If you’re working on your yard in Washington, NJ, chances are you’ve run into the age-old landscaping question: Should I use fill dirt or topsoil? At first glance, they might look similar—but trust us, there’s a world of difference between the two. And picking the right one can make or break your next outdoor project.
As your go-to source for landscaping supplies in Warren County, we at Kirk Allen Landscape Supply have helped hundreds of local homeowners figure out the best materials for their property. Whether you’re leveling out a yard near Route 31 or prepping a garden bed just a few blocks from downtown Washington, this guide will help you make a confident, informed choice.
Why This Matters in Washington, NJ
If you’ve lived in Washington for a while, you know the terrain here can be a mixed bag. From sloped yards to rocky soil, local homeowners face unique challenges that make choosing the right landscape material even more important. One weekend you’re planting shrubs along Belvidere Avenue, and the next you’re filling in a sunken patch of lawn by the park on Broad Street.
Add in our sometimes unpredictable New Jersey weather, and the right base material can help protect your yard from erosion, flooding, and uneven settling. Whether you’re working on a small DIY weekend project or tackling a bigger landscaping overhaul, knowing when to use fill dirt vs. topsoil can save you time, money, and frustration.
What is Fill Dirt (and When Should You Use It?)
Let’s start with the basics. Fill dirt is the earthy material found beneath the top layer of soil. It doesn’t contain organic matter like plants or decomposed leaves—which means it’s dense, compact, and doesn’t break down over time.
This makes fill dirt perfect for:
Leveling land (like that tricky hill in the backyard)
Backfilling around foundations or retaining walls
Raising low spots that collect standing water
Creating solid bases for patios, walkways, or sheds
Here in Washington, we’ve had quite a few homeowners come in for Screened Fill or basic Fill from Kirk Allen Landscape Supply after realizing their new patio was sinking due to soft soil. Lesson learned: build the base first with solid material, then finish it off with topsoil for planting or grass seeding.
Best Products for Fill Projects:
Fill
Screened Fill
Q-P Grey (for hardscaping base support)
Stone Dust (under pavers or walkways)
What is Topsoil (and Why It’s a Gardener’s Best Friend)
Now, if fill dirt is the sturdy workhorse, topsoil is the nutrient-rich superstar. It’s the uppermost layer of soil where plants grow best. Packed with organic matter, it holds moisture well and provides the nutrients your lawn, flowers, and veggies need to thrive.
In Washington, where gardening is a favorite hobby—especially during spring festivals or farmer’s market season—topsoil plays a big role in planting success. Whether you’re sprucing up flower beds along your driveway or starting a raised vegetable garden, you’ll want to use Top Soil to ensure healthy root growth.
You’d be surprised how many folks swing by our lot off Route 57 and say, “I just need some dirt.” Once we chat and learn they’re planting a new row of arborvitae or refreshing a lawn, it’s clear that topsoil, not fill dirt, is what they really need.
Ideal Uses for Topsoil:
Garden beds and flower borders
Topdressing lawns
Planter boxes and raised beds
Seeding or sodding grass
Top Picks at Kirk Allen:
Top Soil
Del. River Blend (for decorative borders or drainage)
Pea Gravel (to complement flower beds or walkways)
Dyed Mulch or Hardwood (for added moisture retention and curb appeal)
How to Know Which One You Need
The trick to deciding between fill dirt vs. topsoil comes down to one thing: what are you building or growing? Here’s a quick cheat sheet:
| Project Type | Best Material |
|---|---|
| Leveling ground | Fill or Screened Fill |
| Planting flowers or veggies | Top Soil |
| Base for pavers or patios | Fill + Stone Dust |
| Repairing lawn depressions | Fill base + Top Soil top layer |
| Building a berm or slope | Fill for core, Top Soil for surface |
And of course, if you’re ever unsure, just give us a call or stop by—locals know Kirk Allen Landscape Supply is always happy to help guide you based on your specific project.
Washington, NJ Landscaping Tip: Layer Smart
One of the most overlooked tricks in landscaping? Layering fill dirt and topsoil correctly.
We recently worked with a family near Hawk Pointe Golf Club who wanted to raise a portion of their backyard. We delivered Screened Fill to bulk up the area, followed by a layer of rich Top Soil so they could seed grass before summer. The results? A perfectly level, lush green lawn in just a few weeks.
Layering like this helps prevent settling and ensures long-term success for grass and plants. Just remember: never plant directly in fill dirt. Your plants will struggle—and your time and money will go to waste.
Support Local—Get Your Supplies from Kirk Allen
When it comes to landscaping materials in Washington, NJ, you don’t need to drive far or settle for second-rate soil. At Kirk Allen Landscape Supply, we stock only the best quality materials, hand-picked to meet the needs of our local climate and soil types.
We’re not just here to sell you dirt—we’re here to help you succeed. Whether you’re a seasoned landscaper or a first-time DIYer, we’ll make sure you leave with the right materials and the right advice.
Why Choose Kirk Allen?
Locally trusted since day one
Wide variety of premium materials including Top Soil, Fill, Stone Dust, Gravel, and Mulch
Delivery available throughout Washington and surrounding areas
Knowledgeable staff ready to answer your questions
Ready to Start Your Project?
No matter what you’re planning, having the right foundation makes all the difference. If you’re unsure where to start—or if you want expert advice—reach out to Kirk Allen Landscape Supply today.
📍 Located near Washington, NJ
📞 Call us at +1 973-347-3117
Stop by, give us a call, or send in a request. We’re happy to help you get your hands dirty—the right way.
