Clearing Land in Puna, Hawaii: Lessons Learned About Preserving Soil

When clearing land in Puna, Hawaii, one of the biggest surprises is discovering how little soil actually exists. Beneath the lush greenery lies mostly lava rock, with only about an inch of soil in some areas. This thin layer is precious, and how it’s handled during land clearing can make or break future planting success.

The Reality of Puna Soil

Puna’s landscape is young in geological terms. Much of the district sits on hardened lava flows, and over time, organic matter slowly builds up to form a thin layer of soil. On my property, the most I found was about an inch of usable soil before hitting solid rock. That inch, however, is vital for growing anything—from bananas to ornamental plants.

Why Scraping Beats Bulldozing

Many people assume bulldozing is the fastest way to clear land, but in Puna, that approach can destroy what little soil exists. Bulldozers tend to tear up the ground aggressively, mixing the topsoil with rocks and pushing it deep into crevices. Once that happens, the soil is effectively lost.

Scraping, on the other hand, is a gentler method. It involves carefully removing vegetation and debris while preserving the thin layer of soil. By scraping first, it’s possible to collect and set aside the soil before any heavy equipment moves in. After clearing, that saved soil can be redistributed to create planting areas or garden beds.

The Consequences of Bulldozing First

Driving around the subdivision, it’s easy to spot the difference between scraped and bulldozed lots. On bulldozed properties, the ground is bare and rocky, and plants struggle to take root. Bananas, in particular, show signs of stress—yellowing leaves, stunted growth, and poor fruiting. Without soil, even hardy tropical plants can’t thrive unless new soil is brought in.

Building a Healthier Start

For anyone clearing land in Puna, the key takeaway is simple: protect the soil. Scrape first, bulldoze later if necessary, and always save what little topsoil exists. It may not seem like much, but that inch of earth is the foundation for every future garden, orchard, or landscape plan.

The Role of Animals in Soil Health

Raising animals on the property can also make a big difference in improving soil fertility. Livestock naturally contribute organic matter and nutrients that enrich the ground over time. Among all animals, pigs stand out as the most effective. Their manure provides nutrient-rich fertilizer that helps plants grow stronger and healthier. In addition, pigs can help turn and aerate the soil, creating a more balanced ecosystem for farming. This natural fertilization process supports healthier crops and reduces the need for expensive store-bought soil or chemical fertilizers, making farming more sustainable and affordable.

Preserving soil isn’t just about growing plants—it’s about respecting the land and working with what nature provides. In Puna, that means treating every inch of soil like gold and letting animals play their part in keeping it alive.