Cannabis Nutrients for Flowering Stage Schedule: Week by Week
A practical cannabis nutrients for flowering stage schedule: NPK shifts, week by week feeding phases, pH targets, supplements, and common mistakes.
Quick Answer
For the best results, use a cannabis nutrients schedule that includes a full nutrient set at week 1, split into two parts at week 3, and a full set again at week 5.
Understanding the Importance of Nutrients in Cannabis
- Macronutrients: Nitrogen (N), Phosphorus (P), and Potassium (K) are critical for overall plant growth.
- Secondary Nutrients: Calcium (Ca), Magnesium (Mg), and Sulfur (S) support plant health.
- Microelements: Boron (B), Iron (Fe), Manganese (Mn), Zinc (Zn), Copper (Cu), and Molybdenum (Mo) are necessary in smaller amounts but crucial.
Creating an Effective Nutrients Schedule
Start with a full set of nutrients at the beginning of the flowering stage. This will ensure your plants get all the essential macronutrients.
cannabis nutrients organic vs synthetic feeding schedule
Splitting the Schedule
At week 3, switch to a feeding schedule that provides just half the nutrients. This helps prevent nutrient lockout and ensures that your plants absorb everything they need.
The Final Push
By the fifth week, reintroduce the full nutrient set. This will help your plants reach their peak health and potency just in time for harvest.