Dutch Pro Hydro and Coco Feed Chart – A&B Doses
Dutch Pro's own published Original Grow and Bloom Hydro/Coco A&B schedule. Week by week, in millilitres per 100 litres of water.
- All dosesper 100 litres
- pH5.8
- Base feedA&B, 250-350ml 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 dose per 100 litres, and that catches people out. Most brands print per litre or per 10 litres. Dutch Pro do not. Divide every figure by ten before it goes in a 10-litre watering can: 250-350ml of base feed becomes 25 to 35ml, Multi Total's 100ml becomes 10ml, and Keep it Clean's 10ml becomes 1ml. That last one needs a syringe.
- 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 gives one set of doses that covers both bottles. Buy the bottle matched to your tap water, dose 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.
- The base feed is a range, not a fixed number. Start at the lower figure and work up while watching the EC. Across the run Dutch Pro target EC 1.8 to 2.3.
- 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 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.
- 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 at 5.8. Check it after everything is mixed — the boosters move it.
Everything on the chart
Original Grow Hydro/Coco A&B
From £15.95
250-350ml, Grow 1 and Grow 2
Original Bloom Hydro/Coco A&B
From £13.45
250-350ml, 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 250-350ml per 100 litres is 25 to 35ml of Part A and the same again of Part B in a 10-litre can. Multi Total's 100ml is 10ml. Keep it Clean's 10ml is 1ml, which is a syringe job.
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 prints one set of doses covering both bottles, so there is no separate hard-water column here. Choose the bottle that matches your tap water, feed at the figures shown, and let the EC be your check.
Can I use the Soil A&B bottles in coco?
They are a different product. Dutch Pro make Original Grow and Bloom in a Soil version and a Hydro/Coco version, with their own chart and their own rates. Use the Hydro/Coco bottles for coco, rockwool and recirculating systems.
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 tank, 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 Hydro/Coco feed chart, dutchpro.com. Always read the label on the bottle you own. Dutch Pro is a trade mark of its owner.