How to Calculate the Right Amount of Fertilizer for Yews

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Yews are popular evergreen shrubs that add beauty and structure to gardens. Proper fertilization is essential for healthy growth and vibrant foliage. Knowing how to calculate the right amount of fertilizer ensures your yews thrive without overfeeding.

Understanding Yew Nutritional Needs

Yews require a balanced supply of nutrients, especially nitrogen, phosphorus, and potassium. These nutrients support foliage growth, root development, and overall plant health. The specific fertilizer type and amount depend on soil conditions and the size of your yew.

Step-by-Step Calculation Method

Follow these steps to determine the appropriate fertilizer amount for your yews:

  • Measure the height and width of your yew to estimate its size.
  • Determine the recommended fertilizer application rate based on the plant’s size.
  • Check the fertilizer label for application instructions, including the amount per square foot or per plant.
  • Calculate the total area or volume of soil around the yew.
  • Adjust the fertilizer amount proportionally based on your measurements and the label instructions.

Example Calculation

Suppose you have a yew that is 3 feet tall and 4 feet wide. The fertilizer label recommends 1 pound of fertilizer per 100 square feet. First, calculate the approximate area covered by your yew:

Area = (height x width) / 2 = (3 ft x 4 ft) / 2 = 6 square feet

Next, determine the fertilizer amount: (6 sq ft / 100 sq ft) x 1 pound = 0.06 pounds

This means you should apply approximately 0.06 pounds of fertilizer around your yew.

Additional Tips

To ensure optimal growth:

  • Apply fertilizer evenly around the root zone.
  • Water thoroughly after fertilizing.
  • Repeat fertilization according to the product instructions, typically in early spring and late summer.
  • Test your soil periodically to adjust fertilization needs.

Conclusion

Calculating the right amount of fertilizer for yews involves understanding their size, soil conditions, and the fertilizer’s instructions. Proper application promotes healthy, lush yews that enhance your garden’s beauty for years to come.