Earth | Water | Air | Fire | Space
There is an invisible and constant relation between all five elements. Vastu acknowledges this and applied to gardens, the idea is to design them so these forces are able to complement what is being grown in each of the sections of the garden. It takes advantage of the benefits bestowed by the five elements of nature to create a congenial living and working environment for plants.
This is all quite experimental but fun to explore coupling the "water" section of the garden with melons, "fire" with peppers, "earth" with potatoes, "air" with salad greens, etc., and "space" with literally, open space for wild and native plants to grow untended.
For Garden Design
A garden is a living expression of the inhabitants
Vaastu Shastra is an ancient doctrine which consists of precepts born out of a traditional view on how the laws of nature affect structure, in this case, a garden. The designs are based on directional alignments. It has been applied in Hindu architecture, especially for Hindu temples, and covers other domains, including vehicles, vessels, furniture, sculpture, paintings etc. The foundation of Vastu is traditionally ascribed to the sage Maamuni Mayan in South India, and Vishvakarman in North India.
While Vastu had long been essentially restricted to temple architecture, there has been a revival of it in India, in recent decades, notably under the influence of late V. Ganapati Sthapati, who has been campaigning for a restoration of the tradition in modern Indian society since the 1960s. Learn more about Vaastu Shastra.