Can you dig it? - Vertical gardening

Going up? As space and various limitations make it hard to find a place to plant your tomatoes, your apples or flowering bromeliads out in the landscape, just go up.

This is nothing new in the world of horticulture, but in new homes the backyard space has become prime real estate for various garden niches and places to grow plants.

If you have a fence, a barren wall or strong branched trees, these are all spaces for gardening in the vertical plane and offer added room to grow your favorites.

The art of espalier has been practiced for centuries by training plants against a barren wall or in the...