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Commercial Pro Fertiliser Bundle – 20L All Purpose + 2L Cal-Mag + Sprayer

$105.00

Commercial Pro · Best Bulk Value

Our most economical high-volume feeding system, with 20L of balanced All Purpose fertiliser, 2L of separate Cal-Mag support and a reusable hose-end sprayer for large gardens and long-term use.

✓ Long-lasting 20L supply✓ Makes up to 5,000L✓ Reusable sprayer included

What’s included?

20L All Purpose 20-20-20 Liquid FertiliserAll Purpose 20-20-20 Liquid20LMakes 5,000LBulk Everyday Nutrition▼

✓20L of concentrate makes up to 5,000L of ready-to-use feed✓Balanced 20-20-20 nutrition for regular feeding across large gardens✓Supports healthy foliage, active roots and stronger plant growth✓Suitable for vegetables, fruit trees, hedges, shrubs and ornamentals✓Long-lasting bulk volume for repeated feeding over an extended period

2L CompleteGrow Cal-Mag SupplementCal-Mag Supplement2LCalcium & Magnesium Support▼

✓Separate calcium and magnesium nutrition for demanding plants✓Ideal for citrus, fruiting plants, fast growth and heavy feeders✓Mix and apply separately from the All Purpose fertiliser

Hose-End Fertiliser SprayerHose-End Fertiliser SprayerReusable 1L Applicator▼

✓Connects directly to a standard garden hose✓Fast and even application across larger garden areas✓Reusable throughout the life of the bulk fertiliser supply

Makes up to 5,000L of ready-to-use feed for maximum volume, long-term feeding and the lowest cost per litre.

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Boost Plant Growth

Commercial Pro · Best Bulk Value

Bulk nutrition that keeps bigger gardens fed for longer

A high-volume garden feeding system with 20L of balanced All Purpose 20-20-20, 2L of separate Cal-Mag support and a reusable hose-end sprayer for fast, even application across larger areas.
✓ Long-lasting bulk supply 20L concentrate
✓ Makes up to 5,000L ready to use
✓ Reusable sprayer Fast hose application
Everything Included

High-volume garden feeding made simple

Bulk everyday nutrition, additional mineral support and a reusable applicator in one complete system.
20L CompleteGrow All Purpose 20-20-20 Liquid Fertiliser
Main garden feed 20 Litres

All Purpose 20-20-20

Balanced liquid nutrition for healthy foliage, active roots, stronger stems and steady growth across the garden.
✓ Suitable for regular whole-garden feeding
✓ Makes up to 5,000L at the light feeding rate
Lowest cost per litre in the bundle range
2L CompleteGrow Cal-Mag Supplement
Targeted support 2 Litres

Cal-Mag Supplement

Separate calcium and magnesium support for demanding plants, rapid growth and productive fruiting stages.
✓ Useful for citrus, fruiting crops and heavy feeders
✓ Apply separately from the All Purpose feed
Additional support when plants need more
Reusable 1L Hose-End Fertiliser Sprayer
Fast application Reusable

Hose-End Sprayer

Connects directly to a standard garden hose for faster, cleaner and more even feeding across larger areas.
✓ Adjustable dilution settings
✓ Reusable throughout the bulk supply
Feed more of the garden in less time
Why use Cal-Mag?

Extra support when plants need more

Use Cal-Mag separately for flowering, fruiting and nutrient-demanding plants.
1
Healthy flowering plants

More
flowers

2
Healthy tomato plant

Better
fruiting

3
Healthy chilli plant

Heavy
feeders

✓
Use All Purpose regularly. Add Cal-Mag separately when plants need extra support.
Whole-garden coverage

Made for more of the garden you grow

Use the All Purpose fertiliser for regular feeding, then apply Cal-Mag separately when demanding plants need additional support.
🌿 Hedges and screening
🌳 Trees and established plants
🥬 Vegetables and herbs
🍋 Citrus and fruit trees
🌸 Flowers and shrubs
🪴 Pots and ornamentals
i Important: Do not combine the All Purpose concentrate and Cal-Mag in the sprayer. Mix and apply each product separately, rinse between applications and follow the supplied rate instructions.

