Premium Crop Solutions (PCS) Nutrients Australia: Complete Range Guide

Chris Brubeck. Reviewed August 2026.

Premium Crop Solutions, PCS, is a nutrient range manufactured in Adelaide, South Australia, built around high-grade mineral inputs and a genuinely complete base-plus-additive program. It's a newer name in the Australian hydroponic space, but the results speak for themselves, testing has shown genuinely excellent outcomes, particularly once PK Plus and Quality Enhancer are added through flower. As more growers get hands-on with it, we expect PCS to earn the same recognition as the larger household nutrient brands already established in Australia. This guide covers exactly what's in the range, the real NPK figures behind each product, and how to actually apply PCS's official feeding chart without overfeeding your plants in the process.

Made in Adelaide: Legacy Brand Quality, Without the Import Price

A lot of nutrient brands on the Australian market are imported, and that import journey, shipping, duties, currency conversion, distributor margins, shows up directly in the price you pay at the till. It's manufactured in Adelaide, South Australia, using high-grade mineral inputs, giving growers a locally made option built to match the quality of legacy imported brands without carrying the same price tag.

Being manufactured locally also means shorter supply chains and less exposure to the international shipping delays that have hit imported nutrient brands in Australia over the past couple of years.

The Full PCS Range

PCS is built around two base nutrients and eight targeted additives, each doing one specific job rather than overlapping with another.

Base Nutrients

PCS Grow A & B is the vegetative base, a two-part liquid system supplying nitrogen, calcium, potassium, phosphorus, magnesium, and trace elements including molybdenum. Grow A carries the nitrogen and calcium load (NPK 2-0-0), while Grow B carries potassium, phosphorus, and additional nitrogen (NPK 2-2-6). Used together, they form a stable, balanced vegetative feed suited to hydroponic, coco, and soil systems alike.

PCS Bloom A & B is the flowering counterpart, shifting the ratio toward phosphorus and potassium to support flower initiation and fruit development. Bloom A (NPK 3-0-3) leads with nitrogen, potassium, and calcium, while Bloom B (NPK 1-5-6) carries the heavier phosphorus and potassium load flowering plants need.

Additives

PCS Seaweed (0-0-0.2) is a liquid bio-stimulant derived from seaweed extract, supporting root activity and helping plants manage environmental stress such as transplant shock and temperature swings. Used throughout the full crop cycle.

PCS Cal-Mag + Fe (3-0-0) supplies calcium, magnesium, and iron, particularly useful for growers on reverse osmosis or soft tap water where these elements aren't present in the source water. Calcium supports cell wall strength, magnesium drives chlorophyll production, and iron supports healthy green growth. If you're seeing classic deficiency symptoms already, our Cal-Mag Deficiency guide in the Troubleshooting Index covers how to spot and correct it.

PCS Enzyme (0.01-0.5-0.3) supports root zone health by assisting the breakdown of dead root tissue and organic buildup in the growing medium, keeping the root environment cleaner and more active.

PCS Fulvic (0-0-0) is a fulvic acid additive that assists nutrient chelation and transport, improving how efficiently the plant moves and uses the minerals already in the feed. It also acts as a mild pH buffer, helping your reservoir hold a more stable pH for longer between adjustments. It's not a substitute for proper pH management, but it takes some of the edge off natural drift.

PCS PK Plus (0-18-14) is a concentrated flowering booster, supplemental phosphorus and potassium for mid to late flower when reproductive demand is highest.

PCS Quality Enhancer (0.6-3-2) is the late-stage finisher, formulated to support flower maturation, fruit development, and overall finish quality in the final weeks before harvest.

PCS's Official Feeding Chart: A Ceiling, Not a Target

PCS publishes a detailed week-by-week feeding schedule with target PPM, EC, and pH for both the Grow and Bloom cycles. It's genuinely useful as a reference and a maximum, but it's worth being clear about what it actually represents before you start dosing.

Like every nutrient manufacturer's feeding chart, PCS's numbers assume a perfectly dialled-in environment: stable temperature, correct VPD, strong root development, and a healthy, established plant working under good light. That's the ceiling a plant in ideal conditions can handle and put to use, not the number every plant needs from week one. Real EC needs to be worked toward, not started at, and how quickly you build up depends on your actual environment, the plant's growth stage, and its health, not the chart alone. Our EC targets guide covers this build-up principle in more depth if you want the full reasoning behind it.

A young plant in a less-than-perfect environment, inconsistent temperature, average airflow, a still-developing root system, will show stress well before it reaches the schedule's later weeks. Watch your plant's response at every step rather than assuming the numbers apply evenly across every grow.

