8 Highest Yielding Cannabis Strains in 2024

Explore our 2024 list of highest-yielding marijuana seeds that produce large, dense flowers – indoors and outdoors.

The cultivars mentioned here have it in their genetics to give large harvests. This means you don’t have to do much – apart from following the best practices of growing cannabis and letting nature take its course.

Cannabis strains that produce large yields

Genetics play an important role when it comes to yields; some strains are just naturally inclined to produce monster buds in sizeable outputs.

Below is our take on the highest-yielding marijuana flowers; we chose them based on the following criteria:

• Indoor yield should be above 550 grams per metre square.
• Outdoor yield should be more than 550 grams per plant.

Do note that the yield mentioned is dry weight – that is, the weight measured after the flowers are harvested and cured to remove excess water.

White Widow

• Lineage: Cross between Brazilian Sativa and South Indian Indica
• Dominance: Hybrid
• THC & CBD: THC: 18% – 25%, CBD: ~1%
• Flowering time: 8-9 weeks
• Average yield: Indoor: up to 550g/m², Outdoor: up to 630g/plant

White Widow – a world-famous classic strain is famous for its resin production. Its large yields make it ideal for producing hash and extracts.

It offers a spicy, earthy flavour with a complex aroma. This strain is known for its potent, cerebral high which is complemented superbly by body effects.

Considering its tropical-like genetics, White Widow is suitable for both indoor and outdoor cultivation; it shows a strong resilience to mould and has a robust nature. It is quite easy to grow, which means newcomers can enjoy strong yields early on in their growing journey.

Big Bud

• Lineage: Northern Lights, Afghani, Skunk #1
• Dominance: Indica-dominant
• THC & CBD: 18-25% THC, CBD: 0-2%
• Flowering time: 7-9 weeks
• Average yield: Indoor: 550-600g/m², Outdoor: upto 1,200 g/plant

Big Bud is a strain that truly lives up to its name. Large colas, high THC levels, and a phenomenally large yield in a short time, this is the prized possession of commercial growers. The Indica genetics are highly noticeable, thanks to her hash-like aroma and resin-rich flowers.

Growing her does require some care – she can reach 2 metres when given full freedom outside. Inside, she can be restricted to 1.2 – 1.5 metres. Sometimes, the branches can also break due to heavy buds – thus warranting proper training and support.

This Indica cultivar is also one of the earliest strains to hit the scene, with its origin going back to the USA in the 1980s.

Critical Kush

• Lineage: Critical Mass, OG Kush
• Dominance: Indica-dominant
• THC & CBD: 20-25% THC, 1-2% CBD
• Flowering time: 7-8 weeks
• Average yield: Indoor: 550-650g/m², Outdoor: Up to 1,000 grams per plant

Critical Kush is the go-to choice for medicinal users who appreciate quantity just as much as quality. It’s particularly noted for its ability to provide pain relief and help with sleep.

With its earthy, woody, and citrus flavours, it offers a pleasant smoking experience that combines a potent body buzz with calming, long-lasting effects.

Cultivators appreciate Critical Kush for its manageable height and impressively high yields – all in a short flowering time of 50-60 days. The height rarely exceeds 1.3 metres – much in line with an Indica plant – and under an experienced hand, she can produce bountiful harvests.

Amnesia Haze

• Lineage: Afghani, Laos, Jamaican, Hawaiian landraces
• Dominance: Sativa-dominant
• THC & CBD: 18-25% THC, 1-2% CBD
• Flowering time: 12-13 weeks
• Average yield: Indoor: ~650g/m², Outdoor: Up to 800 grams per plant

Amnesia Haze features a complex genetic background, mastering which requires a lot of experience. But if done right, you are in for a treat with its large yields.

Famous for its potency and taste, it delivers a strong, euphoric, and energetic high, perfect for creative endeavours and social interactions.

With a long flowering time, it requires patience and plenty of care. Her Sativa traits take time to show and thrive in warm conditions.

This cannabis cultivar is sensitive to its surroundings – particularly temperature, pests, diseases, and humidity levels. While it can be managed indoors, outdoor growers will want to invest in a greenhouse or a tent-like set-up to control the environment.

Bruce Banner

• Lineage: OG Kush, Strawberry Diesel
• Dominance: Sativa-leaning hybrid
• THC & CBD: up to 30% THC, 0-2% CBD
• Flowering time: 9-10 weeks
• Average yield: Indoor: ~600g/m², Outdoor: Up to 1,000 grams per plant

Marked by its sweet, diesel, and strawberry flavours, Bruce Banner delivers a complex experience that’s both cerebral and physical. This strain stands out for its exceptional potency, often reaching up to 30% THC.

Cultivating Bruce Banner can be an engaging experience, as it grows into strong plants that are adaptable to indoor, outdoor, or greenhouse environments. The strain’s balanced Sativa and Indica genetics allow for manageable growth, even in confined spaces. That said, it does need some care and experience to thrive nicely and produce large yields – going up to a kilo per plant outside.

