Coco coir is a hydroponic-style medium, so the plant gets almost nothing from the substrate itself — everything arrives in the water. That makes a coco coir cannabis feeding schedule less about guesswork and more about consistency: feed every watering, keep pH in range, and step EC up with each growth stage. Get those three habits right and coco rewards you with fast growth and precise control.
Key Features of a Coco Coir Feeding Schedule
- Feed on every watering — coco holds almost no built-in nutrition
- Hold pH between 5.8 and 6.2 so nutrients stay available
- Start around 0.8–1.0 EC in early veg and finish near 1.8–2.2 EC at peak bloom
- Include a calcium-magnesium supplement at every feed
- Water to 10–20% runoff to push out leftover salts
- Once daily in veg, up to twice daily in heavy flower
- Plain pH-adjusted water for the final week before harvest
- Steer strength by runoff EC readings rather than by the calendar
What pH and EC Should You Run in Coco?
Aim for pH 5.8–6.2 and measure runoff EC weekly. If runoff climbs well above your input, feed lighter or add a plain-water flush day; if it drops, the plant is eating faster than you are feeding.
How Often Should You Feed Cannabis in Coco Coir?
Every time you water. Coco is treated like drain-to-waste hydro, so a mild nutrient solution at each irrigation beats a strong feed followed by plain water.
coco coir vs peat moss for cannabis
Materials and Specs
Buffered coco coir blended 70/30 with perlite gives the air-to-water balance this schedule assumes. Rinse and pre-charge new coir with a light cal-mag solution before transplanting, use 3–5 gallon pots for photos or 2–3 gallon pots for autos, and keep a drain tray under each plant so runoff never sits in the root zone. Hand watering works fine; drip irrigation on a timer makes twice-daily flower feeds far easier.
How Does Shipping and Returns Work?
Orders ship discreetly in plain packaging within a few business days, and tracking is emailed as soon as the label is created. Unopened coir and nutrient products can be returned within the stated window if something arrives damaged or incorrect.