Discovery

31 May 2025

Mastering pH Level: Mills Nutrients x The Bulldog Seeds

Mills and The Bulldog Seeds are back with another growing essential: mastering pH levels. 

Getting the pH level of any growing medium is just as crucial as getting the proper nutrients, lighting, and airflow. pH determines how well your plants take on board and absorb nutrients. Too low or too high, your plants will lose key nutrients, leading to deficiencies and stunted growth. 

The Mills Master Grower method ensures optimal nutrient uptake by varying pH levels rather than sticking to one fixed value. Here’s how to do it right in soil, coco, and hydroponic setups.

pH for Growing in Soil (Optimal Range: 6.0 – 6.5)

Why Vary pH when growing cannabis?

  • Macro and micronutrients absorb best at different pH levels.
  • A slight variation prevents nutrient lockout and buildup and helps get the most from your plants.

The Master Grower pH Cycle for Soil

  1.  Water with nutrients at pH 6.0
  2.  Next watering: Only water (no nutrients) at pH 6.3
  3. Then, feed with nutrients at pH 6.5
  4. Followed by another watering (no nutrients) at pH 6.3

Repeat this cycle throughout the entire grow

Master Grow Bonus Tip: Water plants regularly without nutrients to prevent the soil’s buildup of salts and minerals.

pH for Growing in Coco & Hydroponics (Optimal Range: 5.5 – 6.0)

Why adjust pH Once a Week when growing cannabis?

Coco and hydro growers typically keep pH between 5.5 and 6.0, but raising pH to 6.5 once a week helps unlock a broader range of nutrients.

The Master Grower pH Cycle for Coco & Hydro

  1. Water with nutrients at pH 5.5
  2. Next watering: Only water at pH 5.8
  3. Then, feed with nutrients at pH 6.5 (once a week to maximise absorption)
  4. Followed by another watering (no nutrients) at pH 5.8

Repeat this cycle throughout the entire grow

Does Water Temperature Matter?

Yes, like with the general temperature of your growing environment, if you get the temperature of the water you use wrong, it can cause issues with plant health. 

  • Do not use lukewarm water—it doesn’t rain lukewarm outside.
  • Ideal water temperature: 20°C is ideal for optimal root health and plant oxygen levels.

Mills Nutrients Master Grower x Bulldog Seeds

The Mills Master Grow tips are based on years of experience and expertise. Follow this guide for maximum nutrient uptake and grow stronger, healthier plants. Whether in soil, coco or hydro, getting the pH level right is vital to getting the most from your harvest.

Master pH levels. Master your grow. Grow your legend with Mills x Bulldog Seeds.

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