TriPart Bloom flowering fertiliser
Regular price
Dhs. 44.00
Regular price
Sale price
Dhs. 44.00
Unit price
/
per
| Contenance | Prix | Prix au L | vs 500 ml |
|---|---|---|---|
| 500 ml | Dhs. 44.00 | Dhs. 88.00 | — |
| 1 L | Dhs. 61.00 | Dhs. 61.00 | −31 % |
| 5 L | Dhs. 187.00 | Dhs. 37.40 | −58 % |
| 10 L | Dhs. 318.00 | Dhs. 31.80 | −64 % |
Liquid mineral bloom fertiliser with an NPK formula of 0-5-4 and no nitrogen, enriched with 3% magnesium and 5% sulphur: phosphorus for flower initiation, potassium for fruit development. The third part of the TriPart system, suitable for hydroponics, coco fibre, and soil. Available from 500 ml to 10 L.
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The summary
- What it is: a liquid mineral NPK fertiliser 0-5-4, rich in magnesium and sulphur, and the third part of the TriPart system.
- When it comes into play: introduced from the first leaves at a low dose, it becomes dominant at flowering, where it reaches 2.4 ml per litre.
- How much to use: 2.4 ml per litre in hydroponic flowering, 2.1 ml per litre in soil. The calculator converts the amount for your reservoir.
- Zero nitrogen — why: nitrogen stimulates leaf growth at the expense of flowers. That is the role of Grow, which is reduced at this stage.
- Documents: application chart and safety data sheet in French, available to download.
- Sizes and shipping: 500 ml, 1 L, 5 L or 10 L, dispatched from France.
Phosphorus, potassium, magnesium and sulphur, nitrogen-free, for flowering
TriPart Bloom is the flowering fertiliser in Terra Aquatica's TriPart system, a liquid mineral fertiliser with an NPK formula of 0-5-4, enriched with magnesium and sulphur. It is the former FloraBloom from General Hydroponics. A plant in flower no longer needs the same inputs as a plant in growth: it demands phosphorus to form buds and transport energy, potassium to fill its fruit, and no longer needs nitrogen in quantity. This bottle is made for that stage, and its formula says so plainly.
Two less-discussed elements nonetheless do a great deal of work here. Magnesium, at 3%, is the atom at the heart of chlorophyll: a plant in full fruit production quickly runs short of it, and this shows on the lower leaves, which turn yellow between the veins. Sulphur, at 5%, is involved in the production of amino acids and aromatic compounds. This is the part of the formula that influences the flavour and aroma of a harvest.
The classic mistake: waiting too long for it
Bloom is added from the very first week
Many growers only reach for it when the first flowers appear. That is too late: the plant builds its roots and phosphorus reserves well before that point. From the first roots, the dose is 0.5 ml per litre, and it never drops to zero. What changes through the cycle is the ratio with Grow, not the presence of Bloom.
How the ratio shifts
Growing
Grow dominates at 1.8 ml per litre, Bloom stays lower at 0.6. The plant produces leaves and stems.
In pre-flowering
All three converge at around 1.5 to 2 ml per litre. That is the tipping point, and the moment at which the target pH rises back towards 6.4 to 6.8.
In flower
Bloom takes the lead at 2.4 ml per litre, Grow drops back to 0.8. Flowers and fruit take over from leaves.
These values apply to hydroponics and coco fibre. In soil, all doses should be lower, because the grow medium retains and releases some of the elements itself: 0.5 ml per litre during growth and 2.1 during flowering. The calculator on this page works out the amounts for your volume, and the full table is available to download.
On tomatoes, strawberries and peppers
These are the crops where Bloom makes the most difference, because they bear fruit over weeks and steadily deplete their potassium reserves. With lettuces or herbs harvested leaf by leaf, the benefit is far less: that is where Grow does the work. Our article what to grow in hydroponics through the seasons helps place each crop in context.
