Dutch Pro Soil Feed Chart – Original A&B Doses
Dutch Pro's own published Original Grow and Bloom Soil A&B schedule. Week by week, in millilitres per 100 litres of water.
- All dosesper 100 litres
- pH5.8 – 6.5
- Base feedA&B, 200-300ml per 100 litres
Every figure is millilitres per 100 litres of water. Divide by ten for a 10-litre watering can and by twenty for a 5-litre can. A dash means the bottle is not used that week.
Getting it right
- Dutch Pro publish per 100 litres, and almost nobody mixes 100 litres. Divide every figure by ten before it goes into a 10-litre watering can. The base feed at 200-300ml becomes 20 to 30ml, Take Root's 100ml becomes 10ml, and Keep it Clean's 10ml becomes 1ml. For a 5-litre can, halve those again.
- The soil bottles run lower than the hydro and coco ones. Original Grow and Bloom Soil are dosed at 200-300ml per 100 litres here. The Hydro/Coco versions are dosed at 250-350ml on their own chart. Use the chart that matches the bottle in your hand.
- Hard water and soft water use the same figures on this chart. Dutch Pro sell a hard-water and a soft-water version of Original Grow and Original Bloom. The chart we hold prints one set of doses covering both bottles. Buy the version that matches your tap water, feed at the figure shown, then check the EC. We do not hold separate hard-water and soft-water numbers.
- Part A goes into the water first, then Part B. Never pour one concentrate straight into the other.
- Start at the bottom of the range. The base feed is printed as a minimum and a maximum, not a single number. Begin at 200ml per 100 litres and work up towards 300ml while checking the run-off against the published EC target of 1.7 to 2.0.
- Multi Total runs every other week. 200ml at Grow 1, then 100ml at Flower 1, Flower 3, Flower 5 and Flower 7, and nothing in the weeks between.
- Leaf Green is a foliar spray, not a tank additive. The chart marks it "1 x week" rather than a volume, and it stops after Flower 3.
- Explode steps up in pairs. 50ml at Flower 3 and Flower 4, 100ml at Flower 5 and Flower 6, 150ml at Flower 7 and Flower 8, then nothing at Flower 9.
- Flower 9 is water and Keep it Clean only. Every other bottle stops. Keep it Clean stays at 10ml every week of the chart, Flower 9 included.
- Light hours are part of the chart. 18 hours a day through Grow 1 and Grow 2, 12 hours from Flower 1 onwards.
- Hold the pH between 5.8 and 6.5. Soil takes a wider band than hydro does. Check it after everything is mixed, not before.
Everything on the chart
Original Grow Soil A&B
From £12.75
200-300ml, Grow 1 and Grow 2
Original Bloom Soil A&B
From £12.75
200-300ml, Flower 1 to Flower 8
Multi Total
From £8.49
200ml, then 100ml every other week
Take Root
From £17.49
100ml, Grow 1 to Flower 2
Leaf Green
From £6.99
sprayed once a week, up to Flower 3
Explode
From £29.49
50ml to 150ml, Flower 3 to Flower 8
Keep it Clean
From £9.49
10ml, every week including Flower 9
Common questions
How much goes in a 10-litre watering can?
A tenth of the figure on the chart. Base feed at 200-300ml per 100 litres is 20 to 30ml of Part A and the same again of Part B. Multi Total's 100ml is 10ml. Keep it Clean's 10ml is 1ml, so use a syringe for that one.
I have hard water. Is there a different set of numbers?
Dutch Pro sell a hard-water and a soft-water version of Original Grow and Original Bloom. The chart we hold gives one set of doses covering both bottles, so there is no separate hard-water column here. Pick the bottle matched to your tap water, feed at the figures shown, and use the EC as your check.
How is this different from the hydro and coco chart?
The base feed rate. Soil runs at 200-300ml per 100 litres and targets EC 1.7 to 2.0; the Dutch Pro hydro and coco chart runs at 250-350ml and targets EC 1.8 to 2.3. The additives and their weeks are the same on both.
What does "1 x week" mean for Leaf Green?
It is a ready-to-use foliar spray. The chart asks for one application a week rather than a volume in the can, from Grow 1 through to Flower 3.
Why is there no base feed in flower week 9?
Flower 9 is the last week on the chart and everything except Keep it Clean comes out. Keep it Clean stays at 10ml per 100 litres.
Figures as published by Dutch Pro on their own soil feed chart, dutchpro.com. Always read the label on the bottle you own. Dutch Pro is a trade mark of its owner.