Bio Bloom
Fertilizers & nutrients
by Biobizz
We'll only email you about this product — no marketing.
Bio Bloom by Biobizz — Organic Flowering Fertiliser
Bio Bloom Biobizz is a 100% organic flowering fertiliser that feeds your plants through the entire bloom phase with a balanced blend of nitrogen, phosphorus, and potassium, plus enzymes and amino acids. If you're growing anything that flowers — cannabis, tomatoes, peppers, ornamentals — this is the bottle that turns decent buds into fat, fragrant harvests. Available in a 250 ml bottle, it's enough to get you through a small grow or to test the Biobizz line before committing to a larger size. You can buy Bio Bloom Biobizz here at Azarius and get started on your next flowering cycle with confidence.
Why Bio Bloom Belongs in Your Grow Room
Bio Bloom Biobizz is the single most important nutrient bottle for the flowering phase because it supplies the phosphorus, potassium, and organic co-factors that directly drive flower formation. Flowering is where your grow either pays off or disappoints. You can nail the veg phase, dial in your lights, keep your temps steady — but if your bloom feed isn't up to scratch, you'll end up with airy, underwhelming flowers. We've seen it plenty of times: growers who invest in fancy tents and LEDs but cheap out on nutrients, then wonder why their yields look thin.
Bio Bloom solves that problem with a straightforward approach. Phosphorus and potassium drive the formation of flowers, calyxes, petals, and trichomes — the structures that actually matter at harvest. A light nitrogen base keeps the rest of the plant's metabolic processes running without pushing excessive leaf growth when you don't want it. The enzymes and amino acids in the formula optimise nutrient uptake at root level and contribute to a healthy soil biome, which means your plants absorb more of what you feed them instead of letting it sit in runoff.
The result? Bigger flowers with better flavour, aroma, and potency. And because it's fully organic, you're not pumping synthetic salts into your medium — your soil stays alive, your microbes stay happy, and your final product tastes cleaner. That last point matters more than most growers realise. We'd take a slightly smaller organic harvest over a salt-fed one any day, purely on taste and smoothness alone.
What's Inside Bio Bloom Organic Fertiliser
Bio Bloom contains a bloom-specific NPK ratio plus enzymes and amino acids, with each component playing a defined role during the flowering phase. The NPK ratio is specifically calibrated for flowering plants, with phosphorus and potassium doing the heavy lifting. Here's what each component actually does in practice:
| Component | Role During Flowering |
|---|---|
| Phosphorus (P) | Drives flower and fruit formation, energy transfer within cells |
| Potassium (K) | Regulates water uptake, strengthens cell walls, improves overall plant resilience |
| Nitrogen (N) — low level | Maintains core metabolic functions without promoting unwanted vegetative growth |
| Enzymes | Break down dead root material, keep the root zone clean and efficient |
| Amino Acids | Building blocks for proteins, improve nutrient absorption and stress tolerance |
The fact that it's certified under the National Organic Program (NOP) by Control Union isn't just a sticker on the bottle. It means every ingredient has been audited for organic compliance — no synthetic chelates, no heavy-metal-laden rock phosphate, nothing that would disqualify your grow from organic certification if you're farming commercially. According to the EMCDDA's broader reporting on cultivation trends across Europe, organic growing methods have been gaining ground steadily, and NOP-certified inputs like Bio Bloom Biobizz are part of that shift.
One Honest Limitation Worth Knowing
Bio Bloom is a standalone flowering fertiliser, but "standalone" has limits when used in isolation. On its own, it covers bloom nutrition. If you want the full Biobizz experience — and genuinely better results — you'll want to pair it with Bio Grow during the transition weeks and possibly Top Max for that extra push in late flower. Running Bio Bloom solo works, but we've consistently seen fuller harvests from growers who use the complete Biobizz line. It's a bit like running a car on regular fuel when premium is available: it'll work, but you're leaving performance on the table.
Bio Bloom Specifications
The 250 ml Bio Bloom Biobizz bottle ships with the following specifications, covering everything from dosage to certification.
| Specification | Detail |
|---|---|
| Brand | Biobizz |
| Product | Bio Bloom |
| Volume | 250 ml |
| SKU | HS2828 |
| Type | Organic flowering fertiliser |
| NPK Ratio | Optimised for bloom (phosphorus and potassium dominant) |
| Additional Ingredients | Enzymes, amino acids |
| Dosage Range | 1–4 ml per litre of water |
| Application Period | First week of flowering through to 1 week before harvest |
| Growing Media | Soil, coco, hydro |
| Certification | Control Union — National Organic Program (NOP) |
| Organic | 100% |
Complete your Biobizz setup with Bio Grow for the vegetative phase and Top Max for a late-flower boost. Running all three together is the combination that gets the best out of this nutrient line — Bio Bloom handles the core flowering nutrition, Bio Grow fills in the nitrogen during transition, and Top Max pushes flower size and weight in the final weeks. Order all three from our catalogue to get the full Biobizz schedule running from day one.