Crop by crop, what Bloom changes
The question comes up every time: do you actually need Bloom for what you're growing? The answer comes down to a single distinction, whether you're harvesting fruit or harvesting leaves.
| Crop | Bloom dose during flowering | What you'll notice |
|---|---|---|
| Tomato | 2.4 ml per litre | It fruits continuously for three to four months, and potassium demand doesn't drop off between trusses. This is the crop where moving to the higher dose shows results most quickly. |
| Strawberry | 2.4 ml per litre | It produces in successive flushes and draws on its reserves with each one. Our strawberry guide covers varieties and growing conditions in detail. |
| Pepper | 2.4 ml per litre | It flowers and sets fruit continuously throughout summer: phosphorus and potassium are in demand simultaneously, with no rest period in between. |
| Aubergine | 2.4 ml per litre | Large fruits that swell quickly once set, meaning high potassium demand concentrated over just a few weeks. |
| Cucumber | 2 to 2.4 ml per litre | Continuous harvest and high water consumption. It's best to stay towards the lower end of the range to avoid building up salt concentration in the solution as you top up with water. |
| Lettuce, spinach | 0.5 to 0.6 ml per litre | Harvested as leaves, they never reach a useful flowering stage. Bloom stays at the background dose, and it's the Grow that does the work. |
| Basil, rocket | 0.5 to 0.6 ml per litre | Same principle. Here, flowering is precisely what you want to delay, as it makes the leaves taste bitter and tough. |
The doses shown are taken from the official application chart and apply to hydroponics and coco fibre; in soil, allow around 15 per cent less. If you're still deciding what to grow, our article on 15 plants to cultivate will help you put together a bed where Bloom genuinely earns its place.
Reading a phosphorus or potassium deficiency during flowering
Phosphorus deficiency
The leaves take on an unusually dark green, then purplish tints appear on the undersides of the veins and on the stems. Flowering is delayed, buds form slowly and remain small. The symptom starts on the oldest leaves.
Potassium deficiency
The edges of older leaves brown and dry out while the centre of the blade remains green, then the blade curls. Fruit stays small and soft, and ripens unevenly from one side to the other.
Before concluding there is a deficiency and increasing the dose, check the pH. During flowering, the target rises towards 6.4 to 6.8, the range where phosphorus is most available; below 5.5 or above 7, it binds to the calcium and iron in the solution and becomes unusable even though it is present. A purplish tint on the stems may also simply be a varietal characteristic or a reaction to cold nights, unrelated to nutrition. Our articles on pH regulation and on micro-deficiencies help you decide before adjusting the dosage.
Bloom does not make up a complete solution on its own. Without the Micro, there is no iron, no calcium, and no trace elements, and the plant will decline within a fortnight regardless of how much phosphorus is available. The three bottles are poured separately into the water, rinsing the measuring cup between each: two concentrates brought into direct contact will precipitate, and the deposit that forms at the bottom is no longer available to the plant. The Starter Kit brings all three together in 500 ml so you can test the system.
What a flowering costs, in euros
A figure nobody publishes, yet one that genuinely influences your choice of format. Prices as at 25 August 2026. Method: price of the bottle divided by its volume in millilitres, multiplied by the stage dose, for a 100-litre reservoir at full-bloom dosage.
| Part | Dose per 100 L | Cost at 1 L format | Cost at 5 L format |
|---|---|---|---|
| TriPart Bloom | 240 ml | 3.34 euros | 2.06 euros |
| TriPart Micro | 160 ml | 2.38 euros | 1.60 euros |
| TriPart Grow | 80 ml | 1.11 euros | 0.69 euros |
| Total | 480 ml | 6.83 euros | 4.34 euros |
Amounts rounded to the nearest cent, with totals calculated before rounding. The same reservoir prepared at full-growth dosage works out at 5.12 euros in the 1 L format: bloom therefore costs roughly a third more, and this particular bottle accounts for the difference. Moving from 1 L to 5 L cuts the bill by around 36 per cent at the same dose. For soil growing, subtract approximately 15 per cent from each line. The full calculation at growth stage is detailed on the TriPart Grow product page, and Micro remains the component that increases most consistently from one stage to the next.
From a safety standpoint, this is the most straightforward of the three: its safety data sheet does not classify it as hazardous, with no hazard pictogram or warning statement, whereas the Micro requires eye protection. It remains a concentrated fertiliser, keep it closed, upright, and out of reach of children. For the solution itself, everything hinges on pH: our article on pH regulation explains why a correct dose in the wrong water achieves nothing.
