Bloom Euro A&B Two-Part Base Nutrient

Name: Euro A&B by Bloom — Two-Part Base Nutrient From Veg Through Bloom
Brand: Bloom Yellow Bottles
SKU: BLOOM-EURO-SET-15
Price: 249.95 AUD
Availability: InStock

Bloom Euro yellow bottle, two-part A and B base nutrient by Bloom Yellow Bottles

$249.95

Tax included. Shipping calculated at checkout.

Two-part mineral base nutrient that runs from veg through bloom, sold as an A + B drum set. 1–2ml per litre of each part.

Size

15L Set (2 × 15L)

25L Set (2 × 25L)

Quantity

Handpicked by growers
Ships today
Real advice, real people
5,000+ high yielding customers
30-day returns*
Free shipping over $499*

Low stock - 2 items left
Backordered, shipping soon

Pairs well with

Additives fine-tune, but the base feed is most of the plant's diet. Euro A&B by Bloom is the range's simplified base: one two-part mineral feed that carries plants from veg right through bloom, so there's no switching bases at the flip. Part A brings the nitrogen, potassium, calcium and EDDHA iron; Part B brings the phosphorus, potassium, magnesium and chelated trace elements, with humic acid. You run 1–2ml per litre of each part every feed, leaning a little more on A in veg and on B in bloom, and the Bloom additives stack on top. We're stocking it in 15L and 25L drum sets only, so it suits rooms and serious home growers rather than a single tent.

Every size is an A + B set. You get one drum of Part A and one of Part B in the size you pick, so the 15L set is 2 × 15L and the 25L set is 2 × 25L. The two parts only work together.

One base, whole growVeg through bloom from the same two drums. No second base to buy for the flip.

Shift the ratio, not the productBloom leans the feed toward Part A in veg and Part B in bloom.

Chelated trace elementsIron EDDHA in Part A; copper, manganese, zinc and iron as EDTA/DTPA chelates in Part B.

Drum sets for rooms2 × 15L or 2 × 25L. At 2ml per litre per part, the 25L set makes 12,500 litres of feed.

Built for the Bloom rangeEvery Bloom additive is designed to layer on top of a base like this one.

Hydro, coco or soilBloom pitches its base line at all three.

Specifications

Brand: Bloom (Agricultural Organics)

Type: Two-part base nutrient, veg through bloom

Part A NPK: 9 - 0 - 7

Part B NPK: 2 - 7.2 - 11.8

Part A inputs: Potassium nitrate, calcium nitrate, ammonium nitrate, iron EDDHA, vitamin B1

Part B inputs: Monopotassium phosphate, potassium nitrate, magnesium sulfate, chelated copper, iron, manganese and zinc (EDTA/DTPA), boric acid, sodium molybdate, humic acid (leonardite)

Rate: 1–2ml per litre of each part

When to use: Every feed, veg through bloom; more Part A in veg, more Part B in bloom

Yield: 1L of each part makes 500L of feed at 2ml/L

In each size: One drum of Part A and one of Part B

Sizes: 2 × 15L, 2 × 25L

Made in: South Australia

Biodegradable: Yes, 100% (manufacturer)

Certified organic: No

Grower's Tip

Add Part A to the water and stir it through before Part B goes in. Never pour the two concentrates together undiluted.
Running Silica? It goes in first, into plain water on its own, before Part A.
Start seedlings and fresh transplants at the low end of 1–2ml per litre and build up as the plants size up.
Lean on Part A through veg and Part B through bloom, as Bloom directs. Check EC whenever you shift the ratio.
Add your additives after the base, then check EC and adjust pH last.
Flowering crops? Ooze, Phat and Final are Bloom's core trio. Indoors, hand-water them in with Silica by Bloom.

How To Use It

1Fill your reservoir with plain water. If you run Silica, add it first and stir it through.

2Add Part A at 1–2ml per litre and mix thoroughly.

