GO 12/12 – Field Marshal
GO 12/12 – Field Marshal
GO 12/12 – High-Phosphorus Flowering Starter, NPK 0-49-32
Many of our favourite flowering plants keep an eye on the calendar. Poinsettias, chrysanthemums, Christmas cacti and kalanchoes only start to bloom once the days shorten to around twelve hours, which is where Field Marshal GO 12/12 gets its name. The first few weeks after a plant switches from leaves to flowers are when it decides how many flowers and fruits it will try to carry, and that decision is made with phosphorus.
GO 12/12 is a highly soluble powder with an NPK of 0-49-32: no nitrogen to encourage more leafy growth, and a high ratio of phosphorus to potassium for the early flowering stage. Field Marshal's aim is a quicker, cleaner start to flowering, which gives plants more time to fill out their flowers and fruit afterwards.
Perfect For
Tomatoes, chillies and peppers as the first trusses form; strawberries; short-day flowering houseplants such as poinsettias, chrysanthemums, kalanchoes and Christmas cacti; and any soil, coco or hydroponic grower wanting a strong start to the flowering season.
Key Benefits
- High phosphorus-to-potassium ratio for the first weeks of flowering
- Nitrogen-free, so it doesn't push extra leafy growth
- Fully soluble powder that dissolves cleanly
- Concentrated: a 40g tub makes 100 litres of feed at the coco and hydro rate
How to Use
Hydro and coco: dissolve 0.4g per litre of nutrient solution. Soil: dissolve 0.2g per litre. Weigh carefully on a gram scale, and dissolve in a little warm water before adding to your watering can or reservoir.
Use for the first three weeks of flowering only. After that, Field Marshal recommend switching to a PK additive with a little less phosphorus and a little more potassium for the rest of the flowering period.
Feeding Schedule
From the official Field Marshal feed charts, in grams per litre:
| Stage | Coco & hydro | Soil |
|---|---|---|
| Propagation and leafy growth | – | – |
| Flowering, weeks 1–3 | 0.4g | 0.2g |
| Flowering, week 4 onwards | – (switch to a PK additive) | – (switch to a PK additive) |
🌿 Rose's Pro-Tip: 0.2g is a very small amount of powder, far too small to judge by eye. A cheap 0.01g jewellery scale is the best investment you'll make with this product: accurate dosing is what makes a concentrate like this so good value.
Safety Information
From the Field Marshal safety data sheet. WARNING: may intensify fire (oxidiser). Keep away from heat, flames, ignition sources and combustible materials such as paper, sawdust and other organic matter. Store in the closed original container in a cool, dry, well-ventilated place. Avoid creating dust. Keep out of reach of children.
Specifications
NPK 0-49-32. Fully soluble powder. Contains mono-potassium phosphate and magnesium sulphate.
Sizes
40g, 200g and 1.2kg.
Black Flag Horticulture Ltd, Coventry – UK stockists of Field Marshal.