Technical specifications
The essentials
- Formula
- NPK 0-5-4No nitrogen. Phosphorus and potassium are the two drivers of flowering and fruiting.
- Magnesium
- 3 % de MgOCentral atom of chlorophyll. A deficiency shows on the lower leaves, which turn yellow between the veins.
- Sulphur
- 5 % de SO3Found in amino acids and aromatic compounds. This is the part of the formula that influences flavour.
- Role in the system
- Flowering stagePresent at all stages, dominant from flowering onwards.
- Appearance
- Pink liquid, odourlessThe colour prevents mixing up the containers when measuring doses.
- Flowering dose
- 2.4 ml per litreHydroponics and coco. In soil, 2.1 ml per litre.
- Growth dose
- 0.6 ml per litreIt never drops to zero, even when Grow dominates.
- Target pH during flowering
- 6.4 to 6.8Higher than in the growth phase, where you aim for 5.5 to 6.5.
Safety, storage and identification
- Regulatory classification
- Not classified as hazardousNo pictograms, no hazard statements. Precautionary statements P101 and P102.
- Concentrate pH
- 4,47That of the product in its container, not to be confused with the target pH in the reservoir.
- Relative density
- 1,16One litre weighs approximately 1.16 kg.
- Hazardous substances
- None Above the ThresholdsUnlike the Micro, it contains no substances declared or classified as SVHC.
- Storage
- Upright, sealed, coolStore in a cool, well-ventilated place away from foodstuffs. A crystal deposit indicates storage that is too cold.
- Shipping
- Not regulatedThe product is not classified as hazardous for transport.
- Manufacture
- Fleurance, FranceTerra Aquatica, formerly General Hydroponics Europe.
- Former name
- FloraBloomSame product, sold under the General Hydroponics Europe brand before the name change.
8 further specifications are available in the detailed view.
In the box
- 1 bottle of TriPart Bloom in the chosen size: 500 ml, 1 L, 5 L, or 10 L.
- No dosing cap or syringe supplied: use a measuring jug graduated in millilitres.
- The Grow and the Micro are not included: they are sold separately and are essential for a complete solution.
- No pH or conductivity tester included: see the water testing collection.
- No printed instructions included: the application chart is available to download in the documents section.
The 0-5-4 formula is the one printed on the label and confirmed by two independent retailers, who list 5% P2O5, 4% K2O, 3% MgO, and 5% SO3. The pH of the concentrate, the density, the appearance, and the classification come from the manufacturer's French safety data sheet, version 7 dated 26 December 2023. Dosages and pH ranges come from the official application chart. The trace element breakdown is not published: the exact composition is presented as a trade secret.
Grow, Micro, Bloom: what each one does in the TriPart system
The three bottles are not interchangeable, and none of them is used on its own. Bloom is the one that increases as the other two step back, during flowering and fruiting.
| Total nitrogen (%) | Phosphorus, P2O5 (%) | Potassium, K2O (%) | Supplies calcium and iron | Supplies magnesium | Available in soft water and hard water versions | First roots (ml/L) | Full growth (ml/L) | Pre-flowering (ml/L) | Flowering (ml/L) | Present at high levels at every stage | Classified as hazardous | Goggles required when measuring | Liquid colour | Former name at General Hydroponics | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TriPart GrowYour choice | 3 % | 1 % | 6 % | no | yes | no | 0,5 ml/L | 1,8 ml/L | 2 ml/L | 0,8 ml/L | no | no | no | Green | FloraGro |
| TriPart MicroYour choice | 5 % | 0 % | 1 % | yes | no | yes | 0,5 ml/L | 1,2 ml/L | 2 ml/L | 1,6 ml/L | yes | yes | yes | Dark brown | FloraMicro |
| Recommended TriPart BloomYour choice | 0 % | 5 % | 4 % | no | yes | no | 0,5 ml/L | 0,6 ml/L | 1,5 ml/L | 2,4 ml/L | no | no | no | Pink | FloraBloom |
TriPart Grow
Formula as declared on the label
Total nitrogen (%)3 %
Phosphorus, P2O5 (%)1 %
Potassium, K2O (%)6 %
Supplies calcium and ironno
Supplies magnesiumyes
Available in soft water and hard water versionsno
Dosage in hydroponics, millilitres per litre
First roots (ml/L)0,5 ml/L
