The photo at the top of this post is our neighbour’s yard.
They watched us out working on jobs around the area and one day asked if we could help them with their garden. We could. We did. Now we get to enjoy that beautiful space with them every time we look out the window. Running a family business on Vancouver Island means you bump into your customers at the grocery store, and sometimes one of them lives next door. That’s one of the things we love about doing this work.
Their project came down to a question we get asked all the time: what material do I actually need?
Topsoil, fill, and mulch look similar at a glance. They are not the same thing. Order the wrong one and you either waste money, kill plants, or both.
Here is how to tell them apart.
Topsoil is for growing things
The dark, organic-rich top layer of soil. It holds water, feeds plants, and supports the microbiology a healthy garden needs.
Use topsoil for:
- Refreshing garden beds before planting
- Lawn repair and overseeding
- Filling raised beds (mixed with compost)
- Levelling shallow low spots where you want grass
Do not use topsoil for:
- Deep fill more than 6 to 8 inches (it compresses and settles)
- Under patios, walkways, or driveways
- Backfill around foundations
A note on Vancouver Island soil. Most properties around Parksville and Qualicum Beach have thin topsoil sitting on clay or sand. Adding screened topsoil to garden beds makes a real difference, especially for vegetables and anything that needs to root deep.
Quantity rule of thumb: one cubic yard covers about 100 sq ft at 3 inches deep.
Fill is for structure
Subsoil. Clay, sand, gravel, or a mix, with very little organic content. “Clean fill” just means no debris or contaminants.
Use fill for:
- Raising grade before applying topsoil
- Backfilling around foundations and retaining walls
- Building up low areas where nothing will be planted
- Driveway base repair
Do not use fill for:
- Garden beds
- Anywhere you want plants
The layering principle. When a project needs both height and planting, the sequence is fill, compact, then topsoil on top. Fill builds the structure. Topsoil grows the plants. Skip the fill and you pay for expensive topsoil that settles. Skip the topsoil and your plants struggle.
Mulch is for protection
Wood chips, bark, shredded leaves, or straw, spread on the surface around plants.
Use mulch for:
- Holding moisture through dry summer stretches
- Suppressing weeds
- Keeping roots cooler in summer and warmer in early spring
- Improving soil over time as it breaks down
- Making beds look finished
Do not use mulch for:
- Filling or raising grade
- Stuffing right up against trunks and stems (keep it 2 to 3 inches back)
- A replacement for topsoil
Why mulch matters here. Vancouver Island summers run dry after a wet spring. A 3 to 4 inch mulch layer applied in March or April keeps moisture in the soil through July and August and cuts how often you need to water.
Quick reference
| Material | Grows plants? | Structural fill? | Surface dressing? |
|---|---|---|---|
| Topsoil | Yes | No | For lawn areas |
| Fill | No | Yes | No |
| Mulch | Improves conditions | No | Yes, around beds and trees |
What to order in common scenarios
“I’m refreshing my garden beds before planting.” Topsoil. Two to three inches over the existing soil, mix lightly, plant.
“I have a low spot that holds water.” Fill if it stays unplanted. Topsoil if you want grass. Both if the dip is deep: fill to near grade, topsoil on top.
“I’m building a raised bed.” Topsoil with compost. Fill won’t grow anything.
“I’m installing a patio.” Granular base (road crush). Neither fill nor topsoil compacts properly under hardscape.
“I want my beds to look good and not dry out.” Topsoil to add growing medium if needed, then mulch on top as the finish layer.
“I had excavation done. Now I need to fill the hole.” Fill for depth. Topsoil for the top 6 inches if planting goes in.
Ordering and delivery
We deliver topsoil, gravel, road crush, and mulch across Central Vancouver Island: Parksville, Qualicum Beach, Nanaimo, Nanoose Bay, and Bowser. If you also need old material hauled out, we can do that on the same trip.
Get a material delivery quote or call us at 778-909-9874. We will confirm what you actually need before anything gets ordered.