7 Tools for Digging Post Holes and Planting Large Shrubs

Digging into dense clay or gravel-laden soil to drop a row of fence posts or set heavy root-balled shrubs can turn a weekend project into a punishing ordeal. Using the wrong tool wastes energy, causes early fatigue, and leads to poorly seated posts or stressed plant roots. Having a dedicated arsenal of digging and moving tools transforms backbreaking ground-prep work into an efficient, predictable routine.

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What to Consider Before You Start Digging Holes

Soil composition dictates every tool choice on a small acreage, from heavy clay to rock-filled subsoil. Digging a straight-walled hole in soft loam requires far less mechanical force than penetrating compacted subsoil laced with aggressive tree roots. Assessing ground moisture, depth requirements, and obstruction density beforehand prevents broken tool handles and unnecessary physical exertion.

Hole dimensions must match the specific payload, whether securing a four-inch timber post or dropping in a massive root ball. Fence posts require deep, narrow shafts that minimize soil displacement and preserve surrounding structure, while shrubs need wide, saucer-shaped basins that encourage lateral root growth. Matching your excavation style to the task prevents structural post failure or waterlogged plant root systems.

Physical leverage and fatigue management are critical when tackling dozens of holes across a property. Working in short, targeted sessions with specialized gear keeps momentum high and reduces injury risks. Planning the layout, marking exact locations, and prepping soil conditions early ensures every excavation step moves smoothly.

Checking Underground Utilities Before Any Project

Striking a buried utility line can cause severe injuries, expensive repair bills, and property-wide service outages. Even shallow digging for small shrubs or short garden fence posts can intersect shallow electrical conduit, gas lines, or fiber optic cables. Calling 811 or contacting local utility locator services at least two days before breaking ground is mandatory for safe excavation.

Underground lines rarely run in perfectly straight lines or predictable depths due to soil settling and original installation quirks. Once utilities mark the ground with color-coded paint or flags, maintain a strict two-foot tolerance zone on either side of the marks. Hand-digging carefully with non-conductive handles within these zones prevents accidental strikes while working near active utility lines.

Post Hole Digger – Ames Dig-Ezy Post Hole Digger

A manual post hole digger is essential for removing loose dirt from deep, narrow openings without expanding the hole’s top diameter. Standard round-point shovels leave too wide a footprint, making post alignment difficult and requiring excess backfill. The Ames Dig-Ezy Post Hole Digger excels at lifting out core soil samples while leaving clean, vertical side walls intact.

Key specifications and features include:

• Blade Design: Hardened steel blades with tempered bevel edges
• Handle Build: 48-inch high-strength steel handles with anti-slip grips
• Best Uses: Deep vertical shafts, 4×4 or 6×6 timber post holes

Featuring hardened steel blades welded directly to heavy-duty steel handles, this tool eliminates the flex and breakage common in cheap wooden-handled alternatives. The specialized blade geometry bites deeply into dense dirt, while the offset handles reduce knuckle-clearing pinch points when working at deep depths. Its 48-inch handle length balances reach and leverage, making it ideal for standard two-to-three-foot deep post footings.

Operating this tool requires rhythm and upper-body drive, as the user must drive the open blades down hard and spread the handles to clamp soil. In rocky or heavy clay ground, it works best when paired with a heavy digging bar to shatter obstacles first. It is the right choice for setting boundary fences or garden arbors, but less suited for digging wide planting basins for shrubs.

Digging Bar – Truper Slate Bar with Tamper Head

Hardened clay, dense shale, and stubborn tree roots easily stop standard shovels in their tracks. A heavy-duty steel digging bar acts as a wedge, lever, and hammer to shatter underground obstructions before dirt removal. The Truper Slate Bar with Tamper Head serves dual roles by breaking tight ground and later packing backfill firmly around installed posts.

Key specs and functional details include:

• Tool Length: 66 inches overall length
• Total Weight: 17 pounds of high-carbon forged steel
• Primary Functions: Rock prying, root slicing, backfill compaction

Forged from high-carbon steel, this 17-pound, 66-inch bar provides massive downward momentum with minimal muscle effort. The sharp chisel tip slices through thick roots and pries loose heavy rocks, while the flat tamper head efficiently compresses soil layers. This balance of weight and durability ensures the bar will not bend under maximum prying leverage.

Users should let the natural weight of the bar do the work rather than forcing it downward, which prevents premature arm fatigue. Due to its significant weight, careful foot placement is necessary to avoid injury during aggressive chop strokes. This bar is indispensable for setting rigid fence lines in rocky terrain, though it is unnecessarily heavy for simple raised garden beds.

