150mm and 300mm Digga Tree Planting Augers | The Ultimate Growth Hack for Your Landscape

Precision Drilling for Faster Growth and Healthier Roots

The Digga Tree Planting Auger is not your standard borehole tool—it’s a purpose-built solution designed to give your saplings and shrubs the best possible start. Engineered with a unique tapered design, this auger drills a hole that is wider at the top than at the bottom. This specific geometry mimics the natural root ball shape, encouraging lateral root growth and preventing "root spiralling," which often occurs in standard cylindrical holes. Whether you are a professional landscaper, a council contractor, or a commercial orchardist, the Digga Tree Planting range ensures every hole is optimised for plant health and long-term stability.

Available in 150mm and 300mm variants, these augers are built to the same rigorous standards as Digga’s heavy-duty industrial range. They feature high-grade steel flights and replaceable wear parts, ensuring they can handle thousands of plantings across diverse soil types. By creating a friable soil environment at the edges of the hole, these augers allow moisture and nutrients to penetrate more effectively, significantly increasing the survival rate of your vegetation.

Key Product Features

• Specialised Tapered Design: Drills a hole that tapers toward the bottom, providing the ideal profile for root expansion and stability.

• Australian Made: Built locally to withstand the abrasive conditions of Australian soils, from sandy loams to compacted earth.

• High-Penetration Pilot: Features a heavy-duty pilot that keeps the auger centred and stable, even when starting holes in uneven terrain.

• Replaceable Cutting Teeth: Equipped with high-wear resistant teeth that can be easily swapped out, ensuring your auger maintains peak performance for years.

• Optimised Spoil Clearance: The flighting pitch is engineered to lift loose soil out of the hole while leaving the sidewalls textured rather than "glazed," allowing roots to break through easily.

• Versatile Compatibility: Designed to fit seamlessly with the Digga range of planetary drive units for mini excavators, skid steers, and tractors.

Specifications & Sizes

• Features: 150mm/300mm Tree Planting Auger

• Bottom Diameter: 150mm

• Top Diameter: 300mm

• Tapered Profile: Yes

• Standard Length: 1200mm

• Flight Thickness: 8mm Heavy-Duty Steel

• Drive Hub Options: 65mm Round / 50.8mm Hex

Why Choose a Tapered Auger?

Standard augers can sometimes "glaze" the sides of a hole in clay-heavy soils, creating a hard barrier that roots struggle to penetrate. The Digga Tree Planting Auger’s specific flighting action fractures the surrounding soil as it drills. This creates a "soft" zone that allows new roots to establish themselves quickly in the surrounding native soil, leading to faster growth and better drought resistance.

Tree planting augers are made to order. Build times will occur.