Fertilizers & nutrients
by Plagron
We'll only email you about this product — no marketing.
Green Sensation is a concentrated 4-in-1 flowering stimulator by Plagron that combines a PK fertiliser, enzymes, enhancers, and a proprietary booster into a single bottle. Instead of juggling four separate products during the flowering phase, you add 1 ml per litre of water and let the formula handle the rest — from resin production to sugar transport and essential oil development. If you grow indoors or outdoors and want heavier, more compact buds with better flavour, this is the product we reach for first.
Green Sensation comes in three sizes. The 100 ml bottle covers 100 litres of nutrient solution — enough for a small tent with 2-4 plants through a single flowering cycle. The 250 ml bottle suits a medium setup or gives you a second run. The 1000 ml bottle is the grower's choice if you're running multiple tents or cycling through harvests regularly. At 1 ml per litre, the maths is dead simple: match the bottle size to your total water usage during bloom.
| Variant | Volume | Makes (litres of solution) | Best For |
|---|---|---|---|
| HS0553 | 100 ml | 100 L | Small tents, single cycle, trial run |
| HS2553 | 250 ml | 250 L | Medium setups, 4-8 plants |
| HS2554 | 1000 ml | 1000 L | Larger grows, multiple cycles |
Green Sensation packs four distinct functions into one product, which is why Plagron can claim it replaces up to four separate bottles from other brands. Here is what each component actually does:
| Component | Function | What You Notice |
|---|---|---|
| PK Fertiliser | Supplies phosphorus and potassium during bloom | Improved flowering, stronger plant resistance, better end product quality |
| Enzymes | Prevent nutrient deficiencies, stimulate soil life, reduce oxygen waste | Healthier root zone, fewer yellowing leaves mid-bloom |
| Enhancers | Trigger nutritional reactions inside the plant | Better taste and increased yield |
| Booster (GS-PowerParticles) | Proprietary blend that aids resin production, sugar transport, and essential oil production | Stickier, more aromatic flowers with denser trichome coverage |
Plagron keeps the exact composition of their GS-PowerParticles under wraps — it is their proprietary blend and they are not sharing the recipe. What we can tell you from stocking this product for years is that growers who switch to Green Sensation consistently report denser, heavier buds with noticeably more aroma. The enzyme component is the unsung hero: it keeps the root zone active and healthy, which means your plant can actually absorb what you are feeding it instead of locking out nutrients halfway through flower.
Most fertiliser lines sell you a PK booster, a separate enzyme product, a bloom enhancer, and a finishing booster — four bottles, four price tags, four mixing calculations. Green Sensation consolidates all of that into a single 1 ml per litre addition. Plagron estimates this can save you up to 50% on plant food costs depending on your substrate and growing style. That is not marketing fluff; it is basic maths. Fewer bottles means fewer chances to over-feed or create nutrient imbalances, which is where most growers run into trouble during late flower.
We have seen growers come into the shop with feeding schedules that look like chemistry exams — eight products, different ratios for each week, pH swinging all over the place. Green Sensation simplifies that dramatically. You still need your base bloom nutrient (Plagron's own Terra Bloom, Hydro A+B, or whatever base you are running), but the rest of the bloom stack collapses into this one bottle. For the grower who wants results without the spreadsheet, it is hard to beat.
The one honest limitation: Green Sensation is not a base nutrient. You still need your NPK foundation — this is the bloom booster that sits on top. We get asked at least once a week whether you can use Green Sensation alone. You cannot. Pair it with a proper base nutrient and you are sorted. Skip the base and your plants will show deficiencies within days.
Dosing Green Sensation is straightforward. Plagron specifies 1 ml per 1 litre of water (a 1:1000 ratio), and we would not deviate from that. Overfeeding bloom boosters is one of the fastest ways to burn your plants in late flower — the phosphorus and potassium concentrations are high enough that even small overdoses cause tip burn and nutrient lockout.
