How to Balance pH for Ornithogalum Plants

Balancing the pH level of the soil is crucial for the optimal growth and health of Ornithogalum plants. These plants thrive in slightly acidic to neutral soil conditions, typically with a pH range between 6.0 and 7.0. By following the steps outlined in this comprehensive guide, you can ensure your Ornithogalum plants receive the right nutrients and flourish in your garden.

Determining the Soil pH

The first step in balancing the pH for your Ornithogalum plants is to test the soil pH. You can purchase a soil pH testing kit from a garden supply store or online. Follow the instructions provided with the kit to obtain an accurate pH reading.

Adjusting the Soil pH

ornithogalumImage source: Pixabay

Lowering the pH (Acidic Soil)

If your soil pH is above 7.0, indicating an alkaline condition, you can lower the pH by adding the following amendments:

Amendment Quantity per 1 sq. m of Soil
Elemental Sulfur 100 to 200 grams
Aluminum Sulfate 50 to 100 grams

Mix the chosen amendment thoroughly into the top 15 to 20 cm of the soil.

Raising the pH (Acidic Soil)

If your soil pH is below 6.0, indicating an acidic condition, you can raise the pH by adding ground limestone:

Amendment Quantity per 1 sq. m of Soil
Ground Limestone 200 to 400 grams

Incorporate the ground limestone into the top 15 to 20 cm of the soil.

Waiting and Re-testing

After amending the soil, wait for about 2 to 3 months before re-testing the pH. This waiting period allows the amendments to take effect and the pH level to stabilize.

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Ongoing Monitoring

ornithogalum 2Image source: Pixabay

Regularly monitor the soil pH and adjust as needed. Remember that pH levels can change over time due to factors such as rainfall, irrigation, and the addition of fertilizers or other amendments.

Other Factors to Consider

In addition to pH, Ornithogalum plants require the following environmental conditions for optimal growth:

  • Light: Provide at least 6 hours of direct sunlight per day.
  • Water: Water consistently, but avoid overwatering.
  • Temperature: Maintain a moderate temperature between 15°C and 25°C.

By following these steps and maintaining the ideal growing conditions, you can successfully balance the pH for your Ornithogalum plants and ensure their long-term health and vigor.


  • Arazi T, Hod N, Zohar M, Isaacson T, Doron-Faigenboim A, Reznik N, Yedidia I. Transcriptome Profiling of Ornithogalum dubium Leaves and Flowers to Identify Key Carotenoid Genes for CRISPR Gene Editing. Plants. 2020; 9(4):540.