How to Balance pH for Tansy Plants

Maintaining the optimal pH level in the soil is crucial for the healthy growth and development of Tansy plants. This comprehensive guide will walk you through the step-by-step process of balancing the pH for your Tansy plants, ensuring they thrive in their ideal growing environment.

Determining the Soil’s pH

The first step in balancing the pH for Tansy plants is to test the soil’s current pH level. You can use a soil testing kit or take a sample to your local extension service for professional analysis. Tansy prefers a slightly alkaline to neutral soil, with a pH range between 6.0 and 7.5.

Adjusting the Soil pH

tansyImage source: Pixabay

If the soil’s pH is too acidic (below 6.0), you can raise it by adding lime or wood ash. For every 10 square feet of garden area, add 5 pounds of lime to increase the pH by one point. Conversely, if the soil is too alkaline (above 7.5), you can lower the pH by adding elemental sulfur or aluminum sulfate. For every 10 square feet of garden area, add 1 pound of elemental sulfur to lower the pH by one point.

Monitoring the pH

After adjusting the pH, it’s essential to continue monitoring it regularly to ensure it remains within the desired range. Repeat the testing process every few months to maintain the optimal pH level for your Tansy plants.

Watering and Fertilizing

tansy 2Image source: Pixabay

In addition to balancing the pH, proper watering and fertilizing practices are crucial for the health of your Tansy plants. Use filtered water at room temperature when watering, as tap water may contain chemicals that can harm the plant. Fertilize lightly and consistently, adjusting the frequency based on the plant’s growth and development.

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Sunlight and Spacing

Tansy plants thrive in full sun, but they can also tolerate partial shade. Ensure your Tansy plants receive at least 6 hours of direct sunlight daily. When planting, space the Tansy plants 18 to 24 inches apart to allow for proper air circulation and growth.


Harvest Tansy leaves and flowers as needed, but avoid removing more than one-third of the plant at a time to maintain its health and continued growth.

By following these guidelines, you can create an optimal growing environment for your Tansy plants, ensuring they thrive and flourish in your garden.


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  2. PictureThis. (n.d.). Common tansy (Tanacetum vulgare) Flower, Leaf, Care, Uses – PictureThis. Retrieved from
  3. Healthline. (2019, September 26). Blue Tansy Essential Oil: Benefits and How to Use. Retrieved from