How to Use Bio Bloom Fertiliser
Mix 1 ml of Bio Bloom per litre of water in the first week of flowering, then gradually increase to 4 ml per litre by late bloom. Biobizz keeps dosing simple — you start low and ramp up as your plants' demand increases through flowering. This schedule works across soil, coco, and hydro setups.
- Begin feeding Bio Bloom from the first week of flowering. Mix 1 ml per litre of water.
- During weeks 2 through 6, gradually increase the dose to 2 ml, then 3 ml per litre as your plants develop more flower sites.
- For late flowering (the final weeks before harvest), increase to 4 ml per litre. This is when your plants are packing on the most weight and need the highest nutrient input.
- Flush your plants with plain water for 1 full week before harvest. This clears residual nutrients from the medium and improves the taste and smoothness of your final product.
- Measure carefully. The cap on the Bio Bloom bottle holds roughly 10 ml, so for a 1-litre mix at full strength (4 ml), you're using just under half a cap. For larger reservoirs, scale accordingly.
One thing we'd add from experience: don't jump straight to 4 ml if your plants look stressed. Watch the leaves. If you see tip burn or dark green foliage, back off by 1 ml per litre and let the plant recover. Organic nutrients are gentler than synthetics, but overfeeding is still overfeeding.
From Our Counter: What We've Seen With Biobizz
Biobizz Bio Bloom is one of the most consistently repurchased organic fertilisers in our catalogue, based on years of sales data and direct customer feedback. We've stocked Biobizz products for years, and the feedback pattern is consistent. Growers who follow the full Biobizz schedule — Bio Grow in veg, Bio Bloom in flower, maybe Top Max or Bio Heaven on top — report noticeably better flavour and aroma compared to synthetic alternatives. The yields might not always be record-breaking (synthetic PK boosters can push raw weight higher), but the quality of what you harvest tends to be a clear step up. For anyone growing for personal use where taste and smoothness matter more than grams per watt, Biobizz is hard to beat.
The 250 ml bottle is the right starting point if you're running 1–4 plants. At 4 ml per litre during peak bloom, you'll go through roughly 20–30 ml per week depending on pot size and watering frequency. That gives you 8–12 weeks of use from this bottle — enough for a full flowering cycle with a bit to spare.
Frequently Asked Questions
Can I use Bio Bloom in coco or hydro, or is it soil only?
Yes, Bio Bloom works in soil, coco, and hydro. Biobizz formulates it for broad compatibility. Just keep an eye on your EC readings in hydro and coco — organic nutrients can behave differently than synthetics in recirculating systems.
Do I need other Biobizz products alongside Bio Bloom?
Bio Bloom works as a standalone flowering fertiliser, but Biobizz recommends combining it with Bio Grow for best results. Bio Grow covers the nitrogen your plants still need during the first weeks of flower transition. Adding Top Max in late bloom can also push flower size and density further.
How much Bio Bloom do I use per litre of water?
Start at 1 ml per litre in the first week of flowering. Gradually increase to 2–3 ml during weeks 2–6, then use 4 ml per litre in late flower. Always flush with plain water for the final week before harvest.
Is Bio Bloom actually certified organic?
Yes. Bio Bloom holds Control Union certification under the National Organic Program (NOP). That's a genuine audit-backed certification, not a marketing label. Every ingredient meets organic farming standards.
How long does a 250 ml bottle of Bio Bloom last?
For a small grow of 1–4 plants, expect 8–12 weeks of use. At peak dosage (4 ml per litre), you'll use roughly 20–30 ml per week depending on how much you water. The 250 ml bottle covers a full flowering cycle comfortably.
Can I use Bio Bloom for fruits, vegetables, and ornamental plants?
Absolutely. Bio Bloom feeds any flowering plant — cannabis, tomatoes, peppers, strawberries, roses, you name it. The NPK blend and amino acids support flower and fruit development across the board.
What's the difference between Bio Bloom and Top Max?
Bio Bloom is your core flowering fertiliser — it provides the NPK, enzymes, and amino acids your plants need throughout bloom. Top Max is a flower booster designed to increase size and weight during the final weeks. They work best together, but Bio Bloom is the one you can't skip.
Last updated: April 2026