Full growth (ml/L)1,8 ml/L
Pre-flowering (ml/L)2 ml/L
Flowering (ml/L)0,8 ml/L
Use and safety
Present at high levels at every stageno
Classified as hazardousno
Goggles required when measuringno
Liquid colourGreen
Former name at General HydroponicsFloraGro
TriPart Micro
Formula as declared on the label
Total nitrogen (%)5 %
Phosphorus, P2O5 (%)0 %
Potassium, K2O (%)1 %
Supplies calcium and ironyes
Supplies magnesiumno
Available in soft water and hard water versionsyes
Dosage in hydroponics, millilitres per litre
First roots (ml/L)0,5 ml/L
Full growth (ml/L)1,2 ml/L
Pre-flowering (ml/L)2 ml/L
Flowering (ml/L)1,6 ml/L
Use and safety
Present at high levels at every stageyes
Classified as hazardousyes
Goggles required when measuringyes
Liquid colourDark brown
Former name at General HydroponicsFloraMicro
TriPart BloomRecommended
Formula as declared on the label
Total nitrogen (%)0 %
Phosphorus, P2O5 (%)5 %
Potassium, K2O (%)4 %
Supplies calcium and ironno
Supplies magnesiumyes
Available in soft water and hard water versionsno
Dosage in hydroponics, millilitres per litre
First roots (ml/L)0,5 ml/L
Full growth (ml/L)0,6 ml/L
Pre-flowering (ml/L)1,5 ml/L
Flowering (ml/L)2,4 ml/L
Use and safety
Present at high levels at every stageno
Classified as hazardousno
Goggles required when measuringno
Liquid colourPink
Former name at General HydroponicsFloraBloom
The formulas are those printed on the bottle labels. The dosages are those from the official application table, hydroponics and coco fibre column; for soil, allow approximately 15 per cent less. Bloom also provides 3 per cent magnesium and 5 per cent sulphur , two elements not detailed in this table, as no published equivalent figures exist for the other two. Prices do not appear in this table: they are correct elsewhere on the page, in your currency.
Documents & manuals
TriPart application chart, hydroponics, coco and soil, multilingual document
The official schedule, stage by stage, in millilitres per litre for Grow, Micro, and Bloom. It also gives the conductivity and pH ranges, and the place of the range's additives. This single file is multilingual and includes both French and English, so it is not available as two separate versions.
TriPart Bloom safety data sheet, in French
Version 7 dated 26 December 2023. Regulatory classification, physicochemical properties, storage instructions and first aid measures.
Safety data sheet TriPart Bloom, in English
The same safety data sheet in English, version 7 dated 26 December 2023. Useful for passing the document to a non-French-speaking contact, or for checking a chemical name in its original formulation.
Document not showing? Some publishers block display inside a frame, so open it in a tab.
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Estimated time
It covers preparing your order and then the transit time quoted by the carrier, counted in working days.
It is not a guaranteed delivery date: public holidays, peak periods, customs or a carrier delay can extend it. The exact amount, in your currency, is worked out in the cart once your address is entered.
Liquid not classified as dangerous for transport, dispatched by tracked parcel from France. Weight ranges from approximately 600 grams for the 500 ml to approximately 12 kilos for the 10 L: exact shipping costs and delivery times are displayed at checkout once your address has been entered. Outside the European Union, import duties and taxes remain the responsibility of the recipient.
Frequently asked questions
14 questions
6 key questions, 14 in the detailed view
No questions in this category.
How much TriPart Bloom for your reservoir
Enter the volume of water in your reservoir. The calculation applies the flowering dose for hydroponics and coco, 2.4 ml per litre.
L
5 L1000 L
0ml
of TriPart Bloom, flowering dose in hydroponics and coco
Same stage, but in soil
0 ml
This dose is for flowering. During growth, Bloom drops to 0.6 ml per litre, and at first roots to 0.5. It is always used alongside Grow and Micro, never alone. During flowering, the target conductivity is 1.4 to 2.2 mS and pH 6.4 to 6.8.
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