Change pH Levels in Growing Soil
To decrease the pH level in the soil you will want to add a bit of compost leaves, peat moss, or cottonseed. To increase the pH level in the soil you will want to add a bit of hardwood ashes or egg shells. You could also use hydrated lime to increase the pH level in your growing soil. If you are growing the marijuana plants in containers then don’t add anything above an eight of a cup of hydrated lime for each cubic foot of growing soil. Afterwards you’ll mix hot water in with it and then add it into the growing soil.
Follow the Instructions
While growing your dope plants outdoors you should always follow the instructions given with the product. The results may take a few days to show up after you put anything in to raise or lower the pH levels in the soil. Only adjust the pH level by up to 0.1 every day so you don’t harm the soil or your marijuana plants.
Make sure that you keep your marijuana plants around pH levels that are within the recommended range. Depending on how your dope plants are growing (indoor, hydroponic, outdoor) the pH level that should be set will vary.