pH Raise Kit

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Keep your Tower Garden nutrient solution in the proper pH range with the Tower Garden pH Raise Kit (pH+). Maintaining the correct pH helps your plants absorb the nutrients they need from the water.

For Tower Garden, the nutrient solution should generally be maintained between pH 5.5 and 6.5. Use the included pH test kit to check your water and add pH+ when the pH needs to be raised.

A pH kit for raising and lowering pH is included with the purchase of a Tower Garden FLEX or HOME. Replacement kits can be purchased when needed.

Need to lower your pH instead? Shop the Tower Garden pH Lower Kit (pH−). Or, if you need both, shop the complete Tower Garden pH Raise & Lower Kit.

Need help testing and adjusting your water? Read our Tower Garden Water Guide.