Companion planting: With rain, nutrients will leach, leaving the top plants with a poorer soil, and high fertility at the bottom. Plants will also attract beneficial insects such as pollinators, provide each other with different types of nutrients and influence flavours.
Cosmic patterns: Ever noticed the bath water always spirals in the same direction when drained? Trees, seashells, broccoli heads, spiderwebs, spiral in the same direction too.

and in the same line...

The scaffold bed
In cities, horizontal space is limited, but vertical ones are in abundance.

This structure is made out of scaffolding and inclined cut oil barrels. The bottom is planted with a variety of basils and pepper plants while the top is home to aubergines, chillies and thyme. The middle shelf is good for lettuces and other greens. The sides would look great with beans or other climbers.
These beds are easily transformed into a green house by putting loops on individual shelves

The growing garden bin

Make holes at the bottom of a barrel and fill it up with any green material, manure, hay... urinate in it in the first few weeks. Add more material and a layer of soil when the bin contents have shrank. Squash love it if it contains lots of manure. Try growing tomatoes at the base of the barrel on the south side and lettuces on the north face.


A variation would be to make slits on the side of the barrel and growing strawberries or vining plants.