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Best For These Plants​

How it Works

Feed Your Plants
Watch Them Thrive
Built for bigger gardens

More coverage. Fewer replacements.

Get a long-lasting 20L All Purpose supply, separate Cal-Mag support and a reusable hose-end sprayer for larger gardens and regular feeding.

5,000L Up to ready-to-use feed
Long-lasting supply for repeated feeding The 20L concentrate makes up to 5,000L at the light feeding rate.
20L Fewer replacements Keep enough fertiliser ready for regular garden feeding.
$ Better bulk value Lower cost per litre than repeatedly buying smaller quantities.
✓ Whole-garden coverage Feed trees, garden beds, flowers and established plants.
Ca Cal-Mag when needed Apply separately when demanding plants need extra support.
✓ Secure checkout
Australia-wide delivery
Large garden with established trees, productive vegetable beds, fruit trees, flowers and ornamental plants
Trees & established plants Broad nutrition for larger root zones.
Fruit trees Regular feeding with extra support when needed.
Productive garden beds Balanced nutrition for vegetables and herbs.
Flowers & ornamentals Supports healthy growth and stronger blooms.
Bundle comparison

Choose the right volume for your garden

Choose Commercial Pro for regular feeding across larger gardens and the strongest bulk value. The Medium Growth Bundle is a smaller option for lighter use and lower upfront volume.

Best bulk value
Commercial Pro Bundle

Maximum volume. Fewer replacements.

The better-value choice for larger gardens, regular feeding and customers who want a long-lasting supply.

20L All Purpose liquid fertiliser 2L Cal-Mag supplement Hose-end fertiliser sprayer
Maximum ready-to-use volume Up to the stated volume at the light feeding rate.
5,000L
20L All Purpose 2L Cal-Mag Hose-End Sprayer
5× Five times more All Purpose 20L compared with the Medium Growth Bundle’s 4L supply.
2× Twice the Cal-Mag More support for fruiting, flowering and demanding plants.
✓ Fewer replacements Keep a larger supply ready for repeated garden feeding.
$ Strongest bulk value The economical option for regular, long-term garden use.
✓ Best choice for maximum volume, regular feeding and fewer replacements.
Smaller Garden Option

Smaller volume for lighter use

A practical choice for smaller gardens or customers who prefer less fertiliser upfront.

Complete Grow Medium Growth Bundle
Smaller ready-to-use volume Up to the stated volume at the light feeding rate.
1,000L
4L All Purpose 1L Cal-Mag Hose-End Sprayer
4L Smaller fertiliser supply Suitable when a 20L container is more than you require.
1L Less Cal-Mag included Includes 1L rather than the Commercial Pro Bundle’s 2L.
↻ Replaced sooner Regular feeders may need to purchase another supply earlier.
✓ Best for lighter use Better suited to smaller gardens and moderate feeding.
Choose Medium Growth when storage space or lower upfront volume matters more than maximum bulk value.

How Much to Mix

How Much to Mix

Set the included 1L hose-end sprayer to Setting A and add the amounts shown below.

CompleteGrow 1L hose-end fertiliser sprayer
1L Setting A Included hose-end sprayer Use the mixing amounts below in this bottle.
CompleteGrow 20L All Purpose 20-20-20 Liquid Fertiliser
Quick everyday feeding

All Purpose Liquid 20-20-20

Choose the feeding level suited to your plants and apply using Setting A.

Light 150ml fertiliser
+ 850ml water EC 0.6
Medium Recommended 250ml fertiliser
+ 750ml water EC 0.9
Heavy 300ml fertiliser
+ 700ml water EC 1.9
CompleteGrow 2L Cal-Mag Nutrient Supplement
Calcium and magnesium support

Cal-Mag Nutrients

Use when plants need additional calcium and magnesium support.