Green Sensation works with every substrate — soil, coco, hydro, even aeroponics — and is compatible with all watering systems including drip, ebb-and-flow, and hand watering. That said, if you are running recirculating hydro, keep an eye on your EC more closely. The concentrated PK content can push your reservoir EC up faster than you expect.
| Specification | Detail |
|---|---|
| Brand | Plagron |
| Product Type | 4-in-1 Flowering Stimulator |
| Active Components | PK fertiliser, enzymes, enhancers, GS-PowerParticles booster |
| Dosage | 1 ml per 1 litre of water (1:1000) |
| Application Phase | Flowering / Bloom |
| Suitable Substrates | Soil, coco, hydro, aeroponics |
| Indoor / Outdoor | Both |
| Watering Systems | All types (drip, ebb-and-flow, hand watering, recirculating) |
| Available Sizes | 100 ml, 250 ml, 000 ml |
| Potential Savings | Up to 50% on plant food (replaces 4 separate products) |
Complete your Plagron feeding schedule by pairing Green Sensation with Plagron Terra Bloom as your base nutrient for soil grows, or Plagron Hydro A+B if you are running a hydroponic setup. For growers who want to push root health even harder during early flower, Plagron Power Roots makes a solid companion during the transition week. And if you are setting up a new grow space, check out our grow tents and complete grow kits to get the environment dialled in before you start feeding.
We have had this conversation hundreds of times at the counter. A grower walks in with a list: PK 13/14, a bloom enzyme, a flavour enhancer, and a finishing booster. Four products, four different brands sometimes, and a feeding chart that requires a calculator. The total cost adds up fast, and the risk of overfeeding or creating antagonistic nutrient interactions goes up with every bottle you add to the mix.
Green Sensation is Plagron's answer to that complexity. One bottle, one dosage rate, one addition to your reservoir. The trade-off? You lose some granular control. If you are the type who likes to dial in each component individually — more PK in week 5, more enzymes in week 3 — then a modular approach gives you that flexibility. But for 90% of growers we talk to, the simplicity of Green Sensation produces equal or better results with far less fuss. The GS-PowerParticles are something you genuinely cannot replicate by mixing off-the-shelf products, because nobody else knows what is in them.
The best bloom booster for most growers is the one they will actually use correctly. And a single-bottle solution at 1 ml per litre is about as foolproof as it gets.
Do not exceed 1 ml per litre. We have seen growers assume that more is better with bloom boosters — it is not. Excess phosphorus locks out calcium and magnesium, and excess potassium locks out calcium entirely. The result is crispy leaf edges, brown spots, and a stressed plant right when it should be packing on weight. Stick to the 1:1000 ratio. If your plants look hungry, the issue is almost always in your base nutrient or pH, not in the booster.
No. Green Sensation is a bloom additive, not a base nutrient. It provides PK, enzymes, enhancers, and a booster, but your plants still need a complete NPK base like Plagron Terra Bloom or Hydro A+B. Always add Green Sensation after your base nutrient.
Start from the first day of the flowering phase — when you switch to a 12/12 light cycle indoors or when outdoor plants begin showing flower sites. Continue through the entire bloom period until your final flush or final week before harvest.
Yes. Green Sensation is substrate-neutral. It works with soil, coco, hydro, and aeroponic systems. Just pair it with the correct base nutrient for your medium — Plagron Cocos A+B for coco, for example.
GS-PowerParticles are Plagron's proprietary booster blend inside Green Sensation. They support resin production, sugar transport, and essential oil development. Plagron does not disclose the exact composition — it is their trade secret and a key reason this product stands apart from generic PK boosters.
Yes. Green Sensation is compatible with any base bloom nutrient, not just Plagron's own line. Add it at 1 ml per litre, then top up with your base nutrient to reach your target EC. Monitor EC closely the first time to make sure you are not overshooting.
Plagron claims up to 50% savings on plant food because it replaces four separate products: a PK booster, an enzyme product, an enhancer, and a finishing booster. Your actual savings depend on what you were buying before, but consolidating into one bottle consistently costs less than four individual products.
Overfeeding causes nutrient lockout — excess phosphorus blocks calcium and magnesium uptake, leading to brown spots, crispy leaf edges, and stunted bud development. Stick to 1 ml per litre. If you suspect overfeeding, flush with plain pH-adjusted water and resume at the correct dose.
Last updated: April 2026
