The 10 Best Autoflowering Seeds of 2024

Looking for premium autoflowering seeds that combine versatility with full feminization?

Are you looking for the best autoflowering seeds that combine versatility with full feminization? Then you’re in the right place. At Sweet Seeds®, we’ve put together this comprehensive guide to showcase the best autoflowering seeds of 2024, ensuring that you can enjoy the finest strains available in the market.

Before diving in, it’s important to highlight that these seeds are renowned and cherished for their speed, resilience, and ease of growing. Not to mention the intense aromas and flavors that define them, making these seeds ideal for beginner growers and a reliable choice for the most experienced growers.

At Sweet Seeds®, after meticulous research, selection, and refinement, we’ve developed a wide catalog featuring some of the best autoflowering seeds available today. These high-quality strains come with diverse chemotypes (THC and CBD levels) and a broad spectrum of flavors and scents that cover the entire cannabis palette.

Keep reading to discover the best autoflowering seeds that you can grow in 2024!

Top 10 of Our Best Autoflowering Seeds

Selecting these strains was not easy at all, since every seed in our catalog is special in its own right. Each comes with exceptional characteristics that make them unique. These superior-quality genetics are very aromatic, resinous, and ideal for growing in the indoor or outdoor gardens of even the most discerning cannabis enthusiasts.

We want to clarify that our list of 10 feminized autoflowering seeds is primarily based on high-yielding genetics, making it easier for you to pick the best autoflowering seeds that are easy to grow, highly aromatic, and capable of delivering outstanding results.

As you may know, the defining feature of autoflowering strains is that they flower based on age rather than the hours of light they receive (photoperiod). Most seeds in this list will be ready for harvest in just 8 to 10 weeks from germination.

Let’s dive in!

Green Poison XL Auto®

Green Poison XL Auto® (SWS71) is the taller version of Green Poison Auto® (SWS30), delivering enhanced yields and size. Despite these improvements, all the organoleptic qualities that made this strain a favorite among growers remain untouched, including its intense aromas and flavors.

Without a doubt, this is one of the best autoflowering seeds for those seeking extra-large plants, ensuring higher yields without compromising quality.

This mostly Indica strain boasts incredible resilience thanks to its vigor and can reach THC levels of up to 20%. If you haven’t experienced it yet, now is the perfect time to expand your collection of cannabis seeds!

Jack 47 Auto®

If you’re a fan of legendary strains like Jack Herer and AK-47, Jack 47 Auto® (SWS31) is an excellent choice for you. This strain combines the best qualities of these two cannabis icons, resulting in an autoflowering hybrid that is sure to impress you.

This Sativa-leaning strain is ready for harvest just 9 weeks after germination. After proper curing, the buds of this plant can reach THC levels between 18-21%, delivering the energetic effects characteristic of top Sativa strains.

When it comes to flavor, Jack 47 Auto® is among the best autoflowering seeds Sweet Seeds® has to offer. It boasts a sweet, citrusy taste with notes of incense, making it a delight for cannabis connoisseurs.

Indoor grows can yield between 450-600 g/m², while outdoor plants can produce approximately 50-200 g/plant.

For those looking to enjoy a classic cannabis strain in an autoflowering version, this is the perfect choice!

Cream Mandarine XL Auto®

If you’re a fan of Cream Mandarine Auto® (SWS29) and found yourself wanting more, you need to check out its extra-large successor, Cream Mandarine XL Auto® (SWS55). This strain earns its place among the best autoflowering seeds thanks to its increased height, improved yields, and exceptional resin production.

Ready for harvest in just 9 weeks after germination, it boasts a dense, citrus mandarin flavor. Its Sativa tendencies provide more psychoactive and creative effects, making it a favorite for enthusiasts seeking a potent, flavorful strain.

Big Devil XL Auto®

For growers with ample space and optimal conditions, Big Devil XL Auto® (SWS28) delivers large plants with substancial harvests. This hybrid combines Big Devil #2 Auto® (SWS20) with an autoflowering Jack Herer, resulting in an extra-large autoflowering strain with plants reaching heights of 110-160 cm.

Developed by the Sweet Seeds®’ R&D Department, this strain is the living proof that autoflowering plants can be both productive and robust. This strain surpasses its predecessor, offering thicker buds and greater yields. With its incense and citrus aromas, Big Devil XL Auto® is the perfect choice for every cannabis grower seeking strength and size in an autoflowering strain.

Cream Caramel Auto®

For those wanting an autoflowering version of one of the most awarded strains in the Sweet Seeds® catalog, Cream Caramel Auto® (SWS22) is an excellent option. This classic strain delivers a high-quality harvest in record time, ready in just 8 weeks from germination.

You can expect resin-covered buds with a sweet aroma and exquisite flavor, alongside a powerful effect. Undoubtedly, it is one of the most loved strains among our best autoflowering feminized seeds of classic genetics.

