If ground-level gardening will be difficult for the gardener, consider raised bed or container gardening. Raised beds can be built with railroad ties, landscape timbers, bricks or concrete blocks. A height of about 2 feet is good for beds tended from a wheelchair. If both sides of the bed are reachable, the bed should be no more than 4 feet wide. If reachable by only one side, it should be only 2 feet wide.
Containers can sit on the ground or hang on walls or fences.
Containers must have holes for drainage. If the edges of raised beds or containers are wide and sturdy enough, gardeners can sit on them. Many herbs and miniature or bush varieties of vegetables or fruits are perfect for raised bed and container gardening. Consider low-maintenance plants such as succulents or flowering perennials, but remember that plants in containers and raised beds dry out more quickly and must be watered daily in the summer. If you find you have more energy and time, you can always enlarge it.