Shogun Samurai Terra Bloom — Single-Part Soil Bloom Nutrient with SmartZen Yield Technology
Best for: Soil growers wanting professional results without multi-bottle complexity, especially those chasing serious yields during flowering
Our thoughts
This is proper kit for soil growers who know what they're doing. Single-part mixing, formulated for UK water, and backed by SmartZen technology that actually delivers results. One we recommend a lot for growers stepping up from basic feeds to something more refined.
Shogun Samurai Terra Bloom is a mineral base nutrient engineered specifically for the flowering phase of soil-grown plants. Unlike coco or hydro systems, soil brings its own nutrient complexity — this is formulated to work with that, not against it. The NPK ratio (5.01-2.02-6.03) is deliberately lower in nitrogen to avoid blocking flowering, and it comes loaded with seven essential micronutrients to prevent secondary deficiencies. Dead simple to use: one bottle, one dosage rate, one part of your feeding routine.
How it compares
Terra Bloom sits in the premium single-part category for soil-grown flowering nutrients.
- Single bottle versus two-part A&B systems — no mixing confusion
- Formulated for UK water hardness (you adjust dosage, not the formula)
- SmartZen technology proven to increase yields up to 8% above standard NPK feeds
- Significantly more cost-effective per application than competitor bloom boosters
- Complete micronutrient profile stops you chasing cal-mag fixes
Most growers running soil either use generic feeds or stack multiple additives. This does both jobs in one bottle.
Usage guidance
Water hardness matters here. Terra Bloom is adjusted for your local water chemistry:
Hard water areas: Start at 2-3ml/L weeks 1-3, drop to 1-2ml/L by week 5-7
Soft water areas: Start at 3-4ml/L weeks 1-3, drop to 2-3ml/L by week 5-7
Dosage tapers through flowering because plants don't need the same feeding intensity as they ripen. Overfeeding at the end causes problems — this schedule prevents that.
Compatible additives: Terra Bloom is a base nutrient, so you can safely stack it with Shogun PK Warrior for mid-flower push, or use it clean on its own. Week 8 onwards, drop Terra Bloom and switch to a ripening agent like Shogun Dragon Force for the final sprint.
Mixing rule: Never add undiluted nutrients to your tank. Add one at a time, stir fully, then add the next. It matters.
Technical specifications
- NPK ratio: 5.01 — 2.02 — 6.03
- Micronutrients: Sulphur (0.9%), Magnesium (0.79%), Iron (0.088%), Manganese (0.04%), Boron (0.08%), Zinc (0.06%), Copper (0.03%), Molybdenum (0.02%)
- Dosage rate: 2-4ml per litre (adjusted for water hardness)
- pH: 2.8–3.5
- Available formats: 1L, 5L, 10L bottles
- Proprietary ingredient: SmartZen (yield-boosting technology)
- Storage: Cool, dry place, minimum 7°C (crystallises below this)
Who this is for
- Soil growers who want one reliable base nutrient instead of juggling bottles
- Growers in hard or soft water areas (it accounts for UK water chemistry)
- Anyone stepping up from generic two-part systems to something more targeted
- Experienced growers looking for measurable yield gains without overcomplication
- Hand-watering, drip irrigation, or automated system users
Particularly suited to growers who understand that flowering nutrition isn't one-size-fits-all and want precision without fuss.
Our take
This is a properly engineered soil bloom nutrient from a UK manufacturer who understands UK growing conditions. SmartZen actually works — the yield bump is real, not marketing noise. And the simplicity of single-part mixing means you spend less time troubleshooting and more time growing.
Good time to buy while stock lasts. Worth picking up if you're serious about dialling in your flowering game without the stress.
