Growth Technology IONIC Coco Feed Chart – Doses by Stage
Growth Technology's own published IONIC schedule for coco. By growth stage, in millilitres per litre of water.
- All dosesper litre
- pH and EC5.8 – 6.2 · 1.5 – 2.0 mS/cm
- Base feedCoco Grow 5ml, Coco Bloom 7ml
Every figure is millilitres per litre of water, except the cells written 5ml/10L. Those are per ten litres — 5ml in a full ten-litre can, which is half a millilitre in a single litre.
Getting it right
- Growth Technology publish this by stage, not by week. Their leaflet has three columns — Propagation, Grow and Bloom. The grid above sets those stages out across the weeks they cover, over a cutting week, four Grow weeks and eight Flower weeks, with Growth Technology's own dose repeated in each week of a stage. If your plants stay in Grow for six weeks rather than four, carry the Grow figures on — the dose does not change, only the number of columns.
- Liquid Silicon is ten times weaker than the rest of the chart. Its cells read 5ml/10L, so it is 5ml in a ten-litre can. Dosing it at 5ml per litre is ten times the published rate. Add it to the water first, before the base feed, and set pH last.
- Coco holds nothing back for the plant. Unlike soil it carries no nutrient reserve of its own, so every watering has to be a full feed at the chart rate. Water alone between feeds and the plant is going hungry.
- Run coco wet and let it drain. Feed until 10 to 20% runs out of the bottom of the pot. That run-off carries away the salts that would otherwise build up in the fibre and push your EC out of the 1.5 to 2.0 window.
- There is no CalMag row on this chart. Ionic Coco Grow and Ionic Coco Bloom are built for coco, and the schedule as published does not add a separate calcium and magnesium supplement.
- Formulex is the propagation feed. Cuttings and seedlings get 5ml per litre at pH 6.0 and EC 1.5 — that is the Cutting 1 column. Grow 1 does not begin until the plant has roots.
- Keep Ionic Coco Grow running through Flower 1. Growth Technology carry the Grow feed one week past the switch to twelve hours, so it holds its 5ml at Flower 1. It then stops, and Coco Bloom takes over on its own from Flower 2 to Flower 8.
- The Boost row is twice weekly, at Flower 5 to Flower 8. The chart's Ionic Boost is a flowering PK. The bottle we stock now is Ionic PK 14/15 Boost, which is a stronger concentration used once a week rather than at every feed — dose that one to its own label, not to the 1ml on this chart.
- GreenMyst Humic also goes through the coco before you plant. As well as the 5ml per litre in the feed, Growth Technology use it at 5ml per litre to pre-treat fresh coco.
- The rest of the rows are optional extras. Superdrive is a vitamin and hormone tonic at 1ml per litre throughout. Nitrozyme is a seaweed extract — 5ml per litre misted onto young plants, then 5ml per ten litres in the tank. GreenFuse Root, Grow and Bloom are stage-matched plant extracts at 1ml per litre — Root at Cutting 1, Grow across Grow 1 to Grow 4, Bloom from Flower 1 to Flower 8.
Everything on the chart
Formulex
From £5.49
5ml, Cutting 1
Ionic Coco Grow
From £12.49
5ml, Grow 1 to Flower 1
Ionic Coco Bloom
From £12.49
7ml, Flower 2 to Flower 8
Ionic PK 14/15 Boost
From £7.45
The bloom booster, weekly
Liquid Silicon
From £3.49
5ml per 10 litres, every stage
Nitrozyme
From £14.49
5ml as a mist, then 5ml per 10 litres
Common questions
Growth Technology publish by stage — where do the week numbers come from?
Their leaflet has three columns, Propagation, Grow and Bloom, and no weeks at all. The grid above lays those stages out across the weeks they cover, over a cutting week, four Grow weeks and eight Flower weeks, with Growth Technology's own dose repeated in each week of a stage. No figure has been invented, and if your grow runs longer or shorter you use the stage the plant is actually in.
What does 5ml/10L mean?
Five millilitres in ten litres of water. Most of this chart is per single litre, but Liquid Silicon is printed per ten litres, and so is Nitrozyme once the plant is past propagation. A ten-litre watering can takes 5ml of Liquid Silicon in total.
Do Coco Grow and Coco Bloom overlap?
Only briefly. Ionic Coco Grow holds its dose through Flower 1, the first week after you switch the lights to twelve hours. It then stops, and Ionic Coco Bloom runs on its own from Flower 2 to Flower 8.
How long should the lights be on?
Eighteen hours a day through Cutting 1 and the four Grow weeks, twelve hours a day from Flower 1 onwards.
Growing in soil or hydroponics instead?
Growth Technology publish a separate IONIC schedule for each, at different rates and a different pH range. All of our charts are listed on the feed charts index.
Shop the full Growth Technology range
Figures as published by Growth Technology on their own IONIC Schedule leaflet, grotec.co.uk. Always read the label on the bottle you own. Growth Technology is a trade mark of its owner.