Trenching Shovel – Corona RazorTooth Trench Shovel

Digging sharp-edged trenches or clean, flat-bottomed post footings demands a narrow, specialized shovel profile. Broad irrigation shovels drag excess soil along the margins, cluttering the hole floor and wasting energy. The Corona RazorTooth Trench Shovel provides a precise, narrow blade designed specifically to lift loose earth straight out of confined spaces.

Key design specifications include:

• Blade Width: 4-inch wide tempered steel blade
• Handle Material: Reinforced fiberglass with non-slip grip
• Step Plate: Formed RazorTooth step for secure foot placement

Built with a 4-inch tempered steel blade and a reinforced fiberglass handle, this tool resists snapping under heavy leverage loads. The notched RazorTooth step surface gives work boots a non-slip ledge for maximum foot pressure when driving through hard ground. Its forward-turned step design helps clear loose backfill out of deep holes without disturbing established sidewalls.

The narrow blade width requires extra scoops compared to a traditional shovel, making it specialized rather than universal. Clean the steel blade after use and spray it with light oil to prevent rust in damp storage areas. This shovel is perfect for clean-up work in post holes and tight utility trenches, but ineffective for moving wide piles of topsoil or mulch.

Earth Auger – XtremepowerUS Gasoline Earth Auger

When setting dozens of posts or planting a long windbreak, manual excavation quickly leads to exhaustion and slow progress. A power-driven earth auger drills uniform shafts into the ground in a fraction of the time required by hand tools. The XtremepowerUS Gasoline Earth Auger delivers the engine torque necessary to bore multiple holes quickly across varied terrain.

Key engine and bit options include:

• Power Plant: 52cc 2-stroke air-cooled gasoline engine
• Included Bits: Alloy steel drill bits suitable for 6 to 10-inch holes
• Control System: Handgrip throttle with safety lockout switch

Driven by a 52cc 2-stroke gasoline engine, this unit produces high rotational force through heavy soil types. The kit includes bit choices suitable for various post diameters, featuring carbon steel drill bits with sharp alloy cutting edges. The ergonomic die-cast handles incorporate finger-tip throttle controls, giving operators responsive control over engine power and drill speed.

Power augers can kick back violently if the bit binds on a large hidden rock or thick taproot. Operating this equipment demands a firm stance, protective eye gear, and consistent mechanical maintenance like fuel-mixing and air filter cleaning. It is an ideal investment for property owners fencing multi-acre pasture lines, but overkill for planting a couple of yard shrubs.

Cutter Mattock – Husky Hickory Cutter Mattock

Topsoil layers are frequently filled with tangled brush roots, matting grass, and compact soil crusts that stop vertical shovels. A dual-headed mattock utilizes horizontal swinging force to chop through tough surface barriers and loosen packed dirt. The Husky Hickory Cutter Mattock combines a sharp axe blade with a broad grubbing hoe to clear planting zones quickly.

Key specifications include:

• Head Weight: 5-pound forged steel dual-end head
• Handle Type: 34-inch genuine hickory wood handle
• Cutting Surfaces: Vertical root axe on one side, horizontal adze on the other

Featuring a 5-pound forged steel head, this tool uses mass to slice cleanly through tough roots up to two inches thick. The 34-inch dense hickory handle absorbs shock during hard impacts, protecting wrists and shoulders from joint stress. Its dual-end head design allows the operator to swap between root-cutting and dirt-scraping with a simple turn of the wrists.

Swinging a mattock demands broad clearance around the workspace and accurate aiming to avoid striking boot toes. Periodically inspect the friction-fit head to ensure it remains tight on the oval handle stock. This tool is essential for prepping large, wide shrub holes in undeveloped soil, but unnecessary for clear, pre-tilled soil beds.

Planting Auger – Power Planter Extra Duty Auger

Digging deep, wide basins for container plants or small shrubs with hand shovels leaves soil clods that are hard to backfill tightly. A drill-attached planting auger pulverizes soil while pulling earth upward, creating soft, aerated planting pockets. The Power Planter Extra Duty Auger connects directly to standard cordless drills to make high-volume planting rapid and uniform.

Key dimensions and compatibility:

• Auger Size: 7 inches in diameter by 28 inches long
• Drive Style: 1/2-inch non-slip hex drive shaft
• Construction: Solid steel flighting and center shaft

Engineered with a 100% solid steel center shaft and double 10-gauge flighting, this auger resists bending under high torque load. Measuring 7 inches in diameter by 28 inches long, it creates ideal planting holes without requiring constant stooping or kneeling. The hex-head drive end locks securely into standard 1/2-inch drill chucks without slipping under resistance.

