White Widow is one of the most iconic cannabis strains in the world, known for its balanced effects, high resin production, and reliable growth patterns. Whether you're a beginner or an experienced grower, understanding the right nutrient schedule is key to unlocking this strain's full potential. In this post, we’ll explore a practical nutrient feeding chart tailored specifically for White Widow [[ https://whitewidowseeds.com | https://whitewidowseeds.com ]] helping you achieve healthy plants and bountiful yields.
Understanding White Widow’s Nutrient Needs
White Widow is a hybrid strain, typically leaning slightly toward the indica side. It grows well in both soil and hydroponic setups and is known for its resilience. However, like all cannabis strains, it thrives when given the right balance of macronutrients and micronutrients throughout its life cycle.
The three primary macronutrients are nitrogen (N), phosphorus (P), and potassium (K). During the vegetative stage, White Widow requires more nitrogen to support leafy growth. As the plant transitions into the flowering stage, phosphorus and potassium become more important to support bud development and resin production.
White Widow Nutrient Feeding Chart
Below is a general feeding chart for White Widow. Keep in mind that this is a guideline and should be adjusted based on your growing environment, medium, and specific nutrient brand.
Seedling Stage (Week 1–2)
- Light nutrient solution (25% strength)
- Nitrogen: Low
- Phosphorus: Low
- Potassium: Low
- pH: 5.8–6.2 (hydro), 6.0–6.5 (soil)
- Watering frequency: Every 2–3 days or when the top inch of soil is dry
Vegetative Stage (Week 3–6)
- Nitrogen: High
- Phosphorus: Medium
- Potassium: Medium
- pH: 5.8–6.2 (hydro), 6.0–6.5 (soil)
- Watering frequency: Every 2 days or as needed
- Optional: Add Cal-Mag supplement if using RO water or coco coir
Flowering Stage (Week 7–14)
Early Flower (Week 7–9)
- Nitrogen: Medium
- Phosphorus: High
- Potassium: High
- pH: 5.8–6.2 (hydro), 6.0–6.5 (soil)
- Watering frequency: Every 2–3 days
Mid Flower (Week 10–12)
- Nitrogen: Low
- Phosphorus: High
- Potassium: Very High
- Optional: Add bloom boosters or PK supplements
- Monitor for signs of nutrient burn or deficiency
Late Flower / Ripening (Week 13–14)
- Reduce nutrients gradually
- Begin flushing with plain water (pH-balanced) during the final 7–10 days
- This helps remove excess salts and improves flavor and smoothness
Tips for Feeding White Widow
1. Start with lower nutrient concentrations and increase gradually. White Widow can be sensitive to overfeeding, especially during early stages.
2. Always monitor pH levels. Incorrect pH can lock out nutrients even if they are present in the soil or solution.
3. Observe your plants. Yellowing leaves, burnt tips, or slow growth can indicate nutrient imbalances.
4. Use clean, filtered water if possible. Tap water with high chlorine or mineral content can affect nutrient uptake.
5. Keep a grow journal. Documenting your feeding schedule, pH levels, and plant responses can help you fine-tune your approach over time.
Conclusion
Feeding White Widow the right nutrients at the right time is essential for a successful grow. By following a structured feeding chart and paying close attention to your plants, you can enjoy a healthy crop with dense, resin-rich buds. Whether you're growing indoors or outdoors, in soil or hydro, this classic strain rewards careful cultivation with top-tier results.