How to Use a Garden Auger for Easier Planting

A garden auger can make planting flowers, bulbs, vegetables, and smaller plants much faster and easier. After spending an afternoon digging one hole after another with a shovel, you quickly learn how tiring planting can become.

A garden auger attaches to a cordless drill and uses a spiral-shaped blade to loosen and lift soil as it turns. It won’t completely replace a shovel for every planting job, but it can save time, reduce bending, and make preparing a new flower bed much more manageable.

At Bobby & Lynn’s Plant Farm, we’ve found that the right garden tool doesn’t just make a job faster. It can also help you enjoy the work a whole lot more.

Quick Answer

A garden auger is useful for planting bulbs, annual flowers, vegetables, perennials, and other smaller plants. It can also help loosen soil for shrubs, but shrubs and trees generally need a planting hole considerably wider than their root ball. Use the auger to break up the soil, then widen and shape the hole with a shovel when necessary.

What Is a Garden Auger?

A garden auger is a heavy-duty spiral bit made for digging and loosening soil.

Most smaller garden augers fit into the chuck of a cordless drill. When the drill turns, the spiral blade pulls itself into the ground and brings loosened soil toward the surface.

Garden augers are available in different widths and lengths. Small augers are useful for bulbs and bedding plants, while wider versions can help prepare holes for larger perennials and small shrubs.

The biggest advantage is speed. Instead of removing the soil one shovel full at a time, an auger loosens a narrow planting area in seconds.

Why Use a Garden Auger?

A garden auger can be especially helpful when you’re planting several plants at one time.

It reduces repetitive digging

Digging one planting hole with a hand trowel or shovel may not seem difficult. Digging 20, 30, or 50 holes is a different story.

An auger handles much of the repetitive soil loosening, which can reduce the amount of bending, twisting, and lifting involved.

You’ll still need to work carefully and may need a shovel for finishing larger holes, but the auger can take care of much of the initial effort.

It makes planting faster

A garden auger can prepare holes for bulbs, annuals, and smaller perennials much faster than digging each one by hand.

The exact amount of time saved depends on:

• The size of the auger
• The type of soil
• The moisture level
• The number of rocks and roots
• The size of the plants
• The power of the drill

Loose garden soil may be easy to dig, while hard Georgia clay can take more time and require extra care.

It helps create consistent holes

Using the same auger for a group of similar plants helps produce holes with a consistent starting width and depth.

This can be useful when planting:

• Rows of bulbs
• Repeated annuals
• Vegetable transplants
• Bedding plants
• Small perennials
• Ornamental grasses

Consistent holes can make spacing and planting depth easier to manage, but always adjust each hole for the plant’s actual root system.

What Can You Plant With a Garden Auger?

A garden auger can help with several common gardening jobs.

It may be useful for:

• Planting spring and summer bulbs
• Installing annual flowers
• Planting vegetable transplants
• Adding smaller perennials
• Preparing holes for ornamental grasses
• Loosening compacted garden soil
• Mixing potting soil in a large container
• Preparing space for stakes or supports
• Starting holes for small shrubs

It’s one of those tools that often finds more uses around the garden once you have it.

You can see the garden tools we use and recommend for planting, watering, pruning, cleanup, and other jobs around the farm.

A Garden Auger Does Not Replace Proper Planting

An auger makes digging easier, but the finished planting hole still needs to fit the plant properly.

A narrow auger hole may work well for a bulb or small flower plug. It usually isn’t wide enough by itself for a container-grown shrub or tree.

For shrubs and trees, the planting hole should generally be wider than the root ball but no deeper than the root ball itself. A wide hole allows roots to spread into the surrounding soil, while an overly deep hole can cause the plant to settle.

The University of Georgia recommends preparing a planting hole at least twice as wide as the root ball and only as deep as the root ball. You can read its complete advice on properly planting trees and shrubs.

When using an auger for a larger plant:

1. Use it to loosen several areas within the planned hole.
2. Remove the loosened soil.
3. Widen the hole with a shovel.
4. Check the depth against the root ball.
5. Roughen any smooth or compacted sides.
6. Place the top of the root ball level with or slightly above the surrounding ground.

Think of the auger as a helpful digging tool—not a reason to squeeze a large root ball into a narrow hole.

