Best Nutrients for Cannabis in Canada
The right nutrients can dramatically improve your yields and bud quality. Compare the best cannabis nutrient brands available to Canadian growers and learn proper feeding techniques.
N - Nitrogen
Essential for vegetative growth, leaf development, and chlorophyll production.
P - Phosphorus
Critical for root development, energy transfer, and flower/bud production.
K - Potassium
Regulates water uptake, enzyme activation, and overall plant health.
Top Nutrient Brands for Canadian Growers
Advanced Nutrients
Price: $$$
Best for: Maximum yields, experienced growers
Pros
- pH Perfect technology
- Complete feeding systems
- Proven results
Cons
- - Expensive
- - Can be complex for beginners
Popular Products
General Hydroponics
Price: $$
Best for: Hydroponic and soil grows
Pros
- Affordable
- Widely available in Canada
- Versatile
Cons
- - Requires pH management
- - Multiple bottles needed
Popular Products
Gaia Green
Price: $$
Best for: Organic soil grows, Canadian-made
Pros
- Canadian company
- Slow-release
- Organic certified
Cons
- - Slower results
- - Not for hydroponics
Popular Products
Remo Nutrients
Price: $$
Best for: Canadian growers wanting local brand
Pros
- Canadian company
- Complete system
- Good support
Cons
- - Less widely known
- - Multiple products needed
Popular Products
Basic Feeding Schedule
This general schedule works for most photoperiod strains. Autoflowers have a compressed schedule - reduce timeframes and use lighter doses.
| Stage | Weeks | N | P | K | Notes |
|---|---|---|---|---|---|
| Seedling | 1-2 | Low | Low | Low | Plain water or 1/4 strength |
| Early Veg | 3-4 | Medium | Low | Medium | Start at 1/2 strength |
| Late Veg | 5-6 | High | Medium | Medium | Full strength, focus on N |
| Transition | 7 | Medium | Medium | Medium | Begin switching to bloom |
| Early Flower | 8-10 | Low | High | High | Switch to bloom nutrients |
| Mid Flower | 11-13 | Low | High | High | Peak feeding, add boosters |
| Late Flower | 14-15 | None | Medium | Medium | Reduce nutrients |
| Flush | 16+ | None | None | None | Plain water only |
- Start low, go slow: Begin at 1/4-1/2 recommended strength and increase gradually.
- Check pH: Keep pH between 6.0-7.0 for soil, 5.5-6.5 for hydro.
- Watch your plants: Yellow leaves, burnt tips, and slow growth indicate nutrient issues.
- Flush before harvest: Use plain water for the last 1-2 weeks for better taste.
- Don't overfeed: More nutrients doesn't mean bigger yields - it often causes problems.
- Consider CalMag: Most Canadian tap water is soft and benefits from calcium/magnesium supplements.
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