Crazy Hills Feed Chart
Crazy Hills is a fully organic four-bottle program with a microbial inoculant, on one chart with no grower levels to choose between. The chart below is Crazy Hills’ own schedule, with the doses week by week. Underneath it, our free calculator fits it to your pot size, plant count and cycle length, and works out exactly how much you need to buy.
The Crazy Hills feed chart
Per litre of water — millilitres for the liquids, grams for the powders. Veg here is four weeks and flower nine, which is the commonest UK cycle. If yours is longer or shorter, the calculator fits the same schedule to it rather than simply running out.
Swipe the chart sideways to see every week.
| Week | Upthrive | Élan | Spark | Kick Off | Prosper |
|---|---|---|---|---|---|
| Veg week 1 | 1.0 | 1.0 | 0.5 | 1.0 | – |
| Veg week 2 | 1.0 | 1.0 | 1.0 | 0.5 | – |
| Veg week 3 | 1.5 | 1.5 | 1.0 | 0.5 | – |
| Veg week 4 | 1.5 | 2.0 | 1.5 | 0.5 | 0.5 |
| Flower week 1 | 2.0 | 2.5 | 2.0 | 0.5 | 1.0 |
| Flower week 2 | 2.0 | 2.5 | 2.5 | 0.5 | 2.0 |
| Flower week 3 | 1.5 | 3.0 | 3.0 | 0.5 | 3.0 |
| Flower week 4 | 1.0 | 3.5 | 4.0 | 0.5 | 3.0 |
| Flower week 5 | 1.0 | 4.0 | 4.0 | 0.5 | 4.0 |
| Flower week 6 | 1.0 | 5.0 | 5.0 | – | 4.0 |
| Flower week 7 | – | 3.0 | 3.0 | – | 3.0 |
| Flower week 8 | – | – | – | – | – |
| Flower week 9 (flush) | – | – | – | – | – |
Target pH 5.8 to 6.2 in veg and 6.0 to 6.5 in bloom. Eight bloom weeks as printed, with an optional two-week finish on the end.
One of these five is not a feed
Kick Off is a microbial root inoculant, not a nutrient. It is the only row on the chart that does not ramp: 1 g per litre in the first week and 0.5 g per litre from then to the end of bloom week 6, flat the whole way, because you are topping up a population rather than feeding a plant that keeps getting bigger.
It is also the one row here you could reasonably run without. Everything else on this chart is doing a job the plant cannot do without. Kick Off is doing a job the medium might already be doing for you, so it is a tick box in the calculator rather than a fixed line.
Why there is no target EC on this chart
Crazy Hills do not publish a target EC, so this chart does not invent one. Every other brand on this site gets an EC row because they print one. A made-up number on an organic feed would be worse than a blank. The reason they leave it out is that a meter reads dissolved salts, and a good part of an organic program is not in solution as salt at the moment you measure it, so the figure under-reads what the plant is actually getting. Read the plant and the runoff instead.
What a full Crazy Hills run costs
For a common UK setup, nine plants in 3 gallon Quick Fill coco bags, four weeks of veg and nine of flower, the whole cycle comes to about £350 across 5 products, mixing roughly 1,500 litres of feed.
The single biggest line on that bill is Crazy Hills Élan at around £144. That is worth knowing before you order, because it is usually the additives rather than the base that decide what a run costs.
The calculator prices your actual grow rather than this example, and prices the other fifteen brands alongside it, so you can see what you are paying for.
What you need for a Crazy Hills run
- Crazy Hills Upthrive
- Crazy Hills Élan
- Crazy Hills Spark
- Crazy Hills Kick Off (optional)
- Crazy Hills Prosper
Or let the calculator work out the sizes and quantities for your own grow and put the lot in your basket in one click.
Open the Crazy Hills calculator →
The Hydro Bros is not affiliated with, endorsed by or approved by Crazy Hills. The figures above are transcribed from Crazy Hills’ own published feed chart. They are a starting point rather than a prescription: read your own runoff and your own meter, and adjust to your room.
