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RARE & EXOTIC PLANTS

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PREMIUM QUALITY

Only the best for your grow

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Nutrients & Additives

Give your plants the fuel they need to thrive.

Browse our complete range of plant nutrients and additives, formulated for both soil-based and hydroponic systems. From base nutrients and bloom boosters to root stimulants, foliar sprays, and microbial inoculants, we’ve got every stage of plant growth covered.

💧 Suitable for all growing media
🌿 Backed by real-world experience & expert advice
🧪 Trusted brands, proven results, great value

Grow smarter with high-performance nutrients and additives from Hydro Oasis, no matter how you grow.

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-10% Back-Order
Xtreme Gardening AZOS - All Sizes — Azospirillum Brasilense Nitrogen-Fixing Bacterial Inoculant
Xtreme Gardening AZOS - 170g — Azospirillum Brasilense Nitrogen-Fixing Bacterial Inoculant
Xtreme Gardening AZOS - 50g — Azospirillum Brasilense Nitrogen-Fixing Bacterial Inoculant

Xtreme Gardening

Xtreme Gardening Azos

Offers naturally fixed nitrogen and stronger roots for healthier, more vigorous plants from the start.

Size
From $40.49
$44.99 From $40.49
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-20%
FloraMax Growth XS - All Sizes — Vegetative Growth Stimulant & Transplant Recovery Tonic
FloraMax Growth XS - 50ml — Veg Stimulant for Node Development & Transplant Recovery
FloraMax Growth XS - 250ml — Veg Stimulant for Node Development & Transplant Recovery

FloraMax

FloraMax Growth-XS

Accelerate vegetative growth with precision-engineered organic extracts cleanly and consistently.

Size
From $35.99
$44.99 From $35.99
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-5%
CANNA Classic Vega A + B - 1L — Two-Part Veg Nutrient for Run-to-Waste Hydroponic Systems
CANNA Classic Vega A + B - 5L — Two-Part Veg Nutrient for Run-to-Waste Hydroponic Systems
CANNA Classic Vega A + B - 10L — Two-Part Veg Nutrient for Run-to-Waste Hydroponic Systems

CANNA

CANNA Classic Vega A+B

Drive strong vegetative growth with a balanced, easy-to-use two-part nutrient solution.

Size
From $61.74
$64.99 From $61.74
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-5%
H&G Soil A+B - 1L — Two-Part Base Nutrient for Soil & Rich Soil Blends
H&G Soil A+B - 5L — Two-Part Base Nutrient for Soil & Rich Soil Blends

House and Garden

H&G Soil A+B

Maximise soil-grown plant performance with a nutrient tailored to the medium’s needs.

Size
From $47.49
$49.99 From $47.49
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-15% Back-Order
Bio Diesel Bio-One - All Sizes — Organic Microbial Inoculant for Living Root-Zone Biology
Bio Diesel Bio-One - 250mL — Organic Microbial Inoculant for Living Root-Zone Biology
Bio Diesel Bio-One - 1L — Organic Microbial Inoculant for Living Root-Zone Biology
Bio Diesel Bio-One - 5L — Organic Microbial Inoculant for Living Root-Zone Biology
Bio Diesel Bio-One - 20L — Organic Microbial Inoculant for Living Root-Zone Biology

Bio Diesel Nutrients

Bio Diesel Bio-One

A living root zone, packed with the biology your plants crave.

Size
From $42.49
$49.99 From $42.49
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-5%
H&G Top Booster - 250mL — PK + Iron Bloom Stimulator for Flower Set & Density
H&G Top Booster - 500mL — PK + Iron Bloom Stimulator for Flower Set & Density
H&G Top Booster - 1L — PK + Iron Bloom Stimulator for Flower Set & Density
H&G Top Booster - 5L — PK + Iron Bloom Stimulator for Flower Set & Density
H&G Top Booster - 20L — PK + Iron Bloom Stimulator for Flower Set & Density

House and Garden

H&G Top Booster

Give your plants the push they need for exceptional flowering performance.

Size
From $18.99
$19.99 From $18.99
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-5%
CANNA Terra Vega - 1L — Single-Part Veg Nutrient for Soil & Potting Mix Cultivation
CANNA Terra Vega - 5L — Single-Part Veg Nutrient for Soil & Potting Mix Cultivation
CANNA Terra Vega - 10L — Single-Part Veg Nutrient for Soil & Potting Mix Cultivation

CANNA

CANNA Terra Vega

Achieve lush, vigorous growth with a soil-focused, ready-to-use vegetative nutrient.

Size
From $47.49
$49.99 From $47.49
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-10%
Dr Greenthumbs Bud Bloom - 1.5kg — Organic Granular Bloom Booster with Kelp Guano & Neem Meal

Dr Greenthumbs

Dr Greenthumbs Bud & Bloom

A versatile enhancer that boosts blooms, enriches soil, and adapts to your growing style.

Size
$26.99
$29.99 $26.99
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-5%
H&G Amino Treatment - 100mL — Plant Amino Acid Bio-Stimulant for Veg & Bloom
H&G Amino Treatment - 250mL — Plant Amino Acid Bio-Stimulant for Veg & Bloom
H&G Amino Treatment - 1L — Plant Amino Acid Bio-Stimulant for Veg & Bloom
H&G Amino Treatment - 500mL — Plant Amino Acid Bio-Stimulant for Veg & Bloom
H&G Amino Treatment - 5L — Plant Amino Acid Bio-Stimulant for Veg & Bloom
H&G Amino Treatment - 20L — Plant Amino Acid Bio-Stimulant for Veg & Bloom

House and Garden

H&G Amino Treatment

Boost plant health from root to tip with an advanced seed-extract formula for stronger, more productive crops.

