When planting your Eastern White Pine Trees, we recommend that you use Bio-tone starter fertilizer by Espoma. Simply mix the recommended amount of Bio-tone into the back-fill soil and water in generously when back-filled. This is an all-natural plant food that is combined with a stronger concentration of our beneficial bacteria along with both endo and ectomycorrhizae. This means that the “good” fungus from the starter fertilizer colonizes on the growing roots of your new plant, reducing the risk of disease-causing fungus to attack your freshly planted tree. It has also shown promise in stimulating the growth of the new roots, which means a quicker establishment for your plant. After establishment and during the following years, we recommend using Holly-Tone at the recommended rates. It is also an organic and slow-release fertilizer which will feed your trees the proper amount of nutrients over a period of time rather than all at once. This can burn the root tips and actually have the opposite effect of slowing down plant growth. It also will help to maintain the acidity level in the soil that the Eastern White Pine needs to thrive.