Terra Aquatica Soil Feed Chart – TriPart Doses
Terra Aquatica's own published TriPart rates for soil and potting mixes. Same three bottles as the hydro chart, at noticeably lower rates. Millilitres per litre of water.
- All dosesper LITRE
- pH6.0 – 7.0
- Base feed0.2–2.1ml of each part
- RipeningFinalPart 4ml
Terra Aquatica publish this schedule by growth stage rather than by week. The chart sets those stages out week by week, with their dose repeated in every week a stage covers.
Getting it right
- Do not use the hydro chart in soil. The rates above are markedly lower, and a potting mix already carries a charge of its own.
- Never premix the concentrates. Each part goes into the water separately, or they crystallise. Rinse the jug between parts.
- Match the Micro to your water. Over 70 mg/L calcium takes the hard water version; RO and rainwater take the soft water one.
- Flower 7 and Flower 8 are FinalPart on its own, at up to 4ml per litre in soil — Terra Aquatica's ripening period, about ten days.
- Soil runs a higher pH than hydro — 6.0 to 7.0 rather than 5.5 to 6.5.
Everything on the chart
TriPart Micro, soft water
From £11.45
0.2–1.5ml, Cutting 1 to Flower 6
TriPart Micro, hard water
From £12.95
0.2–1.5ml, Cutting 1 to Flower 6
TriPart Grow
From £6.49
0.2–1.5ml, Cutting 1 to Flower 6
TriPart Bloom
From £6.49
0.2–2.1ml, Cutting 1 to Flower 6
FinalPart
From £7.49
4ml, Flower 7–8 only
Common questions
Why are the soil numbers so much lower?
A potting mix already holds a nutrient charge and buffers what you add. Hydroponics and coco hold almost none, so the feed has to carry everything.
Can I use the hydro chart if I water by hand?
Not in soil — the medium is the variable, not the watering method. Use the soil rates above.
Is this the old GHE Flora series?
Yes. General Hydroponics Europe became Terra Aquatica, and Flora Micro, Grow and Bloom became TriPart Micro, Grow and Bloom.
Shop the full Terra Aquatica range
Figures as published by Terra Aquatica in their Application Tables, terraaquatica.com. Always read the label on the bottle you own. Terra Aquatica is a trade mark of its owner.