Advanced Nutrients B-52 — Plant Vitamin Supplement for Growth & Stress Relief
Best for: Growers wanting a comprehensive vitamin boost to strengthen plants, support nutrient uptake, and build resilience without overcomplicating the feed schedule
Our thoughts
B-52 is one of those supplements that delivers proper results without needing you to run it at full strength. Growers swear by it for transplant recovery and pushing plants through stress. It's premium-priced, yeah, but the formula's solid—B vitamins, kelp, humic acid all in one bottle. One we recommend a lot for serious growers who want reliable plant health.
Advanced Nutrients B-52 is a plant vitamin and biostimulant concentrate designed to unlock growth potential across all growing systems. It combines a full B-complex (B1, B2, B3, B5, B7), kelp extract, humic acid, and fulvic acid into a single liquid feed that works from seed right through to harvest. Whether you're running hydro, coco, or soil, B-52 integrates cleanly with any base nutrient and delivers visible plant health improvements without faffing about with multiple bottles.
How it compares
B-52 sits in the premium supplement tier, but not because it's overpriced—because it actually works.
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vs RAW B Vitamin: RAW is powder-form and higher in B1 concentration; B-52 is liquid, all-in-one formula with kelp and humic acid included
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vs Kelp4Less B Complex: Kelp4Less is cheaper and dry; B-52 adds humic acid and broader B-vitamin spectrum for more comprehensive plant support
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vs Superthrive: Superthrive is transplant-focused and concentrated; B-52 works throughout the entire growing cycle as a nutritional foundation
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vs Botanicare Vitamino: Similar category; B-52 has wider brand loyalty and proven user satisfaction among serious growers
In short: you're paying for a complete formula that does multiple jobs instead of buying several single-ingredient bottles.
Usage guidance
B-52 works across all growing methods and can be fed via roots or foliar spray.
Standard feeding
Use 2 mL per litre during vegetative growth and weeks 3–6 of flowering. Stop feeding 1 week before final flush. Most growers run it at 1/4 to 1/2 strength depending on plant condition—it doesn't need full-dose application to be effective.
Hydroponic systems
Works with all liquid-feed setups: flood and drain, deep water culture, aeroponics, drip irrigation. Fully compatible with all base nutrients, whether Advanced Nutrients' pH Perfect range or any competitor's.
Soil and coco
Feeds as a supplement alongside your regular nutrient schedule. Foliar spray is especially useful here for rapid nutrient uptake.
Stress response and transplanting
Growers report noticeable recovery within 48 hours when plants are struggling. A dose of B-52 post-transplant accelerates establishment and reduces downtime. It won't magically fix bad conditions, but it does support plants through rough patches.
Application method
Root-feed or foliar—both work. Foliar spray gives faster uptake when plants need quick support. Root-feed integrates it into your regular feeding schedule.
Technical specifications
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NPK Ratio: 2-1-4
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Primary Active Components: B-complex vitamins (B1, B2, B3, B5, B7), kelp extract, humic acid, fulvic acid
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Recommended Dosage: 2 mL per litre (weeks 3–6 flowering; all vegetative weeks); can be reduced to 1/4–1/2 strength depending on plant health
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Application Methods: Root-feed or foliar spray
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System Compatibility: All growing media (coco, soil, hydroton, rockwool); all hydroponic systems (flood and drain, DWC, aeroponics, drip); compatible with all base nutrients
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Available Formats: 250 mL, 500 mL, 1 L, 5 L, 10 L
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Growing Cycle: Seed/cutting to harvest (discontinue 1 week before final flush)
Who this is for
- Growers running multi-stage operations where plant health directly impacts yield
- Anyone working with transplants or pushing plants through environmental stress
- Serious hobbyists and commercial growers willing to invest in proven supplements
- Growers running all system types: hydro, coco, soil, aeroponics
- Anyone using Advanced Nutrients base products (though B-52 works with all competitors' ranges)
- Growers who want one comprehensive vitamin bottle rather than juggling multiple single-ingredient products
Our take
B-52 is a proper all-in-one vitamin supplement that delivers results. The B-vitamin complex supports metabolism and energy conversion; the kelp and humic acid genuinely improve nutrient availability. Growers stick with it because they see healthier, more resilient plants—not hype, just solid performance.
Yes, it's premium-priced, but you don't need to run it at full strength and it works across every growing system. If you're serious about plant health and want something that actually earns its place in the feed schedule, worth picking up. Good time to buy while clearance stock lasts.
