What is the ideal pH range for most greenhouse crops?

The ideal pH range for most greenhouse crops is between 5.5 and 6.5. This range is significant because it provides optimal nutrient availability for a wide variety of plants typically grown in greenhouse settings.

In the 5.5 to 6.5 pH range, essential nutrients such as nitrogen, phosphorus, potassium, calcium, and magnesium are most readily absorbed by plant roots. Maintaining a slightly acidic to neutral pH level helps encourage healthy root development and overall plant vigor.

When the pH drops below 5.5, it can become too acidic, potentially leading to nutrient deficiencies or toxicities. Conversely, a pH level above 6.5 can result in nutrient lockout, where plants are unable to uptake certain minerals effectively, especially micronutrients. Therefore, maintaining the pH within this ideal range ensures that greenhouse crops can thrive and produce successfully.