Choosing the Right Garden Auger Size

Different planting jobs require different auger sizes.

Small augers

Small-diameter augers are useful for:

• Bulbs
• Flower plugs
• Vegetable seedlings
• Small annuals
• Landscape stakes

A smaller auger gives you more control and removes less soil than a wide one.

Medium augers

Medium-width augers work well for:

• Larger annuals
• Small perennials
• Quart-sized plants
• Ornamental grasses
• Loosening soil around a future planting hole

Check the width of the plant’s root system before deciding whether the auger hole is large enough.

Wide augers

Wider augers may help with:

• Gallon-sized perennials
• Small shrubs
• Larger planting areas
• Hard or compacted soil

Even with a wide auger, inspect the hole before planting. A shrub may still need a wider, saucer-shaped hole to encourage roots to grow outward.

Long augers

A longer auger can reduce bending because it allows you to work from a more upright position.

However, a longer or wider bit can create more twisting force. Make sure your drill is suitable for the auger and that you can control it safely.

Choosing a Cordless Drill

The drill needs enough power and torque to turn the auger through soil without being constantly overloaded.

Many gardeners use an 18-volt or 20-volt cordless drill, but voltage alone doesn’t tell the whole story. Drill design, torque, battery condition, soil type, and auger size all affect performance.

Helpful features include:

• Variable speed
• A low-speed, high-torque setting
• A fully charged battery
• A secure chuck
• A side handle for additional control
• A second battery for larger projects

Read the instructions for both the drill and the auger. Don’t use a bit that exceeds the drill manufacturer’s recommendations.

How to Use a Garden Auger

1. Mark the planting locations

Arrange your plants while they’re still in their pots, or mark each location with a flag.

Check the mature spacing before drilling. Plants may look small now, but overcrowding them will create more work later.

2. Check for underground utilities

Before starting a larger digging project, make sure you know where underground utilities, irrigation pipes, invisible fencing, landscape lighting wires, and drainage lines are located.

Calling 811 before digging is especially important when preparing deeper holes, installing posts, or creating a new landscape bed.

3. Check the soil moisture

Very dry, hard soil can be difficult to drill. Slightly moist soil is usually easier to work than soil that is bone dry or muddy.

When the ground is extremely dry, water the area ahead of time and allow the moisture to soak in.

Avoid using an auger in saturated soil. Wet clay may stick heavily to the bit and can become more compacted.

4. Set the auger in position

Place the tip where you want the center of the hole.

Hold the drill securely with both hands and keep your feet balanced. Begin at a slow speed so the auger can enter the soil without jumping sideways.

5. Let the auger do the work

Don’t force the bit downward.

Allow the spiral blade to pull itself into the soil. Lift it periodically to remove loosened dirt and keep the hole from becoming packed.

If the auger stops suddenly, release the trigger immediately. It may have struck a rock, thick root, buried object, or hard layer of soil.

6. Check the hole

Measure the hole against the plant’s root ball or required planting depth.

Widen or reshape it with a hand trowel or shovel when necessary. Don’t assume the auger automatically created the correct size.

7. Plant and water

Place the plant at the proper depth, return the loosened native soil around the roots, and gently firm it with your hands.

Water thoroughly after planting to settle the soil and remove large air pockets.

Using an Auger in Georgia Clay

Georgia clay can be challenging because it becomes hard when dry and sticky when overly wet.

When using an auger in clay:

• Work when the soil is slightly moist.
• Start at a slow drill speed.
• Lift the auger frequently to clear the soil.
• Remove packed clay from the spiral as needed.
• Stop immediately if the bit catches.
• Avoid creating a narrow, smooth-sided hole for shrubs.

An auger can loosen clay, but the sides of the finished planting hole may still need to be roughened with a shovel or hand tool. This helps prevent the hole from acting like a hard-sided container in the ground.

For a new flower bed, loosening a broader planting area may be better than drilling a separate narrow hole for every plant.

Safety Tips for Using a Garden Auger

A garden auger may look simple, but it can twist suddenly when it strikes something underground.

