Grapes can be a great addition to your garden.  These deciduous vines provide fruit, wine and shade.  Grapes can be planted on fences, trellises and arbors and will grow just fine in a wide range of soil types, as long as there is adequate soil moisture.  Although not ideally suited for our coastal conditions, it is possible to grow both table, and wine grapes here in Southern California.  Your most important decision is choosing a variety or varieties that are suited for your local region.  Consult with a local grower or knowledgeable nurseryman who is familiar with your area.  Once you have chosen appropriate varieties, plant your new grapes 6-10 feet apart, or singularly, and allow them to climb up onto a structure of some sort for support.   Dig a hole 18” deep and 12” around.  Into the soil at the bottom of this hole, mix two heaping handfuls of compost, 5 cups each of landscape mix and worm castings and 2 cups of azomite.   Once thoroughly mixed, place the root ball of the grape down into the hole and fill the soil back in around it.  As you are backfilling the soil, mix in an additional two heaping handfuls of compost, 3 cups of both landscape mix and worm castings and one more cup of azomite.   In subsequent years, fertilize your grapes by adding 6 cups each of landscape mix and worm castings into the soil around the base of the vines in the spring as the canes are beginning to bud out.  An additional feeding of the same quantities can be done around the first of July.   After each feeding, make sure that the ground under your vines is properly mulched.  An animal manure mulch can be applied with the first feeding in the spring, and then a low nitrogen mulch such as a simple leaf litter can be used later in the season.   Your vines will benefit from a yearly pruning, this is typically done in the late fall once all of the leaves have fallen to the ground.