Blueberry Auto 00 Seeds · High-THC Autoflowering Strain with Sweet Berry Flavor

Blueberry Auto by 00 Seeds is a potent, compact autoflowering strain that brings the legendary sweet berry flavor and relaxing physical effects of the original Blueberry into a fast, easy-to-grow package with up to 18% THC.

Are you tired of waiting months just to enjoy your harvest?

Most photoperiod strains demand long grow cycles, constant light scheduling, and expert attention just to avoid disappointing yields. You’re left babysitting plants for weeks, only to end up with airy buds and weak flavor.

What if you could grow a legendary strain in under ten weeks — without the stress?

Imagine harvesting dense, frosty buds that smell like fresh-picked blueberries, all while skipping the complicated light switches and topping routines. No more guessing when to flip. No more mold scares from extended flowering. Just plant, feed, and enjoy.

Blueberry Auto delivers the classic experience — faster, easier, and more reliably

This autoflowering gem from 00 Seeds captures everything you love about the original Blueberry: rich terpene profile, potent effects, and beautiful coloration — now in a plant that goes from seed to harvest in just 65–70 days. Whether you're growing in a stealthy indoor setup or a sunny balcony, Blueberry Auto adapts effortlessly, delivering up to 400–450 g/m² indoors and robust outdoor performance from April to November.

What you get with Blueberry Auto

• Classic Blueberry genetics enhanced with autoflowering resilience
• Sweet, fruity aroma with earthy pine and berry notes
• Compact size: 0.70–0.90 m (2.30–2.95 ft) indoors, 1.00–1.20 m (3.28–3.94 ft) outdoors
• High THC content: 18%
• Fast flowering: ready in 65–70 days from seed
• Heavy yields: 400–450 g/m² indoors
• Easy to grow — ideal for beginners and space-limited setups

How your grow routine changes with Blueberry Auto

Forget complex vegging schedules and light cycle stress. With Blueberry Auto, you plant once and let it run. It thrives under an 18/6 light cycle from day one, eliminating the need to switch to 12/12. Its compact structure means no aggressive training needed — just light LST if you want to maximize light exposure. You’ll spend less time pruning and more time watching thick, purple-tinged colas develop under a blanket of trichomes.

Advantages and benefits you’ll notice from day one

• Harvest in under 10 weeks — no waiting
• Sweet, mouthwatering flavor in every puff
• Relaxing body buzz with a clear-headed mental lift
• Compact size fits discreet spaces and small tents
• Resilient to stress, pests, and minor environmental swings
• Consistent phenotypes — what you see is what you grow
• Perfect for making flavorful extracts and edibles

Tips to combine it with other Pevgrow products

Maximize your Blueberry Auto’s potential by pairing it with premium nutrients and root boosters. For faster starts and stronger roots, many growers use mycorrhizae and bloom enhancers to push yields even further.

• Start with StartBooster Aptus to supercharge early root development
• Boost flowering with Bio Nova K 20 for denser, resin-rich buds
• Enhance flavor with Sweet Grams Plus Trabe during late bloom

Technical specifications

• Breeder / Brand: 00 Seeds
• Type: Autoflowering
• Dominance: Indica-dominant hybrid
• Genetics: Blueberry × Ruderalis
• Total cultivation time: 65–70 days (seed to harvest)
• Indoor yield: 400–450 g/m² (13.23–14.88 oz/ft²)
• Outdoor harvest: April to November (Northern Hemisphere)
• Outdoor yield: High (varies by conditions)
• Indoor height: 0.70–0.90 m (2.30–2.95 ft)
• Outdoor height: 1.00–1.20 m (3.28–3.94 ft)
• Difficulty: Low — beginner-friendly
• Structure: Compact, bushy, with dense branching
• Resistance: High resistance to mold, pests, and stress
• Training: Suitable for LST, but avoid topping or FIM (not recommended for autos)
• Recommended pot: 18–27 L final pot (early transplant recommended)
• Light cycle: 18/6 or 20/4 throughout entire cycle
• THC: 18%
• Aromatic profile: Myrcene, Pinene, Linalool
• Flavor: Sweet blueberry, earthy pine, subtle citrus
• Effect: Relaxing body high with a euphoric, creative mental lift — ideal for evening use

How to grow Blueberry Auto successfully

Blueberry Auto is a low-maintenance powerhouse that rewards even novice growers with top-tier results. Follow these key steps to maximize yield, flavor, and resin production.

Safe start and germination

• Germinate seeds at 22–25 °C (71.6–77 °F) in a moist, dark environment
• Use the paper towel method or direct sow into starter cubes
• Transplant carefully once the taproot is 1–2 cm (0.4–0.8 in) long
• Keep humidity high (60–70%) during the first week
• Consider StartBooster Aptus to accelerate root establishment

Stable seedling phase

• Provide gentle light (LED or CFL) at 25–30 cm (9.8–11.8 in) distance
• Water lightly when the top inch of soil feels dry
• Maintain pH between 6.0–6.5 (soil) or 5.8–6.2 (coco)
• Avoid nutrients for the first 7–10 days
• Use airy, well-draining soil to prevent root rot

Directed growth (vegetative stage)

• Keep 18–20 hours of light daily — no light switch needed
• Transplant to final pot (18–27 L) early to avoid root stress
• Apply balanced nutrients once true leaves appear
• Use LST to open up the canopy and improve light penetration
• Keep temperatures at 22–26 °C (71.6–78.8 °F) and RH at 50–60%

Flowering phase

• Flowering begins automatically — no 12/12 switch required
• Reduce RH to 40–50% to prevent mold in dense buds
• Support branches with stakes if needed
• Apply bloom nutrients rich in phosphorus and potassium
• Use Bio Nova K 20 to boost resin and bud density

Harvest, drying and curing

• Harvest when 70–80% of trichomes turn milky-white
• Flush plants 7–10 days before harvest with plain water
• Cut and trim buds, then hang in a dark room at 18–20 °C (64.4–68 °F)
• Keep drying RH at 50–60% for 7–10 days
• Cure in airtight jars for 2–4 weeks, burping daily

Frequently Asked Questions

What is the THC level of Blueberry Auto?

Blueberry Auto has a THC content of approximately 18%, offering a potent yet balanced high that’s great for relaxation and creative focus.

How long does Blueberry Auto take to grow?

From seed to harvest, Blueberry Auto takes 65–70 days. It flowers automatically, so there’s no need to change light cycles.

Is Blueberry Auto good for beginners?

Yes, it’s ideal for beginners. It’s resistant to stress, easy to grow, and doesn’t require advanced techniques like topping or SCROG.

Can I grow Blueberry Auto outdoors?

Absolutely. It thrives outdoors from April to November in temperate climates. Just ensure it gets plenty of sunlight and protection from heavy rain.

Does Blueberry Auto smell strongly during flowering?

Yes, it has a strong, sweet berry aroma. Use a carbon filter in indoor grows to maintain discretion.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Blueberry Auto in my 1.20 x 1.20 m (4 x 4 ft) tent with a 300W LED and 20/4 lighting. I started with three seeds in 20L pots — all germinated. I used a soil/coco mix and kept it simple: light nutrients, regular watering, and light LST at week 3. No topping, no stress. By week 8, the trichomes were milky, and the buds were dense, purple, and sticky. The flavor? Absolutely unreal — like fresh blueberry pie. The high was deeply relaxing but not couch-locking. I’d grow this again in a heartbeat. Pro tip: don’t overfeed — this strain hates nutrient burn. Let the terpenes shine.