Success depends on pairing this tool with a high-torque cordless drill (typically 18V or 20V) equipped with a side handle for control. Running the drill at medium speed prevents sudden wrist twisting if the bit catches buried debris. It is a phenomenal asset for planting dozens of potted shrubs, perennials, or bare-root stock, though unsuitable for deep fence post footings.

Yard Cart – Gorilla Carts Heavy Duty Steel Cart

Excavating large holes generates heavy piles of subsoil, while planting requires hauling heavy, balled-and-burlapped root balls across the yard. Dragging materials manually across uneven terrain leads to physical strain and damaged turf. The Gorilla Carts Heavy Duty Steel Cart handles dense ground loads, moving dirt, concrete mix, and heavy stock effortlessly.

Key capabilities and specifications:

• Max Payload: 1,200-pound dynamic load capacity
• Bed Dimensions: 49-inch by 24.5-inch steel mesh bed
• Tire System: 13-inch pneumatic turf tires on steel hubs

Boasting a 1,200-pound load capacity, this cart features removable steel mesh sides that convert the bed into a flatbed for wide root balls. Its 13-inch pneumatic turf tires roll smoothly over soft mud, gravel paths, and exposed tree roots. The patented 2-in-1 convertible handle can be pulled by hand or hooked to a garden tractor or ATV hitch for heavy loads.

While highly durable, steel carts require occasional tire pressure checks and grease applications on the wheel bearings to maintain smooth rolling action. Storing the cart under cover prevents rust from forming in the bed joints after hauling damp soil or wet gravel. It is indispensable for any land manager moving heavy landscape materials, though unnecessary for minor garden maintenance.

Essential Tips for Planting Large Burlapped Shrubs

Balled-and-burlapped (B&B) shrubs represent a significant financial investment and require precise excavation to ensure long-term survival. The planting hole must be dug two to three times wider than the root ball, but no deeper than the distance from the bottom of the ball to the root flare. Setting the plant on firm, undisturbed soil at the base prevents the shrub from settling too deep, which rots the lower trunk.

Once the shrub is positioned in the hole, cut away all wire baskets, synthetic twine, and as much burlap as possible from the upper half of the root ball. Buried synthetic materials will not decompose and will strangle growing roots over time, while natural burlap exposed to air acts as a wick that dries out the root system. Gently score tightly packed root edges to encourage outward root extension into native surrounding soil.

Backfill the hole using native soil, light tamping to eliminate air pockets, and deep initial watering to settle the earth. Avoid adding large quantities of rich amendments directly into the hole, as this keeps roots from expanding past the planting basin. Finish with a 3-inch layer of organic mulch, keeping it several inches away from the main trunk structure.

How to Set Fence Posts for Long Lasting Stability

Structural fence posts fail when footings are set shallowly or exposed to moisture accumulation at ground level. As a general rule, set one-third of the total post length into the ground, extending below the regional frost line to prevent winter heave. Clean, straight hole walls preserve soil density and minimize the volume of concrete or gravel backfill required.

Pour a 3-to-4-inch base layer of gravel into the bottom of the hole prior to placing the wooden or steel post. This drainage pad prevents water from pooling directly under the post base, which causes premature wood rot or metal rust. Use a digging bar tamper end to compact soil layers around the post or level concrete fill while checking plumb with a post level.

When using concrete backfill, slope the wet top surface away from the post base to shed rainwater outward. Allow the footing to cure fully before attaching fence rails or stretching wire, preventing post shift under tension. For non-structural garden posts, compacted crushed gravel backfill provides excellent stability alongside superior natural drainage.

Post Planting Care and Maintenance Guidelines

Newly planted shrubs and freshly reset post lines require close monitoring to protect your labor investment over the first season. Large shrubs experience severe root shock during transplanting and need consistent, deep soaking rather than frequent surface sprinklings. Soaking the root zone twice weekly encourages deep root growth and strengthens wind resistance.

Check new fence posts monthly for settling, tilting, or loosened backfill caused by heavy rain or soil contraction. Tamp down surrounding earth firmly if loose soil develops, and inspect wood posts for moisture damage or insect activity around the soil line. Re-applying wood sealant or paint annually keeps posts protected from weathering and premature degradation.

Prune dead or broken branches on newly planted shrubs to reduce water stress while root systems re-establish. Monitor mulch layers throughout the year, replenishing decomposed organic matter to preserve soil moisture and suppress competitive weeds. A well-maintained root zone ensures healthy development and guarantees your post structures remain rock-solid for years.

Equipping your tool shed with high-leverage digging bars, specialized shovels, and robust augers changes the entire dynamic of ground management on your property. By pairing proper tool selection with smart excavation and planting techniques, every post you set will stand true and every shrub you plant will thrive. Take the time to clear utilities, choose the right equipment, and watch your property projects take shape efficiently.