via PROVENWINNERS.COM Experienced gardeners share their greatest container garden ideas, from helpful plant design tips to how to keep your patio clean. Container Garden Ideas: Plant Multiples Ken Orich of Lethbridge, Alberta, shares that his best container idea is to use space wisely by planting multiple plants in a single pot. He says, “When space is limited, I use a tomato cage in a pot and plant snow peas, scarlet runner beans and other climbers. I space the seeds about 1 inch apart both inside and outside the lowest ring.” Building a vertical herb garden will help make the most of y...