Plantation execution: planting a Miyawaki forest at three to five saplings per square metre.

Density is the mechanism. At three to five saplings per square metre the plants compete for light and put their energy into vertical growth, closing the canopy in a few seasons. The closed canopy then shades out weeds and holds moisture, which is what allows the plot to become self-sustaining.

Natural thinning is expected and is part of how a dense plantation matures, not every sapling in a forest reaches the canopy. What matters is whether the plot closes canopy and stratifies. This is also why credible practitioners do not quote a guaranteed survival percentage for individual saplings.

For most of India, planting is timed to the onset of the monsoon so the establishment period runs through natural rainfall. Where irrigation is assured, other windows are workable, but monsoon planting reduces establishment stress and water cost substantially. The window is short, so soil work must be finished before it opens.

Young, hardened saplings, typically raised in bags and about knee height: rather than large nursery stock. Small plants transplant with less shock, establish roots faster and are what the method assumes. Large specimen plants at Miyawaki density would be both wasteful and counterproductive.

The net plantable area is measured after deducting paths, services, setbacks and existing trees, and the count follows from the density, three to five saplings per square metre of net area. Species-wise counts then come from the proportions in the approved species matrix.

Per square metre a Miyawaki plot costs more upfront, because of the soil work and the number of saplings. Over the life of the plot the position reverses: conventional landscape planting carries permanent maintenance, while a Miyawaki plot needs care for two to three years and then very little. The comparison should be made over the whole period, not at planting.

Yes. The method scales down well and has been used on plots of a few hundred square metres in schools, campuses and residential layouts. Below a certain size the plot behaves more like a dense thicket than a forest, but the ecological and microclimate benefits still hold.