A true autoflowering masterpiece, it brings the prized traits of its photoperiod-dependent counterpart, Cream Caramel® (SWS04), in a compact, fast-growing form.

Sweet Gelato Auto®

This is an autoflowering strain with a bold American character. Sweet Gelato Auto® (SWS76) stands out for its speed, high yield, and creamy flavor. Its ease of growing makes it a favorite among novice growers.

In just 8 weeks, this outstanding strain delivers abundant, high-quality harvests of up to 500 gr per square meter.

If you’re looking for the quintessential USA flavors in one of the best autoflowering seeds for the year of 2024, this strain should be at the top of your list.

Sweet Cheese XL Auto®

Cheese is a truly iconic strain within the cannabis world, bringing a unique flavor to autoflowering genetics with its cured-cheese undertones. Sweet Cheese XL Auto® (SWS77) is an extra-large version of the popular Sweet Cheese Auto® (SWS33), offering increased size, flower yield, and resin production.

This strain retains the intense Skunk aroma and flavor profile of Sweet Cheese® (SWS19), delivering sharp, aged cheese flavors with spicy undertones, capable of delighting even the most refined cannabis lover.

A classic option among the best autoflowering seeds, Sweet Cheese XL Auto® is ready for harvest in just 8 weeks. This plant is an excellent choice for short grow operations and for those seeking a classic cannabis strain with exceptional quality.

Red Gorilla Girl XL Auto®

Are you a lover of art? Then get ready to experience one of the best autoflowering seeds for 2024, a strain so stunning it could be displayed in a cannabis museum for its extraordinary beauty.

This genetic masterpiece results from crossing Gorilla Girl XL Auto® (SWS82) with Bloody Skunk Auto® (SWS44). Thanks to the latter, about 85% of Red Gorilla Girl XL Auto® (SWS89) seeds produce gorgeous red flowers with THC levels reaching up to 21% or even higher.

But it’s not just beautiful—it’s a delicacy with an intense aroma and a sweet, spicy flavor. If you’re looking to combine beauty, potency, and delightful aromas, Red Gorilla Girl XL Auto® is the perfect choice to complete your collection of cannabis jewels.

Red Strawberry Banana Auto®

Red Strawberry Banana Auto® (SWS90) is the resulting hybrid from the cross between a Strawberry Banana elite clone and our iconic Red Poison Auto® (SWS39).

If you choose this compact autoflowering strain you can be sure to get resinous buds with sweet, fruity aromas and a relaxing indica effect.

Ideal for extraction enthusiasts, its purple-hued resins yield aromatic, high-quality results. If you’re seeking one of the best autoflowering seeds for flavorful and visually stunning extractions, this strain is a must-have. Have you ever seen purple-colored cannabis extractions?

Mimosa Bruce Banner XL Auto®

If you’re into intense experiences, Mimosa Bruce Banner XL Auto® (SWS101) is your ideal choice. Recognized as one of the best autoflowering seeds of 2024, this strain stands out as a true sativa beast in an XL format.

This new strain is the result of crossing an elite clone of Mimosa x Purple Punch with our Bruce Banner Auto® (SWS91). The outcome is a potent, fast-growing, and highly productive USA strain.

This autoflowering strain delivers dense, resin-coated buds loaded with THC, offering effects that spark creativity and imagination.

Under optimal conditions, some plants may display reddish and purple hues on their flowers and leaves during the late flowering phase. Its sweet flavor combines hints of strawberry, cheese, and cypress, making this strain a citrusy temptation impossible to resist.

Optimal Light Cycles for Autoflowering Cannabis Seeds

Autoflowering cannabis seeds are unique strains that do not rely on the number of light hours they receive to begin flowering. Instead, they start their flowering phase automatically once they reach a certain age, usually around 21 days after the germination of the seeds. These seeds inherit their autoflowering trait from the Cannabis Ruderalis subspecies, which is part of their genetic pool. This makes them quick, easy to grow, and compact, ideal for a variety of growing methods and setups.

By choosing the best autoflowering seeds from Sweet Seeds®, you will never need to worry again about adjusting light schedules to trigger flowering. However, the more light these plants receive, the better the results will be. Autoflowering strains can be grown indoors throughout the year. Outdoors, these plants can also thrive year-round, but the best results are achieved during the months with the longest days and optimal temperatures for cannabis growing. This flexibility, combined with their rapid growth and ease of cultivation, makes autoflowering strains a great option for beginners and experienced growers alike.

Indoor growers often rely on specific light cycles to optimize the growth and yield of autoflowering cannabis seeds. The most commonly used cycles are:

• 24 Hours of Light Throughout the Entire Cycle: This option can lead to very productive harvests by maximizing vegetative growth. However, the downside is significantly higher energy consumption. Additionally, the lack of a daily rest period may increase the risk of plant stress in some cases.
• 18 Hours of Light and 6 Hours of Darkness: This is the most commonly used cycle among indoor cannabis growers. It provides good results while allowing for some significant energy savings. Using a timer to control the schedule is necessary. Many collectors of cannabis genetics claim that giving the plants a brief dark period results in healthier growth, making this the most popular method.

