The Perfect PH Value For Indoor Plants

October 25, 2021

When it comes to growing flowers and vegetables, you probably already know that the pH of the soil plays a big part in how well they grow. What you may not know is that all plants have a preferred pH range due to the plant’s specific nutrient needs. Of the 17 essential plant nutrients necessary for plant growth, 14 are obtained from the soil. The acidity or alkalinity of the soil determines whether the nutrients your specific plant needs are readily available for absorption.

What is pH?

Soil pH is a measure of the acidity or alkalinity of the soil. The scores range from 0 to 14, with 7 being neutral. Results between 0 and 7 indicate the soil is acidic, while results between 7 and 14 mean the soil is alkaline. pH values between 6.0 and 6.8 are ideal for medicinal plants. Because plant nutrients must dissolve in water to become accessible to plants, and because the nutrients dissolve at different pH levels, matching the nutrient needs of the plant to those available in the soil is best done by matching the pH level your plants need.

Measuring Soil pH

A pH meter gives an accurate reading of the pH level of the soil. If you do not have a meter, you can buy an inexpensive soil test kit to measure the pH via dyes that change color according to the pH of the soil. Mix a capsule of dye with a soil sample in a vial of water. After setting, determining the pH of the soil sample requires comparing the color of the water to an accompanying color chart. This method gives a good estimate of the soil pH, but is not exact.


New 4 in 1 TDS PH Meter PH/TDS/EC/Temperature Meter Digital Water Quality Monitor Tester for Pools, Drinking Water, Aquariums


  • ECO Farm new 4 in 1 TDS PH Meter PH/TDS/EC/Temperature Meter Digital Water Quality Monitor Tester for Pools, Drinking Water, Aquariums.
  • High precision and fast response
  • Adopts the digital screen display with backlight, which is more clear and convenient to read data.
  •  Compact pen-shape design, lightweight for mobility, you can carry and test anywhere.


ECO Farm High Precision 0.01 LCD PH Value Test Pencil Meter


  • Measurement range :0.00-14.00PH
  • Accuracy error:±0.1PH
  • Resolution: PH 0.01
  • Operating temperature: 0℃-80℃
  • Battery: 2x1.5v (AG13 button battery)
  • External dimensions :155mm×31mm(W)×18mm(H)


ECO Farm 3-in-1 Soil PH Tester Soil Moisture Sensor For Household


  • You can measure soil moisture, pH value and sunlight intensity with ECO Farm tester. It's helpful for you to plant flowers, plants and make them grow healthy and strong(This soil tester CAN ONLY be used in soil, it CANNOT be used to test any liquids)
  • Easy to use: Simply insert the probes into the soil about 4-6 inches (2/3 of the probes), and you'll get your reading
  • Compact for indoor&ourdoor use: Know when to water, adjust pH, or change lighting for your flowers, plants both indoor and outdoor
  • No battery needed: No batteries or electricity needed, plug and read
  • Scientifically accurate: Sensitive probe could sense changes of the soil and transfer details to the conductor, displaying the accurate values for you

Preferred pH of Plants

Many plants thrive in a soil pH between 6.0 and 7.5 because the essential nutrients are most available at that level. However, some plants require a higher or lower pH level for optimal growth. Seed packets and plant identification tags generally note if the plant’s preferences are outside of this range. Garden books and magazines often provide the ideal range of soil pH for specific plants, and make special note when plants require acidic or alkaline soil.


Commercial all-purpose potting soil typically ranges from acidic to slightly acidic, making it suitable for most houseplants, explains the California Garden Web. Special formulas may range from a pH of 5.5 to 7.5, allowing you to select soil with the proper pH for your houseplants. Check the label on the potting soil carefully, as it indicates whether it is an all-purpose soil or if it is designed for specific plants or groups of plants.

Conclusion:We should keep our plants grow in a good PH soil environment so that they can better digest the nutrition.  And if you have other questions about planting, welcome to visit our official website:

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