Autoflowering Marijuana Seeds
At Growlobby you'll find maximum quality autoflowering cannabis seeds, selected for their speed, stability and high yield. If you're looking to buy autoflowering seeds online with real guarantee, professional advice and fast, discreet delivery, you're in the right place. Our catalogue includes everything from cheap and productive autoflowering seeds to premium genetics for demanding growers, always with freshness control, professional storage and constantly updated stock. Grow faster, easier and with better results: at Growlobby we don't just sell seeds, we help you get the most out of your grow from day one.
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What are autoflowering cannabis seeds
Autoflowering cannabis seeds (also known as automatic seeds or auto marijuana) are varieties that flower independently of the photoperiod. This means they don't need to change light hours to start flowering, making them one of the quickest, most practical and popular options amongst growers of all levels.
At Growlobby we select the best autoflowering seeds on the market, from cheap autoflowering seeds for beginners to premium high-yield genetics, including bulk cannabis autoflowering seeds for larger crops.
Characteristics of automatic seeds
Autoflowering plants stand out for their speed and simplicity. They come from crossing with Ruderalis genetics, which gives them their automatic flowering ability.
Among their most valued characteristics:
- Complete cycles of 8 to 12 weeks
- Compact size and discreet structure
- High climate resistance
- Easy handling for beginners
- Possibility of multiple harvests per year
That's why they are ideal for both indoor growing and outdoor autoflowering.
How to grow autoflowering seeds (quick guide)
| Light requirements and recommended photoperiod | They work with 18-20 hours of light per day, although some varieties accept 24h. They don't need to switch to 12/12 to flower. |
| Ideal substrate type and pots | They prefer light and aerated substrate, enriched with perlite or coco. Recommended pots are 7 to 15 litres. |
| Watering and nutrition at each stage |
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Types of autoflowering seeds at Growlobby
At Growlobby, you can buy autoflowering seeds selected from the best varieties on the market. If you want to get quick and efficient results in your grow, our seeds are the best option. All come from trusted seed banks, guaranteeing the quality and performance you expect.
- Outdoor autoflowering seeds: ideal for taking advantage of natural sun conditions, and are characterised by their mould resistance, good structure, high yield and adaptation to adverse growing conditions.
- Indoor autoflowering seeds: indoors they are easy to manage and don't require photoperiod changes, allowing you to control all aspects of growth in a controlled environment.
- Bulk autoflowering seeds: offer the same quality as packaged seeds, but at more competitive prices. They're an excellent option for those needing to cover large growing areas.
- XXL autoflowering seeds: for those wanting larger plants and greater production, whilst maintaining the benefits of a quick flowering cycle. These varieties have been improved to maximise yield, without losing the rapid characteristic of autos.
- Autoflowering CBD seeds: offer a high CBD concentration, making them perfect for those seeking the therapeutic benefits of cannabis without the psychoactive effects of THC.
Differences between auto and photoperiod-dependent seeds
The big difference between an autoflowering seed and a photoperiod-dependent one is the start of flowering.
Autos flower on their own, normally between the second and fourth week, whilst photoperiod-dependent seeds need a light change (12/12) to enter flowering.
This makes autos:
- Faster
- More discreet
- Easier to manage
- Ideal for continuous cycles
Whilst photoperiod-dependent varieties offer greater control of size and production in long crops.
What are the best auto brands
At Growlobby, we have a selection of the best autoflowering seed brands. Some of the most notable seed banks we offer are:
Fast Buds
Specialists in autoflowering, Fast Buds is a bank recognised for its high-quality genetics and speed in the growth cycle. They stand out for having introduced varieties like Zkittlez but in autoflowering version.
Barney's Farm
Known for its wide range of varieties, Barney's Farm offers some of the best autoflowering in terms of production and flavour.
Sweet Seeds
Sweet Seeds is famous for its autoflowering varieties with unique flavours and a very characteristic terpene profile.
Grand Cru Genetics
Grand Cru Genetics is one of the brands that has invested in high-quality autoflowering varieties such as Candy Keit Auto and Papaya Melts that stand out in size and production above other banks.
Reviews of our autoflowering cannabis seeds
Reviews of Growlobby autoflowering seeds stand out especially for:
- High germination rate
- Stable genetics
- Good flavour and modern terpenes
- Production in line with claims
We work only with verified banks to guarantee real results.
Buy autoflowering cannabis seeds online at Growlobby
At Growlobby you can buy autoflowering cannabis seeds online with complete peace of mind.
We have:
- Cheap autoflowering seeds
- Bulk autoflowering seeds
- Premium varieties
- Autos for indoor and outdoor
Buy your autoflowering seeds now and start growing fast, easy and with reliable genetics.
Preguntas frecuentes de Autoflowering Seeds
What does it mean for a seed to be autoflowering?
That which flowers automatically without depending on the light cycle. Unlike photoperiodic varieties, autoflowering plants begin to flower at a set time, usually between 2 and 4 weeks after germination, regardless of the hours of light received.
How long does an autoflowering seed take?
The complete cycle of an autoflowering seed from germination to harvest is usually 8 to 12 weeks. Plants begin to flower automatically around 2-4 weeks after germinating and are ready for harvest in approximately 8 weeks.
Which is better, autoflowering or regular seeds?
It depends on the grower's needs. Autoflowering plants are ideal for those seeking a fast-growing, compact and easy-to-manage plant. Regular seeds, on the other hand, are preferred by those looking for both male and female plants, for developing new crosses.
How do you tell if seeds are automatic?
An autoflowering seed is identified by its genetics and characteristics. Generally, autoflowering plants show rapid growth and begin to flower without changes in the light cycle, which distinguishes them from photoperiodic varieties.
How many hours of light do automatic seeds need?
Autoflowering seeds develop with light cycles of between 18 to 20 hours of light per day, although some varieties can grow well even with 24 hours of light and do not need a change to 12 hours of light to flower.
How do you tell if my plant is automatic or feminised?
They differ because the autoflowering plant begins to flower by itself after a few weeks, without needing to alter the hours of light. Both can be female, but autoflowering plants flower automatically.
What happens if I give my automatic plant 24 hours of light?
It can encourage faster growth and higher yields. However, many growers prefer to give them 18 to 20 hours of light and 4-6 hours of darkness to allow the plant to rest.
Should I cover autoflowering seeds for them to germinate?
It is not necessary to cover autoflowering seeds for them to germinate, but they should be kept in a dark, humid and warm environment (around 20-25°C). The most common method is to germinate seeds between damp paper towels or directly in the growing medium.
When should I move autoflowering plants into the sun?
Autoflowering plants can be moved into direct sunlight as soon as they germinate and emerge as seedlings. Ideally, gradually and progressively, so they receive sufficient sunlight without extreme temperatures or sudden weather changes.
How many times should I water an autoflowering plant?
It depends on the size of the plant, the type of growing medium and climatic conditions. In general, it is important not to overwater to prevent mould development or root rot. In warm climates, it may be necessary to water every day, whilst in cooler conditions, it may be once a week.
What is the best soil for autoflowering plants?
The best growing medium for autoflowering plants is an aerated and well-draining substrate that allows rapid root growth. It is recommended to use a light substrate with good water-retention capacity, enriched with perlite and nutrients specific to the early growth stages.
How many litres of soil does an autoflowering plant need?
An autoflowering plant usually needs between 7 and 15 litres of growing medium to develop fully. Since these plants are smaller than photoperiodic varieties, they do not require overly large pots.