My only goal here is to get
@Newguy420 best results. no offense to
@empty. There are lots of ways to grow and sometimes the details are important. But again Im not an expert I just googled it.
The ideal pH range for growing cannabis in coco coir is
5.5 to 6.5, with an optimal target range of
5.8 to 6.2.
- Optimal Range: Most growers aim for a pH between 5.8 and 6.2 for general growth.
- Allow for Fluctuation: It is beneficial to let the pH naturally drift up and down within the acceptable 5.5-6.5 range between waterings. This ensures that all essential nutrients, which are soluble at different pH levels, remain available for the plant to absorb.
- Nutrient Lockout: Maintaining a pH outside the optimal range for too long can lead to nutrient lockout, where the plant cannot absorb specific elements (e.g., calcium is less available below 5.8 pH, and phosphorus is less available above 6.4 pH).
- Monitoring: Regularly test the pH of both the nutrient solution going in and the runoff water coming out of the pot. The runoff pH should be close to the input pH; significant deviations can indicate underlying issues in the root zone.