Where do you place tree and fertilizer spikes on trees that were planted 4 months ago?

Tree and fertilizer spikes should be placed around the drip line of the tree, which is the outer edge of the tree's canopy. For young trees planted 4 months ago, position the spikes about 6 to 12 inches away from the trunk to avoid root damage. Ensure the spikes are spaced evenly and inserted into the soil at the recommended depth, following the manufacturer's instructions. This helps to promote healthy root growth and nutrient absorption.