The Top 10 Fast-Flowering Cannabis Strains

If you’re looking for fast-growing strains, there are plenty of fast-growing and fast-flowering cannabis seeds for cultivators to choose from. Many will be autoflowers, but some are photoperiod strains that simply flower faster than normal.

Remember that autoflowering varieties tend to grow faster than feminized and regular seeds, and they do not need changes in the light cycle to go into their flowering stage. However, there is a tradeoff. Autoflowers tend to produce smaller cannabis plants and yield less when it’s time to harvest.

Lowryder autoflower is one of the fastest-growing cannabis strains in the world. Legends also tell us Lowryder is one of the first-ever autoflowering strains in the entire world.

This 80% indica strain can grow in as little as seven weeks when cared for properly and provide you with 5-15oz per plant. It took nine generations of breeding to create Lowryder autoflower, but your flowers will bloom faster. Plus, due to the Ruderalis genetics, this fast flowering strain can withstand extreme growing conditions. 

Read our full strain review of Lowryder, or shop for Lowryder autoflower seeds.

This strain not only flowers fast; it’s also well-known by cannabis cultivators and enthusiasts worldwide. This 75% indica strain is ready to flower in as little as seven weeks with autoflower seeds and eight weeks with photoperiod feminized seeds.

OG Kush can be grown indoors and outdoors, depending on your preference and available space. OG Kush fem will produce taller plants that reach around 35-63 inches, so it’s essential to make sure you have the space to support its growth. 

Read our full strain review of OG Kush, or buy OG Kush feminized seeds and OG Kush autoflower seeds.

Jack Herer is one of the most popular marijuana strains that has made it to many top 10 lists. For this particular strain, its fame is due to how influential it was in history and how easy it is to grow. And its autoflowering variant makes that experience easier and faster by having a short flowering period of as little as seven weeks. Jack Herer is an easy strain to grow strain, producing buds with THC levels of up to 20%. It can also produce a decent yield of 5-15 ounces per plant.

Jack Herer is best grown indoors to give you a much easier time. This is the perfect fast-growing cannabis strain for beginners and is considered the “grower’s dream” by many experts because it is so easy to grow.  

Read our full strain review of Jack Herer, or shop for Jack Herer autoflower seeds.

This 80% indica strain is well-known amongst cannabis cultivators for being easy to grow and high-yielding. Big Bud feminized cannabis can produce high yields of 16-25 oz per plant and has a flowering time of as little as nine weeks. It may not be the fastest-flowering strain compared to others on the list, but the yield-to-flower time ratio makes up for it.

When growing Big Bud, it’s important to note that the strain likes warm climates, and as the plants can grow quite tall, growing outside may be a better option. Big Bud also grows thick stalks, so it’s best to support the plants with tensioned wires or strings. 

Read our full strain review of Big Bud, or buy Big Bud feminized seeds.

Candy Kush or Kandy Kush is a 75% indica strain perfect for enjoying towards the end of the day. This strain’s soothing nature delivers a pleasant high and makes you feel mellow and relaxed.

Candy Kush is one of the best fast-flowering seeds that flower in as little as seven weeks and produce up to 14 oz of yield when grown indoors. When grown outdoors, Candy Kush can produce up to 17 ounces. These indica plants will do extremely well indoors using scrogging or low-stress training techniques.

Read our full strain review of Candy Kush, or shop for Candy Kush feminized seeds.

This 80% indica strain contains high levels of THC (22%) and CBD (5%), making it one of the more unique strains. Not only is Critical Mass an absolute delight to consume, but it flowers pretty quickly, too. Enjoy a decent yield of around 17 oz per plant in as little as eight weeks. For autoflower seeds, Critical Mass will yield 5-15oz per plant with a slightly faster flowering phase of seven weeks.

Critical Mass is an easy grow, even for beginners who want to try cannabis cultivation. It’s important to note that this strain prefers a warm and sunny climate, similar to the Mediterranean. 

Read our full strain review of Critical Mass, or buy Critical Mass feminized seeds and Critical Mass autoflower seeds.

Blue Cheese is a world-famous strain known for delivering a strong indica effect paired with a very distinct smell and taste of, yep, you guessed it—berries and cheese. With THC levels of around 19%, Blue Cheese is a potent strain that delivers strong effects, a balanced high, and no drowsiness.

Blue Cheese cannabis plants can flower in 8-9 weeks and yield 5-9 oz per plant. This strain may produce a lower yield, but the end result is well worth it. This strain has won numerous awards, including  “Best Cannabis” at the High Times Cannabis Cup.

Read our full strain review of Blue Cheese, or shop for Blue Cheese feminized seeds and Blue Cheese autoflower seeds.

Despite being the slender version of the comic book hero The Incredible Hulk, Bruce Banner still packs a mean punch with high levels of THC over 20%. This 60% sativa strain has won numerous awards and is one of the most potent strains tested in the history of the Cannabis Cup.

Bruce Banner auto will be ready to flower in as little as seven weeks, and you’ll yield an average of 5-6 oz per plant when grown indoors. When growing Bruce Banner outdoors, your potential yield increases to 12-15 ounces per plant. 

Read our full strain review of Bruce Banner, or buy Bruce Banner feminized seeds and Bruce Banner autoflower seeds.

Created by South California Labs, LA Confidential is a popular mix of Afghani and OG LA Affie strains. This super strain contains THC levels well over 20% and is ready to flower in as little as six weeks. So, not only is this powerhouse strain very potent, but LA Confidential is one of the fastest flowering strains on our list.

LA Confidential was originally created for indoor gardens and thrives in areas with consistent temperatures and controlled humidity. If you’re considering growing LA Confidential, give this strain temperatures between 68-80 degrees Fahrenheit. 

Read our full strain review of LA Confidential, or shop for LA Confidential feminized seeds.

Our list wouldn’t be complete without a cookie strain,  and luckily for cannabis growers, this Cookies and Cream strain flowers in as little as seven weeks. Cookies and Cream is a 70% indica dominant strain with high THC levels of over 20%. Created by combining Girl Scout Cookies (GSC) and Starfighter, this strain has become a delicious go-to for cannabis enthusiasts.

Cookies and Cream plants can be challenging for beginners to grow as they require special care. That being said, the autoflower version of Cookies and Cream has less of a learning curve and is more manageable for beginner-intermediate growers who want to try cultivating it. 

Read our full strain review of Cookies and Cream, or buy Cookies and Cream autoflower seeds.