that is perfect for light deprivation, first to grow and has extremely high yield potential. The buds are what make it so special, typically flowering in 7 to 8 weeks, and are full of THC. Its known calming, sedative effects allow for Critical Mass to be used both recreationally and medicinally. One reason light dep growers use it is because it has super high resilience to mold and environmental stress.

5. Sour Diesel

A light deprivation strain will be Sour Diesel, one of the most popular Sativa dominant strains. It is known to have a relatively short 9-10 week flowering period, and for its energizing, uplifted effects. These tall plants, with their large dense, fluffy buds have a pungent, diesel-like aroma are the result of the strain. Sour Diesel is known to be pest and mold-resistant, which makes it a great choice for growers who want to get the most crop out of a light dep situation.

Tips for Successful Light Deprivation Growing.

Timing is Key: Make sure you follow a strict light schedule and you should provide 12 hours of darkness every day to stimulate the flowering phase.

Maintain Proper Ventilation: Blackout covers do tend to increase humidity so it is important to evenly ventilate to stop the molds from growing.

Choose Fast-Flowering Strains: Choose strains with shorter flowering times to fit within the limit of the controlled light cycle.

Monitor Plant Health: Make it a habit to always check if your plants show signs of stress, mold, or pests; other ways how to know if your plants are doing well.

Grow With CertaMD

Shop Top Strains

We are ready to help you maximize your cannabis yield with light deprivation. Certamd is dedicated to finding the best strains optimized for a light dep and provides our premium selection to get you started on your next harvest!

Conclusion

For cannabis growers who are seeking that perfect harvest, light deprivation is a powerful technique to utilize. If you pick the right strains for light dep, for example, Gelato, Northern Lights, Blue Dream, Critical Mass, and Sour Diesel, you can get high yields, potent buds, and several harvests a season. Resilient, fast flowering, and perfect for controlled light cycles, they are perfect for getting the most from cannabis growing. CertaMD has got you covered with top-quality strains from which you can begin your light deprivation journey and harvest a bountiful and satisfying crop.

CertaMD Editorial Team
CertaMD's Editorial Team consists of seasoned medical professionals and writers dedicated to delivering accurate, up-to-date health information, including insights on medical cannabis. With a commitment to excellence, they ensure content is both accessible and authoritative for healthcare consumers.

Important Medical Information & Disclaimers

Medical disclaimer

The information on this CertaMD page is provided for educational and informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

All medical marijuana evaluations and recommendations through CertaMD are performed exclusively by licensed U.S. healthcare providers using secure telemedicine technology, in accordance with applicable state laws and regulations.

Always speak with a qualified physician or other licensed healthcare professional before making decisions about your health, changing existing medications, or starting any new treatment, including medical cannabis.

Source: FDA – Cannabis Research & Drug Approval Process

Individual results and treatment response

Medical cannabis does not work the same way for every patient. Symptom relief can depend on factors such as the type of product (THC/CBD ratio, route of administration), dose, frequency of use, underlying medical conditions, concurrent medications, and lifestyle variables like diet, stress, and sleep.

Because response and tolerability vary, ongoing follow-up with your CertaMD provider is important to review benefits, monitor side effects, and adjust your treatment plan safely over time.

Source: NIH – Therapeutic Effects of Cannabis and Cannabinoids

Possible risks and side effects

Like any therapeutic option, medical marijuana can cause side effects. Commonly reported effects include dry mouth, dizziness, fatigue, red or irritated eyes, increased appetite, headache, and temporary problems with attention, concentration, or short-term memory.

Some patients, especially with higher-THC products, may experience anxiety, rapid heartbeat, worsened mood, or perceptual changes; in rare cases, serious effects such as psychosis, significant mood changes, heart rhythm disturbances, or cannabinoid hyperemesis syndrome (recurrent nausea and vomiting) have been reported. If you notice severe, unexpected, or persistent symptoms, stop using cannabis and contact your healthcare provider or seek urgent care.

Source: Mayo Clinic – Marijuana: Safety and Side Effects

Legal and regulatory notice

Medical marijuana programs are created and regulated at the state level, and eligibility, product access, and telemedicine rules vary by jurisdiction. Under U.S. federal law, marijuana remains a Schedule I controlled substance, and clinicians typically “recommend” or “certify” medical cannabis use rather than prescribe it in the traditional sense.

Some states require an initial in-person visit before medical cannabis certification, while others allow both initial and renewal evaluations via telehealth; CertaMD operates within the specific requirements of each state it serves.

Sources: DEA – Controlled Substances Act

Telehealth.org – Cannabis Prescribing and Telehealth

Product quality, sourcing, and safety

For your safety, use only medical cannabis products obtained from licensed, state-regulated dispensaries that perform appropriate laboratory testing for potency and contaminants. Unregulated or illicit products may contain pesticides, heavy metals, microbes, or inaccurate THC/CBD concentrations, which can increase health risks and lead to unpredictable effects.

Ask your CertaMD clinician or dispensary pharmacist about product selection, dosing, onset and duration of effects, and how to store products safely away from children and pets.

Source: FDA – What to Know About Cannabis Products

Reporting adverse events and safety concerns

If you experience serious or unexpected side effects while using medical cannabis, contact your healthcare provider immediately or seek emergency care when appropriate.

Patients and caregivers in the United States can also report adverse events and product problems to the FDA’s MedWatch program online or by phone at
1-800-FDA-1088, which helps regulators monitor safety trends and protect public health.

Source: FDA – MedWatch Safety & Adverse Event Reporting

See how much you could save with a medical card

Note that this is an estimate of savings and does not constitute a guarantee. Additional taxes in your area or recent changes in local laws may affect these rates. Please verify current regulations in your state.

Table of Contents

Latest Posts

How to Get & Renew a Medical Marijuana Card in California​

California is famous for its sunny weather and for being the first state to legalize medical cannabis. Today, you can walk into a store and...

How to Get & Renew a Medical Marijuana Card in Arizona​

Living in Arizona means you have choices when it comes to cannabis. You might see recreational dispensaries everywhere and wonder why you need a medical...
Top 10 Easy-to-Grow Strains

Top 10 Easy-to-Grow Strains

Choosing the right strain is huge if you are new to growing cannabis or looking to make your cultivation process easier. But some strains are...
Top 10 Uplifting And Energetic Strains

Top 10 Uplifting And Energetic Strains

While it’s common to attribute cannabis to its ability to relax, soothe, and calm, it’s also known for giving your mind and body a boost...
Top 10 Best Strains For Making Hash Or Concentrates

Top 10 Best Strains For Making Hash Or Concentrates

They come in the form of cannabis concentrates: hash. From a more seasoned cannabis enthusiast to a novice just dabbing their toes into concentrates, choosing...
Top 10 Medical Strains with High CBD Percentage

Top 10 Medical Strains with High CBD Percentage

Due to their potential health benefits, cannabis strains with high CBD content have come to the front of the line with the medical community. A...