Use these safety precautions:

• Read the drill and auger instructions.
• Wear safety glasses.
• Wear sturdy, closed-toe shoes.
• Remove loose clothing and secure long hair.
• Hold the drill with both hands.
• Use a side handle when available.
• Begin at a slow speed.
• Keep children and pets away.
• Release the trigger immediately if the auger catches.
• Never reach toward a turning auger.
• Remove the battery before cleaning or adjusting the bit.
• Know where utilities and irrigation lines are located.

Don’t operate an auger when you’re tired or unable to maintain a balanced stance.

What to Do When the Auger Hits a Rock or Root

Never try to overpower a solid obstruction.

If the auger catches:

1. Release the drill trigger.
2. Remove the battery if you need to touch the bit.
3. Carefully lift the auger from the hole.
4. Remove loose rocks by hand or with a trowel.
5. Use a shovel or pruning saw for roots when appropriate.
6. Reposition the planting hole if the obstruction is too large.

Avoid cutting major tree roots simply to place another plant nearby. Large roots are important to the health and stability of the existing tree.

When a Garden Auger Is Not the Best Tool

An auger isn’t right for every planting project.

A shovel, digging fork, mattock, or professional equipment may be more appropriate when:

• Planting large trees
• Installing oversized shrubs
• Digging in extremely rocky ground
• Working around major tree roots
• Preparing a wide planting hole
• Removing established plants
• Digging near known utilities
• Creating a large new flower bed
• Working in soil filled with construction debris

An auger is most helpful when the job matches the size and capability of the tool.

Cleaning and Storing a Garden Auger

Cleaning the auger after use helps prevent rust and keeps dried clay from building up on the spiral.

After you finish:

1. Remove the auger from the drill.
2. Brush away loose soil.
3. Rinse off stubborn clay when necessary.
4. Dry the bit thoroughly.
5. Check for bends, cracks, or heavy wear.
6. Store it in a dry location.

Remove the drill battery before installing, removing, or cleaning the auger.

Garden Auger or Shovel: Which One Should You Use?

The right choice depends on the job.

Choose an auger for:

• Bulbs
• Annual flowers
• Vegetable seedlings
• Repeated small planting holes
• Small perennials
• Loosening compacted soil
• Starting larger holes

Choose a shovel for:

• Wide shrub holes
• Large root balls
• Trees
• Rocky ground
• Cutting clean bed edges
• Removing sod
• Shaping and widening holes

For many planting projects, the best approach is to use both. Let the auger loosen the soil, then use the shovel to create the proper width and shape.

Common Garden Auger Mistakes

Using an auger that is too large for the drill

A large auger can place more strain on the drill and your wrists. Match the bit to the tool’s capabilities.

Running the drill too fast

High speed can make the auger harder to control. Begin slowly and increase speed only when needed.

Forcing the auger into the ground

Excessive pressure can overload the drill or cause the bit to catch suddenly.

Digging a shrub hole that is too narrow

A shrub’s planting hole should allow the roots to spread outward. Widen the hole rather than planting the root ball in a tight cylinder.

Digging too deeply

Deeper is not always better. Planting too deeply can cause settling and reduce oxygen around the roots.

Ignoring underground lines

Irrigation pipes, utility cables, landscape lighting wires, and other buried lines can be damaged by an auger.

Using the auger in mud

Saturated soil can stick to the bit, compact easily, and become difficult to manage.

Is a Garden Auger Worth It?

A garden auger can be a worthwhile tool for gardeners who regularly plant bulbs, annual flowers, vegetables, perennials, or groups of smaller plants.

It may be especially helpful when:

• You create seasonal flower displays.
• You plant large numbers of bulbs.
• You frequently expand garden beds.
• Digging repetitive holes is physically tiring.
• You work with compacted soil.
• You want to reduce the time spent on planting.

It won’t eliminate every need for a shovel, but it can make many everyday planting jobs much easier.

Final Thoughts

A garden auger is a simple tool that can save time and reduce the repetitive work involved in planting.

Use it for jobs that match the auger’s size, choose a drill you can control safely, and always inspect the finished hole before adding the plant. For shrubs and trees, remember that healthy root growth requires a properly shaped hole—not just a quick, narrow opening in the ground.

When used correctly, an auger and a shovel make a good team. The auger loosens the soil, the shovel finishes the shape, and you get to spend less time digging and more time enjoying the garden.