Plagron Feed Chart
Plagron 100% Coco is Cocos A&B the whole way through, ramping from 1.5 to 3.5 ml per litre, with the additive block sat on top. The chart below is Plagron’s own schedule, with the target EC on every week. Underneath it, our free calculator fits it to your pot size, plant count and cycle length, and works out exactly how much you need to buy.
Build my Plagron 100% Coco chart →
The Plagron 100% Coco — hand feeding feed chart
Millilitres per litre of water. Veg here is four weeks and flower nine, which is the commonest UK cycle. If yours is longer or shorter, the calculator fits the same schedule to it rather than simply running out.
Swipe the chart sideways to see every week.
| Week | Cocos A&B | Power Roots | Pure Zym | Sugar Royal | Power Buds | Green Sensation | Target EC |
|---|---|---|---|---|---|---|---|
| Veg week 1 | 1.5 | 1.0 | 1.0 | 1.0 | – | – | 1.3 |
| Veg week 2 | 2.0 | 1.0 | 1.0 | 1.0 | – | – | 1.5 |
| Veg week 3 | 2.0 | 1.0 | 1.0 | 1.0 | – | – | 1.5 |
| Veg week 4 | 2.0 | 1.0 | 1.0 | 1.0 | – | – | 1.5 |
| Flower week 1 | 2.5 | 1.0 | 1.0 | 1.0 | 1.0 | – | 1.7 |
| Flower week 2 | 3.0 | 1.0 | 1.0 | 1.0 | 1.0 | – | 1.9 |
| Flower week 3 | 3.5 | 1.0 | 1.0 | 1.0 | 1.0 | – | 2.1 |
| Flower week 4 | 3.5 | – | 1.0 | 1.0 | 1.0 | 1.0 | 2.5 |
| Flower week 5 | 3.5 | – | – | 1.0 | 1.0 | 1.0 | 2.5 |
| Flower week 6 | 3.5 | – | – | 1.0 | 1.0 | 1.0 | 2.5 |
| Flower week 7 | 3.5 | – | – | 1.0 | 1.0 | 1.0 | 2.5 |
| Flower week 8 | 3.5 | – | – | 1.0 | 1.0 | 1.0 | 2.5 |
| Flower week 9 (flush) | – | – | – | – | – | – | – |
Target pH 5.5 to 6.5. Plagron print their doses per 10 litres. The chart here is converted to millilitres per litre so it reads the same way as every other brand on the site. Multiply by ten if you are checking it against their own sheet.
Hand feeding and system feeding are different charts
Plagron publish two additive blocks for 100% Coco, and they are not the same. Hand feeding assumes you are mixing a can at a time and watering by hand. System feeding assumes a tank and a pump, which changes both what goes in and how often.
The base feed is identical either way. What moves is the additive schedule around it, which is why picking the wrong one costs you money on bottles you did not need rather than burning the crop.
Mix to the EC, not to the millilitres
The doses above assume your water starts at zero. UK tap water usually sits between 0.3 and 0.5 EC before you add anything, and that counts towards the targets in the last column.
So on tap water you will reach the chart’s own EC with slightly less nutrient than it prints. Use the doses to get close and the meter to know. On RO, the printed figures are the ones to run.
What a full Plagron 100% Coco run costs
For a common UK setup, nine plants in 3 gallon Quick Fill coco bags, four weeks of veg and nine of flower, the whole cycle comes to about £329 across 6 products, mixing roughly 1,500 litres of feed.
The single biggest line on that bill is Plagron Green Sensation at around £99, against £39 for the base feed itself. That is worth knowing before you order, because it is usually the additives rather than the base that decide what a run costs.
The calculator prices your actual grow rather than this example, and prices the other fifteen brands alongside it, so you can see what you are paying for.
Price my Plagron 100% Coco run →
Which Plagron line should I be on?
100% Coco is the coco chart. 100% Terra comes in a Lightmix and a Growmix version, and which of those you want is decided by the bag you bought rather than by how you grow: Lightmix is barely fertilised so feeding starts in week one, Growmix carries the plant for the first couple of weeks on its own.
- Plagron 100% Coco — system feeding — The same base on Plagron’s system-feeding block: Hydro Roots instead of Power Roots, and no Pure Zym or Sugar Royal. Their EC row runs higher from week one. Plagron dose per 10 litres; the chart here is converted to millilitres per litre.
- Plagron 100% Terra — Lightmix — Terra Grow for the two grow weeks, then Terra Bloom for the rest. Lightmix is barely fertilised, so the feed starts in week one. Plagron dose per 10 litres; the chart here is converted to millilitres per litre.
- Plagron 100% Terra — Growmix — No Terra Grow at all and no base until week four: Growmix is pre-fertilised, so the sheet lets the soil do the early feeding and starts on an EC of 0.6. Plagron dose per 10 litres; the chart here is converted to millilitres per litre.
The calculator only ever lists the lines that suit the medium you pick, so you cannot accidentally run a soil chart in coco.
What you need for a Plagron 100% Coco run
- Plagron Cocos A&B
- Plagron Power Roots (optional)
- Plagron Pure Zym (optional)
- Plagron Sugar Royal (optional)
- Plagron Power Buds (optional)
- Plagron Green Sensation (optional)
Or let the calculator work out the sizes and quantities for your own grow and put the lot in your basket in one click.
Open the Plagron 100% Coco calculator →
The Hydro Bros is not affiliated with, endorsed by or approved by Plagron. The figures above are transcribed from Plagron’s own published feed chart. They are a starting point rather than a prescription: read your own runoff and your own meter, and adjust to your room.
