Build your own raised bed. Get more food from better soil with less water with raised beds. Landscape designer Linda Chisari shares her design (and materials list), along with advice on sizing and adding a convenient irrigation system.
50 Vertical Garden Ideas That Will Change the Way You Think About Gardening
Cedar raised bed make gardening easier, more accessible, more economical, and more efficient. But often a cedar raised bed can cost hundreds of dollars. With this plan, I figured out how to create raised cedar beds - deep ones - for about 10 each.
Nice option too container/raised bed herb gardening. Some of these herbs won't stay small and cute, so would need to plan to plant the taller ones in the upper tiers and maybe with a little bit larger growth area.