The fastest autoflowers have a relatively short period before they begin to pop. From seed to nugs can be a mere 9 to 10 weeks. That’s a short period, so you’ll get your buds before you know it.
If automatic flowering appeals to you, then you likely want to know which are the fastest-growing autoflower strains. We will look at attributes such as flowering time, effects, and flavour.
You’ll probably also want to know how powerful each strain is. And finally, we’ll look at expected yields.
1. AK-47 Autoflower - 42-56 days
The balanced hybrid AK-47 Auto provides relaxing and stimulating effects suitable for all-day use.
It flowers in just 42-56 days. The dense, trichome-covered buds have an earthy, sweet, sugary aroma and taste. THC reaches 21%, while CBD is 1%. Indoor yields are 400-500g per m².
Outdoors, expect 60-90g per plant. With its rapid flowering, balanced effects, and solid yields, the AK-47 is among the fastest and best autoflowers.
2. Sweet Tooth Autoflower - 42-49 days
The aptly named Sweet Tooth Auto strain has a sweet, citrusy, floral flavour that satisfies cravings.
Despite its short stature, outdoor yields can reach up to 200g per plant. After just 42 days, you can harvest the sugar-coated buds, which provide an uplifting and relaxing high from head to toe.
With heavy yields in a short time and a taste that curbs any sweet tooth, Sweet Tooth is one of the fastest autoflowers.
3. Northern Lights x Big Bud Autoflower - 42-49 days
The Northern Lights x Big Bud Auto strain combines relaxing indica properties with some mental stimulation, making it great for all-day use.
It takes 11-12 weeks to harvest. The large flowers have a sweet, earthy aroma and citrusy flavour. Indoor yields reach 500-600g per m².
Outdoors, up to 100g per plant, is possible. With solid yields and well-rounded effects, this strain produces abundant buds in a moderate harvest time.
4. Black Jack Autoflower - 42-49 days
The Sativa-dominant Black Jack Auto takes only 6 weeks from seed to bud, with a total harvest in 9 weeks.
It provides energizing, mentally stimulating effects that are ideal for daytime use, such as improved concentration and focus. The dense, frosty buds have a sweet, spicy fruit profile and 23% THC.
In addition to its speed, Black Jack delivers yields up to 550g per m² indoors and 250g outdoors. Its rapid growth, energizing sativa effects, and substantial yields make Black Jack a top high-yielding autoflower strain.
5. Hindu Kush Autoflower - 39-49 days
The Hindu Kush Auto strain flowers in just 39 days, the fastest of any autoflower.
Originally from the Hindu Kush mountains, this easy-to-grow, Indica-dominant strain allows multiple outdoor harvests per season. With optimal conditions, yields reach 100g per plant.
The buds have an earthy, sweet Kush flavour and deeply relaxing effects. Hindu Kush's rapid growth and serene properties explain its enduring popularity over centuries as an ideal unwinding strain after work.