Apply separately from All Purpose fertiliser
Standard 100ml Cal-Mag
+ 900ml water Use Setting A Mix well before spraying.
✓ Add the fertiliser first, add the water and mix well. Connect the sprayer to your hose, apply evenly, then empty and rinse the bottle before preparing the other product.

Reviews From Our Gardener's

Reviews

0.0 ★★★★★ Based on 0 reviews
No reviews yet. Be the first.
Ive been using the all purpose NPK 20-20-20 in my garden, and i mean absolutely everything is thriving. My entire garden looks much greener, lemon tree is holding so much, its never produced as much ever. I have also used on my pine trees as they are very old and have started to slow down growth it has make them seriously like young again is really astonishing the results i have been having with there all purpose plant food. Very easy recommendation, really doesn’t compare to any on the market or from the big name stores 10/10!

Loui M

Verified Buyer

Love Love Love this fertiliser brand, they produce such high quality fetrilisers😍My plants and garden are growing really healthy. Like typical Australia soil is lacking nutrients with the organic stuff i tried did not work at all literally showing zero improvement . But with these npk 20-20-20 is has been a game changer my flowers, leaves all just growing really fast as well and plus you get 5,000L. Really good stuff 🌟

Rosie W

Verified Buyer

Commercial Pro Fertiliser Bundle | 20L + Cal-Mag

The CompleteGrow Commercial Pro Bundle is a high-volume garden feeding system designed for larger gardens, productive growing areas and regular long-term use. It combines 20L of concentrated All Purpose 20-20-20 liquid fertiliser, 2L of separate Cal-Mag support and a reusable hose-end fertiliser sprayer.

The 20L All Purpose concentrate makes up to 5,000L of ready-to-use feed at the light feeding rate, providing better bulk value and fewer replacements when feeding fruit trees, vegetables, hedges, shrubs, flowers, ornamentals and established garden plants.

Read full product details +

The balanced All Purpose 20-20-20 formula supplies nitrogen, phosphorus and potassium for healthy foliage, active roots, flowering and general plant growth across mixed garden areas.

The included Cal-Mag supplement provides additional calcium and magnesium for fruiting, flowering and nutrient-demanding plants. Calcium supports plant structure and developing growth, while magnesium supports chlorophyll production and healthy green foliage.

Use the All Purpose fertiliser as the main regular feed. Apply Cal-Mag separately when heavy feeders, productive crops or rapidly growing plants require additional support.

Prepare and apply each product separately according to the supplied directions. Connect the included 1L hose-end sprayer to a standard garden hose for fast application across larger areas, then rinse the sprayer thoroughly between products.

20L
Long-lasting bulk supply More fertiliser on hand for regular feeding across larger gardens and properties.
5,000 L
Up to 5,000L of ready-to-use feed Maximum coverage at the light feeding rate with a lower long-term cost per litre.
Ca Mg
2L of separate Cal-Mag support Additional calcium and magnesium for fruiting, flowering and nutrient-demanding plants.
1L
Reusable hose-end sprayer included Connects to a standard garden hose for fast, even application across larger areas.

FAQ

The bundle includes 20L of concentrated All Purpose 20-20-20 liquid fertiliser, 2L of Cal-Mag supplement and a reusable 1L hose-end fertiliser sprayer. It is designed for larger gardens, productive growing areas and regular long-term feeding.
The 20L All Purpose concentrate can make up to 5,000L of ready-to-use fertiliser at the light feeding rate. The total volume will vary depending on the feeding strength selected and the supplied mixing directions.
It is suitable for vegetables, fruit trees, citrus, hedges, shrubs, garden beds, flowers, ornamentals and established plants. Use the All Purpose fertiliser for regular feeding and apply Cal-Mag separately when fruiting, flowering or nutrient-demanding plants need additional support.
No. The All Purpose fertiliser and Cal-Mag should be mixed and applied separately according to the supplied directions. Use the included hose-end sprayer for each application and rinse the bottle thoroughly before changing products.

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