3Add Part B at 1–2ml per litre and mix thoroughly, leaning on B more once you're in bloom.

4Add any Bloom additives for your stage, then check EC and adjust pH last.

5Feed every watering from veg through bloom, and taper off for the final flush.

Pairs Well With

Ooze by Bloom

The heart of Bloom's flower trio. From week 5 through the flush, for aroma and finish.

Phat by Bloom

Weeks 3–4 of flower, for size and density. Part of Bloom's core flower trio.

Final by Bloom

The ripener for the last two weeks of flower, and the third bottle of the trio.

Silica by Bloom

Goes in the tank first, then Euro A&B, for stronger stems.

Roots by Bloom

The root promoter that runs underneath the whole Bloom program.

Hydroponic Nutrients

Every base nutrient we stock.

Frequently Asked Questions

Do I get both Part A and Part B?

Yes. Each size is a set of one Part A and one Part B in that size, so the 15L set is 2 × 15L drums.

Can I use Euro from veg to flower?

Yes. That's the point of it. Bloom built Euro as one base for the whole grow, with the ratio leaning toward Part B in bloom.

How much do I use?

1–2ml per litre of each part. Bloom's full rate is 2ml per litre per part.

Why are A and B in separate drums?

Because the calcium in Part A would react with the phosphate and sulfate in Part B if they were packed together as concentrates. Keeping them apart keeps everything in solution until you dilute it.

Can I run the Bloom additives on top?

Yes. Every Bloom additive is designed to layer on top of a base like Euro at its normal rate.

Do you sell smaller sizes?

Not at the moment. We're stocking Euro in 15L and 25L drum sets only.

How long does a set last?

At 2ml per litre per part, the 15L set makes 7,500 litres of feed and the 25L set makes 12,500 litres.

Is it certified organic?

No. It's a mineral base nutrient, and Bloom's range is not certified organic.

Select Set Size

One Base for the Whole Grow

Both sets ship as drums at freight rates.

Shop All Base Nutrients

[{"id":53345484701994,"title":"15L Set (2 × 15L)","option1":"15L Set (2 × 15L)","option2":null,"option3":null,"sku":"BLOOM-EURO-SET-15","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Euro A\u0026B by Bloom — Two-Part Base Nutrient From Veg Through Bloom - 15L Set (2 × 15L)","public_title":"15L Set (2 × 15L)","options":["15L Set (2 × 15L)"],"price":24995,"weight":38000,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":53345484734762,"title":"25L Set (2 × 25L)","option1":"25L Set (2 × 25L)","option2":null,"option3":null,"sku":"BLOOM-EURO-SET-25","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Euro A\u0026B by Bloom — Two-Part Base Nutrient From Veg Through Bloom - 25L Set (2 × 25L)","public_title":"25L Set (2 × 25L)","options":["25L Set (2 × 25L)"],"price":39995,"weight":55000,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

Growers First, Retailers Second

Welcome to The Grow Guys

We built The Grow Guys from the soil up — well, coco and perlite. Before we sold gear, we bought it, ran it, and learned the hard way what's worth the money and what ends up in the shed. That's the filter everything on our shelves passes through. No sales scripts, no rebadged junk, no telling you what you want to hear. Just gear we'd run ourselves and advice from people who actually grow. Chasing higher yields, tighter flowers, or your first harvest? You're in the right place.

Meet The Grow Guys

FAQs

Order by 2pm and it ships the same business day from Invermay, Tasmania.

Calculated at checkout by weight and destination. Free shipping over $499*.

Plain packaging, no branding. No one knows what's in your box.

30-day change-of-mind returns on unopened, unused products. A 10% restocking fee applies and return shipping is at your cost.

Call, email, or walk into the Invermay shop. You'll get a grower on the other end, not a script.

Unit 10/110 Gleadow Street, Invermay 7248. Mon–Fri 8:30am–5:30pm, Sat 9am–3pm.

Euro A&B by Bloom — Two-Part Base Nutrient From Veg Through Bloom