Whether deciduous or evergreen, hedges are heavy feeding plants that require annual fertilizing to maintain their appearance and produce ample foliage. Hedges can be fertilized using a either a slow-release phosphorous fertilizer or an organic fertilizer mix. The best time for hedge fertilizing is in early spring, as the fresh fertilizer will give the hedges the energy necessary to produce lush foliage.
Sprinkle phosphorus fertilizer with a scoop around the base of the hedges out to a distance of 2 feet. Spread 1 lb. of phosphorus fertilizer over 25 feet of hedge row. Read the instructions to verify the proper amount of fertilizer for your hedges.
Water in the fertilizer using a garden hose. Fill the hedge's bed completely with water and allow the water to sink into the soil.
Repeat Step 2 to ensure that all of the fertilizer is washed into the soil.
Sprinkle fish-emulsion fertilizer around the base of the hedges with a scoop. Apply 1 tbsp. of fertilizer around the base of each hedge.
Mix the fish emulsion fertilizer into the soil using a small hand rake.
Water in the fertilizer using a garden hose. Fill the hedge's bed completely with water and allow the water to sink into the soil. Repeat this process once to ensure that all the fertilizer is washed into the soil.