Soil Nutrients UK | Feeding Plan for Soil Growers

Feeding Monkey Nutrients in soil

Dosing notes

Soil is a living mix that holds water and nutrients and releases them gradually. That buffer makes it the most forgiving medium to learn in, but it also means every bag starts with its own fertility. Treat the Monkey chart as your framework and let your plants show you where to sit within its ranges.

Soil dosing notes
Topic	In soil
Starting point	Existing fertility depends on your soil mix. Begin with the chart and adjust within its ranges as the plants respond.
Mag Cal	Only needed with soft or RO water: 1–2 ml per litre. Skip it during the flush week.
Base feeds and boosters	Measure the A and B parts on their own and in matching amounts; each chart figure is per part. Pick PK 9/18 or Resin as your flowering programme: see the feed chart.
Root Shoot	Its chart window runs from veg week 1 to bloom week 5.
Ultra Zyme	1–2 ml per litre (10–20 ml / 10 L) with your soil feeds through the whole life cycle.
Mixing order	Pour Stress into the water before anything else and stir it in well.

Common problems in soil

General guidance rather than Monkey chart figures. Soil reacts slowly, so give each change time to show.

Symptom: Brown tips or burnt leaf edges soon after potting into a fresh bag.
Likely cause: A pre-fertilised mix already carries nutrients, so a full feed on top can be too much.
What to check: What the bag contains, your EC and where you are within the chart range.
Symptom: Wilting while the soil is wet, yellowing leaves and stalled growth.
Likely cause: Overwatering and a waterlogged mix that leaves the roots without air.
What to check: That pots drain freely and the soil dries back between waterings.
Symptom: Calcium or magnesium symptoms when you water with soft or RO water.
Likely cause: Soft and RO water carry less calcium and magnesium than hard water.
What to check: Your supplier’s water-quality information and whether Mag Cal belongs in your feed.

Soil FAQ

When should I start feeding in soil?: The feed chart starts in veg week 1. Because a soil mix brings its own fertility, watch your plants and adjust within the chart ranges.
Do soil growers need Mag Cal?: Only with soft or RO water. Hard water generally contains more calcium and magnesium.
Can I use the same feeds in soil as in coco?: Yes. Grow A+B and Bloom A+B are designed for coco, soil and hydro, and the boosters follow the same timetable in every medium.

The Monkey starter kit

Always add Stress first and mix thoroughly before adding the rest of the nutrients.

Shoots

Grow A+B

Two-part base nutrient. Strong starts. Serious growth.

Use with: Bloom A+B · Root Shoot

1 L5 L10 L25 L

Grow A: Total nitrogen (N) 0.6% · Calcium oxide (CaO) 2.5% — soluble in water · Magnesium oxide (MgO) 0.6% — soluble in water; Grow B: Total nitrogen (N) 0.93 · Phosphorus pentoxide (P2O5) 4.4 (1.9% P) — soluble in water · Potassium oxide (K2O) 6.1 (5.1% K) — soluble in water · Iron (Fe), EDTA-chelated 0.04% · Manganese (Mn), EDTA-chelated 0.01% · Zinc (Zn), EDTA-chelated 0.006% · Boron (B), EDTA-chelated 0.005%View product

Fruits

Bloom A+B

Two-part base nutrient built for the flowering finish.

Use with: Grow A+B · Root Shoot

1 L5 L10 L25 L

Bloom A: Total nitrogen (N) 2.7% · Potassium (K2O) 1.5% — soluble in water · Calcium oxide (CaO) 2.5% — soluble in water · Magnesium oxide (MgO) 0.7% — soluble in water; Bloom B: Total nitrogen (N) 0.93 · Phosphorus pentoxide (P2O5) 4.4 (1.9% P) — soluble in water · Potassium oxide (K2O) 6.1 (5.1% K) — soluble in water · Iron (Fe), EDTA-chelated 0.04% · Manganese (Mn), EDTA-chelated 0.01% · Zinc (Zn), EDTA-chelated 0.006% · Boron (B), EDTA-chelated 0.005%View product

Roots

Root Shoot

Root booster. Great grows start underground.

Use with: Grow A+B · Bloom A+B

20 L

Root Shoot: Total nitrogen (N) 3% — soluble in water · Phosphorus pentoxide (P2O5) 8% — soluble in water · Potassium oxide (K2O) 10% — soluble in water · Arctic sea kelp (natural seaweed extracts) 1% — soluble in water · Humic and fulvic acid 1% — soluble in water · Multivitamins including B1 and B5 1% — soluble in waterView product

Feed chart for this medium Soil Find a Stockist