A great variety of trees, shrubs, annuals, and perennials can be grown in the seashore area. The homeowner just has to select the proper plants for his or her location and prepare the soil properly. Any planting should include good soil preparation in advance to create a good growing medium. All of the above amendments except treated sludge and possibly top soil will increase soil acidity. Use ground limestone to raise the pH-most plants other than azaleas, rhododendrons, and camelias will benefit from the addition of lime to the planting site.
Organic fertilizers are safe to use, but expensive per unit of actual plant foods.
Use only a small amount of fertilizer in soil. Mix 4-6 ounces per bushel of soil. Once the hole is dug, use the soil that was removed to blend in the various amendments your particular soil needs, i.e. add peat, lime, etc., or sand in heavy soils. Place 3-4 inches of your mixed soil in the bottom of the hole, and set your new plant in. Be sure that you do not set the plant too deep.