Emerald Harvest Cali Pro Feed Chart – A+B per Litre
Emerald Harvest's own published Cali Pro two-part schedule. Week by week, in millilitres per one litre of water.
- All dosesper 1 litre
- pH5.8 – 6.3
- Base feedGrow A+B, then Bloom A+B
Every figure is millilitres per one litre of water, not per ten. A 10-litre watering can takes ten times what you see here — Bloom A at 1.5ml per litre is 15ml in a 10-litre can, with the same again of Bloom B.
Getting it right
- This is the two-part range. If your bottles read Cali Pro Grow A, Grow B, Bloom A and Bloom B, this is your chart. If they read Grow, Micro and Bloom, you want the Emerald Harvest 3-Part feed chart instead. The two are different base ranges, not one range for two growing media.
- Grow A and B run through Flower 1. This is the part people get wrong. Grow does not stop when the lights change. Both bottles go in at 0.5ml at Grow 1, 0.75ml at Grow 2, 1ml at Grow 3, then 1.25ml for Grow 4 and Flower 1. Flower 1 is a transition week and you are still feeding Grow.
- Bloom A and B start at Flower 2. 1.25ml each at Flower 2 and 3, 1.5ml each from Flower 4 to Flower 8, then 0.25ml each at Flower 9. The week Bloom starts is the week Grow stops — they never run together.
- A and B always go in at the same dose. Whatever the chart says, that figure is for A and the same again for B. They are two halves of one feed.
- Never premix the concentrates. Emerald Harvest are firm about this. Add Cali Pro A to fresh water first, stir it in, then add Cali Pro B. Pour A and B into each other neat and you get a sludge that never redissolves.
- Emerald Goddess starts at Grow 3. 1.5ml a litre from Grow 3 to Flower 1, 2ml at Flower 2 and 3, 2.5ml from Flower 4 to Flower 7, then 1.25ml at Flower 8.
- King Kola is flowering only. 1ml at Flower 1, 2ml at Flower 2 and 3, 3ml at Flower 4 and 5, 2ml at Flower 6 and 7, 1ml at Flower 8.
- Honey Chome carries on to the last week. 1ml from Grow 3 to Flower 1, 2ml from Flower 2 to Flower 7, then 1.5ml at Flower 8 and Flower 9.
- Root Wizard is two doses, not a weekly feed. 3.75ml a litre at Grow 3, and 3.75ml again at Flower 2. Nothing in any other week.
- Flower 9 is the wind-down. Bloom A and B drop to 0.25ml each and Honey Chome to 1.5ml. Emerald Goddess, King Kola and Root Wizard stop.
- Keep pH between 5.8 and 6.3. One range for soil, coco and hydroponics, so the pH window is the same whatever you grow in.
Everything on the chart

Cali Pro Grow and Bloom
From £33.49
Grow A+B 0.5–1.25ml, Bloom A+B 0.25–1.5ml

Emerald Goddess
From £39.49
1.25–2.5ml, Grow 3 to Flower 8

King Kola
From £39.49
1–3ml, Flower 1 to Flower 8

Honey Chome
From £29.49
1–2ml, Grow 3 to Flower 9

Root Wizard
From £74.49
3.75ml, Grow 3 and Flower 2 only
Common questions
Is this per litre or per 10 litres?
Per one litre. Bloom A at 1.5ml means 1.5ml in a 1-litre jug, or 15ml in a 10-litre watering can — and the same again of Bloom B.
When exactly do I swap Grow for Bloom?
At the end of Flower 1. Grow A and B run all the way through Flower 1 at 1.25ml each, then stop. Bloom A and B start at Flower 2 at 1.25ml each. Nothing overlaps.
How do I know if I own Cali Pro or the 3-Part?
Read the bottle. Four bottles marked Cali Pro Grow A, Grow B, Bloom A and Bloom B is this chart. Three bottles marked Grow, Micro and Bloom is the Emerald Harvest 3-Part feed chart. They are two different base feeds, not one feed for two growing media.
Can I mix A and B together before they go in?
No. Emerald Harvest print the warning on every label: never premix concentrated nutrients. Add A to fresh water, stir, then add B.
Why does the chart restart at 1 when flowering starts?
Emerald Harvest write their own sheet in stages — Seedlings and Cuttings, Transplants, Early Vegetative, Late Vegetative, then Week 1 to Week 9. Growers count flowering from the flip, so ours renumbers those as Grow 1 to Grow 4 and Flower 1 to Flower 9. The doses are unchanged.
Does this work in soil, coco and hydroponics?
Yes. It is one schedule for all growing media, at pH 5.8 to 6.3.
Shop the full Emerald Harvest range
Figures as published by Emerald Harvest on their own feed chart, emeraldharvest.co. Always read the label on the bottle you own. Emerald Harvest is a trade mark of its owner.