After a flowering period of about 9–10 weeks, growers are rewarded with dense, bright green flowers often decorated with vibrant magenta hues.

Gorilla Zkittlez

• Lineage: Gorilla Glue, Zkittlez
• Dominance: Indica-leaning hybrid
• THC & CBD: up to 25% THC, 0-2% CBD
• Flowering time: 8-9 weeks
• Average yield: Indoor: 500-700g/m², Outdoor: 1,500 – 2,000 grams per plant

Gorilla Zkittlez is celebrated for its complex aroma and flavour profile, blending fresh, fruity, and candy-like notes with an undercurrent of earthy tones. Its effects are as multi-dimensional as its taste, beginning with a relaxing and calming sensation that gradually evolves into a strong and meditative experience.

Growing-wise, the strain reaches a medium height indoors but can stretch taller in outdoor setups – typically ranging from 140-170 cm. Being a Sativa, it has a strong preference for warm climates.

It shines just as beautifully when it comes to yields; an experienced farmer can get up to 2 kilos per plant in dry weight. As such, you will need to employ proper training and pruning techniques for the plant to hold such weight.

Glookies

• Lineage: Gorilla Glue, Thin Mint Girl Scout Cookies
• Dominance: Indica-leaning hybrid
• THC & CBD: up to 25% THC, 0-2% CBD
• Flowering time: 8-9 weeks
• Average yield: Indoor: ~800g/m², Outdoor: 1,500 – 3,000 grams per plant

Glookies by Barney’s Farm is undoubtedly one of the highest-yielding strains in the world. Under good care, this Indica flower can give as much as 3 kilos per plant outdoors and around 700-800 grams per metre square inside.

Due to its high weight, stakes and trellises are a must to support the growth during the flowering phase. It also tends to grow sideways. All things considered, you must be experienced with techniques like low-stress training (LST)/screen of green (ScrOG) to maximise the yields.

In terms of feeling, Glookies hits hard and strong – all the while complemented by taste notes like diesel, chocolatey, and cookies. Whether you want to grow it or smoke it, make sure you have some previous experience with marijuana.

Skunk XL

• Lineage: Afghani, Mexican, and Colombian landraces
• Dominance: Hybrid
• THC & CBD: THC: ~17%, CBD: 0-5%
• Flowering time: 8-9 weeks
• Average yield: Indoor: 600-650g/m², Outdoor: 625-675g/plant

Skunk XL offers a blend of sweet, skunky flavours with effects that balance energetic and calming sensations. It’s a hardy strain adaptable to various climates, making it suitable for both indoor and outdoor cultivation. Like White Widow, she is easy to grow and with some care, you can expect good yields.

Its growth is robust, reaching up to 2 meters outdoors. She can work with hydro and soil set-ups and does well when treated with Sea/Screen of Green training methods.

How to increase the yield of your cannabis plant?

Just like how a Ferrari is only as good as the driver behind the wheels, a cannabis plant can yield flowers only as good as the grower cultivating it.

Here are some tips on how to increase your cannabis yields at home:

• Consider hydroponics: Hydroponics are known to produce large yields – as much as over 20% compared to soil. While it requires skill, experience, and high starting costs, it is a very good way to increase the output without doing much.
• Utilise training techniques: Implement low-stress training (LST) and high-stress training (HST) techniques to encourage more even light distribution and enhance bud growth. Methods like trellising can support the plant’s weight and help develop large buds.
• Enhance with CO2: Adding CO2 can significantly increase yields, especially under intense light. Ensure proper ventilation to keep CO2 levels within the optimal range for plant growth.
• Upgrade your lighting: Replacing older, less efficient lights with white spectrum LED grow lights, which include infrared, can improve plant growth and yield. Infrared helps thicken stems and can increase bud density.
• Optimise light intensity: Ensure your grow space is covered in intense light from corner to corner. It’s a well-known fact that cannabis plants grow well when moved from low-intensity to high-intensity lights.
• Record keeping: Keep track of all variables during each growth cycle to refine your processes for future runs. Analyzing data can help you understand what works best for your setup.
• Improve nutrient management: Focus on feeding the right nutrients at the right time, instead of feeding it all together. During the vegetative phase, plants benefit from high levels of nitrogen and potassium with a moderate amount of phosphorus. The flowering phase requires reduced nitrogen levels, while phosphorus and potassium should be increased.

Conclusion

There are plenty more strains where you can expect large yields; the ones mentioned on the page are the most readily available and easy to work with.

Remember – having a seed with good genetics is not enough; you need to take proper care of your cannabis garden by providing it with the right amount of food, lighting, and support so it can sustain the large colas.

Always be sure to buy your seeds from reputed seedbanks – like the ones listed here – for healthy germination rates and a good growing experience.