Size
From $52.24
$54.99 From $52.24
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-5%
H&G Magic Green - 500mL — Foliar Spray for Veg & Early-Bloom Revitalisation
H&G Magic Green - 1L — Foliar Spray for Veg & Early-Bloom Revitalisation

House and Garden

H&G Magic Green

Give your plants a quick, targeted nutrient boost for stronger starts and healthier growth.

Size
From $52.24
$54.99 From $52.24
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Aptus Bloomboost - 100ml
Aptus Bloomboost 250ml
Aptus Bloomboost 500ml
Aptus Bloomboost 1L
Aptus Bloomboost 5L
Aptus Bloomboost 20L

Aptus

Aptus Bloomboost

A fully organic bio-stimulant that optimises your plants' genetic expression!

Size
From $53.99
$59.99 From $53.99
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Aptus Mineral-Calmag 1L
Aptus Mineral-Calmag 5L
Aptus Mineral-Calmag 20L

Aptus

Aptus Mineral-Calmag

Ultra-clean calcium and magnesium your plants can take up straight away!

Size
From $58.49
$64.99 From $58.49
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Aptus Fasilitor - 100ml
Aptus Fasilitor 250ml
Aptus Fasilitor 500ml
Aptus Fasilitor 5L
Aptus Fasilitor 20L

Aptus

Aptus Fasilitor

Silica your plants can use the moment it hits the water!

Size
From $62.99
$69.99 From $62.99
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Aptus Startboost - 100ml
Aptus Startboost 250ml
Aptus Startboost 500ml
Aptus Startboost 1L
Aptus Startboost 5L
Aptus Startboost 20L

Aptus

Aptus Startboost

Organic nitrogen and humic acid that gets roots moving from day one!

Size
From $44.99
$49.99 From $44.99
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Aptus Breakout Powder - 100g
Aptus Breakout Powder 1kg

Aptus

Aptus Breakout Powder

An ultra-clean, pH stable PK booster that sets and bulks your flowers!

Size
From $22.49
$24.99 From $22.49
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Aptus Base 1L
Aptus Base 5L
Aptus Base 20L

Aptus

Aptus Base

The only NPK you need from first leaves right through to harvest!

Size
From $89.99
$99.99 From $89.99
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Aptus Massboost - 250ml
Aptus Massboost 500ml
Aptus Massboost 1L
Aptus Massboost 5L
Aptus Massboost 20L

Aptus

Aptus Massboost

Stop cal-mag deficiencies and firm up the flowers at the same time!

Size
From $76.49
$84.99 From $76.49
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Sold out
Aptus Finaleboost - 250ml
Aptus FinaleBoost 500ml
Aptus FinaleBoost 5L
Aptus FinaleBoost 20L

Aptus

Aptus Finaleboost

Give late flower the potassium it wants, without the phosphorus it doesn't!

Size
From $53.99
$59.99 From $53.99
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Sold out
Aptus Peakboost - 100ml
Aptus Peakboost 250ml
Aptus Peakboost 500ml
Aptus Peakboost 1L
Aptus Peakboost 5L
Aptus Peakboost 20L

Aptus

Aptus Peakboost

A potassium free phosphorus booster for shooting and setting flowers!

Size
From $26.99
$29.99 From $26.99
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Sold out
Aptus Ecozen - 250ml
Aptus Ecozen 500ml
Aptus Ecozen 1L
Aptus Ecozen 5L
Aptus Ecozen 20L

Aptus

Aptus Ecozen

Turns built-up salt back into food and keeps your roots clean!

Size
From $62.99
$69.99 From $62.99
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Aptus System Clean - 500ml
Aptus System Clean 1L
Aptus System Clean 5L
Aptus System Clean 20L

Aptus

Aptus System Clean

Get more oxygen to the roots with every feed!

Size
From $26.99
$29.99 From $26.99
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Aptus Baseboost - 1kg

Aptus

Aptus Baseboost

Mix it in once and feed with nothing but water for months!

Size
From $71.99
$79.99 From $71.99
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-5%
CANNA CalMag Agent - 1L — Cal-Mag Additive to Stabilise Soft Water for Hydroponic Nutrient Mixes
CANNA CalMag Agent - 5L — Cal-Mag Additive to Stabilise Soft Water for Hydroponic Nutrient Mixes

CANNA

CANNA Calmag Agent

Optimise soft or RO water for healthier, more resilient plants.

Size
From $66.49
$69.99 From $66.49
View product
-10% Back-Order
Xtreme Gardening MYKOS WP - 340g — Water-Soluble Mycorrhizal Inoculant for Hydro & Hand-Watering
Xtreme Gardening MYKOS WP - 6.8kg — Water-Soluble Mycorrhizal Inoculant for Hydro & Hand-Watering

Xtreme Gardening

Xtreme Gardening Mykos WP

Rapid root‑zone colonisation for stronger, healthier plants in any growing setup.

Size
From $53.99
$59.99 From $53.99
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