Grow Feed Schedule (Official PCS Chart)

Bloom Feed Schedule (Official PCS Chart)

How to Actually Apply This Chart

Start low. Whatever week or stage you're at, begin at roughly half the listed dose rather than the full amount, then watch how your plant actually responds over the following few days before increasing. This matters more at some stages than others. A seedling or freshly transplanted clone has a small, undeveloped root system and very little capacity to process a full-strength feed, while a mature, well-rooted plant deep into vegetative growth can typically handle a faster build-up. The correct EC is never a flat percentage of the chart, it's specific to where your plant actually is in the grow cycle and how it's responding right now, not just which week the calendar says you're on.

If your plant looks healthy, happy, and vigorous, don't reach straight for a stronger feed. Step EC up gradually, in increments of around 0.2, and give the plant a few days to show you how it responds before increasing again. Plants do best in a stable environment, pH and EC included, without major swings, right through to the point they hit flowering. Even then, step EC up slowly, matching the pace to how the plant is actually progressing rather than jumping straight to the chart's next number. Any sign of stress, tip burn, clawing, or slowed growth despite good light, means holding or backing off, regardless of what week you're on. Our nutrient deficiency chart is worth keeping open alongside this feeding schedule so you can quickly tell the difference between a plant that's underfed and one that's simply not there yet in its development. If humidity in your grow space is running low and you can't bring it back up, pull back on EC rather than pushing through. Low humidity increases the rate at which plants transpire, and a plant transpiring faster draws up nutrient solution faster too, effectively taking in a more concentrated feed than the EC reading alone suggests, even though the reservoir itself hasn't changed.

Environment sets the real ceiling. A loosely controlled space, inconsistent temperature, average airflow, unstable VPD, will cap what any plant can productively use no matter how strong the genetics or how precisely you follow the schedule. Tightening environment before pushing EC is almost always the better move. See The Real Order of Priority in Hydroponic Growing and our VPD guide for how environment and light set the ceiling nutrients alone can't raise.

Who PCS Suits

The range is built for both commercial and hobby cultivation. The base nutrients handle the core feeding job on their own, and the additive range lets you build up a more complete program as needed rather than being forced to buy everything from day one. Growers running recirculating systems, coco, or soil will all find PCS's macro and micronutrient profile suited to their setup, it isn't formulated around one specific growing method. Coco growers specifically should read our coco coir guide alongside this one, since coco's calcium demands make the Cal-Mag+Fe additive particularly relevant in that medium.

For larger operations, PCS is also available in commercial quantities beyond the standard retail sizes. If you're running a commercial setup and want to discuss bulk supply, contact us directly and we'll sort out a volume that suits your operation.

PCS Nutrients at Apex Grow

Browse the full Premium Crop Solutions range, including Grow A&B, Bloom A&B, and the complete additive line. For a broader comparison against other Australian-made nutrient brands, see our complete guide to the best hydroponic nutrients in Australia, or our 2-part vs 3-part nutrient guide if you're still deciding on a system type.

Frequently Asked Questions

Is PCS made in Australia?
Yes. PCS is manufactured in Adelaide, South Australia, using high-grade mineral inputs.

Is PCS as good as imported brands like Terra Aquatica or Canna?
PCS is built to match the quality of well-known imported nutrient brands, using high-grade inputs and a genuinely complete base-plus-additive program, without the import costs that push up the price of overseas brands. It's a newer name, so it doesn't carry the same brand history yet, but testing has shown genuinely excellent results, especially with PK Plus and Quality Enhancer added through flower.

Should I follow PCS's feeding chart exactly?
Use it as a ceiling and reference, not a fixed recipe. It assumes an ideal, fully dialled-in environment. Start at roughly half the listed dose and build up in small EC increments based on how your plant actually responds, and remember the correct level depends on the stage of the grow cycle, not a flat percentage of the chart.

What's the difference between PCS PK Plus and Quality Enhancer?
PK Plus is a phosphorus and potassium booster for mid to late flower, supporting flower density and yield. Quality Enhancer is a late-stage finisher focused on flavour and overall finish quality in the final weeks before harvest. They're used together during the flowering cycle, not as substitutes for each other.

Is PCS suitable for coco or soil, or only hydroponics?
All three. The full PCS range is formulated for use across hydroponic, coco, and soil cultivation systems.

Do I need every additive in the PCS range?
No. Grow A&B and Bloom A&B cover the core feeding requirement on their own. The additives each target a specific need and can be added incrementally as your program develops.

Is PCS suitable for beginners?
Yes, provided the feeding chart is treated as a ceiling rather than a starting point. Beginners should start conservatively and build up gradually, watching plant response rather than following the schedule's numbers exactly from week one.

Can I buy PCS in commercial or bulk quantities?
Yes. PCS is available in commercial quantities beyond standard retail sizing. Contact us directly to discuss volume and pricing for a commercial operation.