Outdoors, autoflowering cannabis seeds are typically grown from March to September in the Northern Hemisphere. These dates are chosen to ensure that the plants receive the maximum hours of light while taking advantage of the most favorable weather conditions for cannabis growing.

The ideal time for germination outdoors also depends on the climate. In warmer regions, it is possible ot grow autoflowering plants starting as early as March. In colder or wetter climates, it is recommended to start growing around mid-April in the Northern Hemisphere.

What Is the Most Potent and Productive Autoflowering Cannabis Seed?

If you are looking for the best balance between effect and yield, this section highlights the top autoflowering cannabis seeds based on their potency and productivity. There are several outstanding options that we are sure you don’t want to miss.

Below, we reveal the most potent and the most productive autoflowering cannabis seeds:

Most Potent Autoflowering Cannabis Seeds

If you are looking for high-potency cannabis strains, we recommend Green Poison XL Auto®, Jack 47 Auto® and Red Gorilla XL Auto®.

Most Productive Autoflowering Cannabis Seeds

If you are looking to fill your jars and have stock for a long time, we would recommend Sweet Gelato Auto®, Big Devil XL Auto® and Cream Mandarine XL Auto®.

Which are the Best Autoflowering Cannabis Seeds for Outdoor Growing?

Autoflowering seeds are especially popular for outdoor growing, as they do not depend on a specific light cycle to flower, and can flower during any time of the year. They allow growers to obtain good harvests without having to invest a large amount of resources.

It is advisable to grow them outdoors during the spring and the summer season when the days are longer and temperatures are warmer. It is also possible to grow autoflowering cannabis seeds outdoors in the off-season, but the yield will be significantly lower.

Autoflowering strains are much more discreet and are usually more resistant to diseases and adverse weather conditions. These qualities make them especially suitable for outdoor growing.

Here are two good examples of our best autoflowering seeds for your outdoor cannabis growing:

• Green Poison XL Auto®
• Jack 47 Auto®

Both are considered among the best autoflowering seeds for outdoor growing.

Which Are the Best Autoflowering Seeds for Indoor Growing?

If you prefer to grow cannabis in greenhouses or grow tents, you must always remember that it’s essential to provide your plants with the optimal environmental conditions to achieve the best results.

Growing with the best autoflowering seeds indoors will ensure excellent outcomes. Among the top options of autoflowering seeds for indoor growing we can find:

• Red Strawberry Banana Auto®
• Cream Caramel Auto ®
• Cream Mandarine XL Auto®

Advantages of Autoflowering Cannabis Seeds

Autoflowering cannabis seeds are gaining increasing popularity and acceptance within the cannabis community due to the many benefits they can offer:

• Speed: Autoflowering cannabis seeds from Sweet Seeds® carry the genetics of the Cannabis Ruderalis subspecies, which shortens and accelerates their life cycle. Their lifespan ranges from 7 to 9 and a half weeks from seed germination and appearance of the cotyledons.
• Discretion: These plants are remarkably compact, making them an ideal choice for balcony or guerrilla growing.
• Ease of Growing: They adapt very well to adverse environmental conditions, thriving where photoperiod-dependent strains may struggle.
• Cost Efficiency: With a shorter life cycle and smaller size than photoperiod-dependent strains, autoflowering seeds require fewer resources, saving growers money in many aspects.
• Resistance to Pests and Mold: These robust plants are resistant due to their Cannabis Ruderalis genetics, which evolved to thrive in cold and challenging climates.
• Adaptation to Light Pollution: Unlike photoperiod-dependent strains, autoflowering plants are unaffected by light pollution from streetlights or other artificial sources, ensuring they will flower even on a balcony exposed to nighttime lighting.

Autoflowering Cannabis Seeds for Everyone

At present time, our catalog boasts a wide range of autoflowering strains. At Sweet Seeds®, our dedication and effort ensure the highest quality in all our products, making us a leading reference among the best autoflowering seed banks.

This article highlights just 10 of the best autoflowering cannabis seeds we offer, focusing on their productivity. However, if you’d like to explore more, we invite you to discover our extensive range, including USA strains, XL autoflowering strains, and even options of premium strains with high CBD content.

Now it’s up to you to choose which are the best autoflowering seeds for you in 2024. We’re here to help!

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Sweet Seeds S.L. is not responsible for any misuse of the information provided in this article. Growing Cannabis may constitute a criminal offense or administrative infraction; please check the Cannabis legislation applicable in your place of residence. Sweet Seeds S.L. does not, under any circumstances, intend to promote illegal practices.