Certified Professional Horticulturist (CPH) Practice Exam

What is the first step in preparing an area for a vegetable garden?

1. Till the area to break up the soil

2. Incorporate manure into the soil

3. Add a general-purpose fertilizer to the soil

4. Test the soil to determine nutrient and pH levels

The correct answer is: Test the soil to determine nutrient and pH levels

Testing the soil to determine nutrient and pH levels is an essential first step in preparing an area for a vegetable garden because it provides critical information about the existing soil conditions. Knowing the nutrient content and pH level allows gardeners to make informed decisions about amendments that may be needed to optimize plant growth. Soil tests can reveal deficiencies in key nutrients such as nitrogen, phosphorus, or potassium, guiding the choice of fertilizers or organic amendments to be added later. Additionally, testing the pH helps in understanding how well plants can uptake nutrients; certain vegetables thrive in specific pH ranges. By starting with a soil test, you ensure that subsequent steps, such as tilling, adding manure, or incorporating fertilizers, are tailored to the specific needs of the soil and the crops you intend to grow, ultimately leading to a healthier and more productive vegetable garden.