Home & Garden Living — printable project guide
How to Mulch a Garden Bed
Beginner · 2–4 hours · $40–$200 · Outdoor · Updated July 24, 2026
Shopping & prep checklist
Materials
- Mulch — yards/bags from calculator
- Tarp for the delivery pile
- Edging material (optional)
Tools
- Wheelbarrow or garden cart
- Bow rake
- Flat shovel or mulch fork
- Half-moon edger or flat spade
- Garden gloves
- Hose or watering can
Before you spread
- All beds measured and calculator run
- Weeds pulled from every bed
- Bed edges recut
- Soil deeply watered
- Delivery spot cleared (bulk orders)
Required tools
Wheelbarrow · Bow rake · Garden gloves · Flat shovel or mulch fork · Garden hose · Half-moon edger (optional)
The steps
1. Measure your beds
Measure each bed's length and width (or diameter for circles) and decide your depth: 2 inches for refreshing existing mulch, 3 inches for bare or weedy beds. Run the calculator above per bed and add the volumes together.
Tip: Pace it off if you don't have a tape — an adult stride is roughly 2.5 feet, close enough for mulch.
2. Choose bags or bulk
Under one cubic yard, buy bags. Over one yard, price a bulk delivery — it's usually 30–40% cheaper per yard. Have bulk mulch dumped on a tarp in the driveway; it keeps the last shovelfuls clean and the cleanup takes one pull.
3. Weed and edge the bed
Pull or hoe every weed first — mulch suppresses new weeds but happily blankets existing ones, which then grow through. Recut the bed edge with a half-moon edger or flat spade for a crisp trench about 3 inches deep; that trench is what keeps mulch off the lawn.
4. Water the soil
Give the bed a deep watering before mulching. Mulch is excellent at holding moisture in — and equally good at keeping a light rain from ever reaching dry soil beneath it. Trap moisture, not drought.
5. Spread in piles, then rake
Wheelbarrow mulch into several small piles across the bed, then spread with the back of a bow rake to an even depth. Work backward toward your exit so you're not trampling finished areas.
Tip: Cut a stick at 3 inches and poke it through the mulch as you go — a depth gauge beats eyeballing.
6. Pull back from every stem
Clear a 2–3 inch gap around perennial stems and shrubs, and a 6-inch gap around tree trunks with the mulch tapering up to full depth — a donut, never a volcano. Mulch against bark holds moisture that rots trunks and shelters voles that girdle them.
7. Water the finished bed
A light final watering settles the mulch so the first wind doesn't scatter it, and starts the wicking contact between mulch and soil. Step back and admire — this is the best your yard looks all year.
Budget lines
| Item | Typical cost | Actual |
|---|---|---|
| Bulk hardwood mulch (per cubic yard, delivered) | $35–$60 | $______ |
| Bagged mulch (per 2 cu ft bag) | $3.50–$6 | $______ |
| Edging (optional, per 20 ft) | $15–$40 | $______ |
| Gloves, if you need them | $10 | $______ |
Safety reminders
- Lift with your legs and keep wheelbarrow loads modest — mulch jobs are marathon lifting, and backs fail on the twentieth load, not the first.
- Wear gloves: fresh mulch can harbor splinters and, rarely, irritating molds. If a pile steams and smells sour, let it air out a day before spreading.
- Keep mulch 6 inches clear of siding and never against untreated wood — it's a moisture bridge and a termite highway.
- Hydrate and pace summer mulching; it's heavier cardio than it looks.
Full interactive guide with calculator: https://homeandgarden.living/projects/mulch-a-garden-bed