Botanicare Feeding Schedule

About Botanicare

Botanicare sits in a useful middle ground — not a hardline synthetic salt program, not a strictly organic one. Pure Blend Pro is the product most growers know it for, and it is popular precisely because it is hard to burn plants with: a molasses and kelp base that behaves gently in soil and coco while still feeding hard enough to finish a crop.

The rest of the range is the practical stuff a room actually runs through — Cal-Mag Plus, Hydroguard for root zone biology, Sweet as a flavour and carbohydrate additive, Silica Blast, Clearex for flushing. Botanicare also makes trays, reservoirs and rockwool, so a lot of shops end up carrying it for the hardware as much as the bottles.

The feed chart

These are Botanicare's own published figures, set out so you can read them on your phone in the grow room instead of pinching around a PDF. All three sheets share the same 12-week structure — a seedling/clone week, three weeks of vegetative growth, then eight weeks split into Bloom Transition, Flowering/Fruiting and a final Ripening week — and each comes in a Standard and an Expert recipe. The Expert recipe adds Botanicare's supporting additives on top of the same Grow/Bloom base.

Pure Blend Pro

Pure Blend Pro Grow & Bloom is the liquid two-part for soilless mixes, coco and hydro.

Pure Blend Pro — Standard Recipe — All amounts in mL per gallon
Feed Seedling Veg Bloom Transition Flowering Ripen
Week 1 1 2 3 1 2 3 1 2 3 4 1
Growth stage Seedling Veg Veg Veg Bloom Transition Bloom Transition Bloom Transition Flowering Flowering Flowering Flowering Ripening
PBPro Grow 7 15 18 20 0 0 0 0 0 0 0 0
PBPro Bloom 0 0 0 0 25 25 27 30 30 30 25 20
Sweet 2 6 6 6 8 8 8 6 6 4 4 0
Pure Blend Pro — Expert Recipe — All amounts in mL per gallon
Feed Seedling Veg Bloom Transition Flowering Ripen
Week 1 1 2 3 1 2 3 1 2 3 4 1
Growth stage Seedling Veg Veg Veg Bloom Transition Bloom Transition Bloom Transition Flowering Flowering Flowering Flowering Ripening
PBPro Grow 7 8-12 10-14 12-16 0 0 0 0 0 0 0 0
PBPro Bloom 0 0 0 0 15-18 15-18 15-18 15-18 15-18 15-18 15-18 8-12
Rhizo Blast 2 2 2 2 2 2 2 0 0 0 0 0
Liquid Karma 2 8 8 8 4 4 4 4 4 4 4 0
Cal-Mag Plus 2 5 5 5 5 5 5 5 5 3 3 3
Silica Blast 2 4 4 4 4 4 4 4 4 4 4 0
Sweet 2 6 6 6 8 8 8 6 6 4 4 0
Hydroplex 0 0 0 0 0 0 2 3 4 4 2 0

Pure Blend Pro Soil

The soil-specific version of Pure Blend Pro — same base idea, tuned for a soil buffer, so the bloom rates below differ from the version above.

Pure Blend Pro Soil — Standard Recipe — All amounts in mL per gallon
Feed Seedling Veg Bloom Transition Flowering Ripen
Week 1 1 2 3 1 2 3 1 2 3 4 1
Growth stage Seedling Veg Veg Veg Bloom Transition Bloom Transition Bloom Transition Flowering Flowering Flowering Flowering Ripening
PBPro Grow 7 15 18 20 0 0 0 0 0 0 0 0
PBPro Bloom Soil 0 0 0 0 20 20 22 25 25 25 20 15
Pure Blend Pro Soil — Expert Recipe — All amounts in mL per gallon
Feed Seedling Veg Bloom Transition Flowering Ripen
Week 1 1 2 3 1 2 3 1 2 3 4 1
Growth stage Seedling Veg Veg Veg Bloom Transition Bloom Transition Bloom Transition Flowering Flowering Flowering Flowering Ripening
PBPro Grow 7 8-12 10-14 12-16 0 0 0 0 0 0 0 0
PBPro Bloom Soil 0 0 0 0 15-18 15-18 15-18 15-18 15-18 15-18 15-18 8-12
Rhizo Blast 2 2 2 2 2 2 2 0 0 0 0 0
Liquid Karma 2 8 8 8 4 4 4 4 4 4 4 0
Cal-Mag Plus 2 5 5 5 5 5 5 5 5 3 3 3
Silica Blast 2 4 4 4 4 4 4 4 4 4 4 0
Sweet 0 0 0 0 8 8 8 6 6 4 4 0
Hydroplex 0 0 0 0 0 0 2 3 4 4 2 0

CNS17

CNS17 is Botanicare's synthetic two-part alternative to Pure Blend Pro, for growers who want a mineral salt base instead of the molasses-and-kelp Pure Blend line.

CNS17 — Standard Recipe — All amounts in mL per gallon
Feed Seedling Veg Bloom Transition Flowering Ripen
Week 1 1 2 3 1 2 3 1 2 3 4 1
Growth stage Seedling Veg Veg Veg Bloom Transition Bloom Transition Bloom Transition Flowering Flowering Flowering Flowering Ripening
CNS17 Grow 7 17 19 20 0 0 0 0 0 0 0 0
CNS17 Bloom 0 0 0 0 20 20 22 24 25 25 0 0
CNS17 Ripe 0 0 0 0 0 0 0 0 0 0 27 22
CNS17 — Expert Recipe — All amounts in mL per gallon
Feed Seedling Veg Bloom Transition Flowering Ripen
Week 1 1 2 3 1 2 3 1 2 3 4 1
Growth stage Seedling Veg Veg Veg Bloom Transition Bloom Transition Bloom Transition Flowering Flowering Flowering Flowering Ripening
CNS17 Grow 7 12 14 14 0 0 0 0 0 0 0 0
CNS17 Bloom 0 0 0 0 13 13 14 15 15 15 0 0
CNS17 Ripe 0 0 0 0 0 0 0 0 0 0 17 14
Rhizo Blast 2 2 2 2 0 0 0 0 0 0 0 0
Pure Blend Tea 1 2 3 5 5 5 5 5 5 5 5 5
Silica Blast 2 4 4 4 4 4 4 4 4 4 4 4
Hydroguard 2 2 2 2 2 2 2 2 2 2 2 2

Botanicare's own charts print “0” for a week a product is not used, rather than leaving the cell blank, so a literal 0 above is what the manufacturer's sheet shows, not a missing figure.

Figures as published by Botanicare (documents Botanicare_PureBlendProGrowBloomFeedChart_250428ae, PBProSoilFeedSheet and CNS17FeedSheet). Feeding charts are recommendations only. Adjustments may be needed based on environmental conditions, your grow structure, and any additional products you run. Actual results vary.

Download the original charts

All three are Botanicare's own files, hosted here so the links do not rot:

What we stock

Pure Blend Pro, Cal-Mag Plus, Hydroguard, Sweet, Silica Blast and Clearex, plus the tray and reservoir hardware.

Shop Botanicare

Everything on this schedule, stocked at Milford and Webster.

View all 67 Botanicare products →