When designing a planting plan for a small space, make groupings of odd numbers of plants to heighten visual impact . Cover every square inch of the soil with a canopy of plants so that no space is wasted. This doesn’t mean overcrowding plants so they compete for nutrients, sunlight and water. Just space plants so that the leaves will barely overlap as the season progresses. Add compost, aged manure and other amendments on a regular basis to support soil health when planting intensively.
In raised bed vegetable gardens or formal settings, use square space gardening techniques instead of rows to intensify planting.