The key to healthy productive roses is good, fertile soil. … The correct pH level of our garden soil makes a huge difference to the health of our plants, with most plants growing best in slightly acidic to neutral soil (a pH between 6 and 7). The ideal pH for roses is a soil that tests between 6 and 6.5.

How do you acidify soil for roses?

When you mix elemental sulfur into the soil, bacteria break it down and in the process create sulfuric acid, which reduces the soil pH and increases soil’s acidity immediately. This process is best accomplished before planting so you can retest the soil in four to five months.

Is roses acid loving plant?

Ideal pH. … Luckily, roses prefer a soil pH close to the typical level for ordinary garden soil, which is slightly acidic to neutral (6.0 to 7.0). If your soil lies outside that range, as indicated by a soil test, it is easiest to amend the soil before planting, but you can make adjustments afterward.