How to Mulch Beds Refresh
Mulch breaks down over time, fading to gray and losing its moisture-retention and weed-suppression benefits. This annual landscape maintenance involves removing weeds from garden beds, edging for a clean line, removing excessively decomposed old mulch, and adding fresh mulch to restore the 2-3 inch depth that provides optimal benefits. Fresh mulch instantly improves curb appeal, retains soil moisture reducing watering needs by 25-50%, suppresses weeds, and protects plant roots from temperature extremes.
Cost to Skip This Task
Risk $50 – $300 in repairs
Why It Matters
Mulch retains soil moisture (reducing watering by 25-50%), suppresses weeds, regulates soil temperature, and improves soil quality as it decomposes. It also gives beds a polished appearance. Refresh annually in spring after plants emerge. Maintain 2-3 inches depth—more promotes mold and pest problems. Keep mulch 6 inches away from the house foundation and 3 inches from plant stems and tree trunks.
Safety First
- Keep mulch 6 inches away from house siding to prevent moisture damage
- Do not pile mulch against tree trunks (causes rot)
What You'll Need
Tools
- Wheelbarrow$60
- Garden rake$15
- Edging tool$20
Supplies
- Mulch (bags or bulk delivery)$50
Step-by-Step Instructions
Before You Start
Calculate how much mulch you need: measure bed area in square feet and plan for 2-3 inches of depth. One cubic yard covers about 100 sq ft at 3 inches deep.
- 1
Pull any weeds from garden beds before mulching
- 2
Edge beds for a clean line between mulch and lawn
- 3
Remove any old mulch that has turned gray or broken down significantly
- 4
Spread new mulch evenly to 2-3 inches depth
Do not exceed 3 inches - too much mulch smothers plant roots and holds excess moisture
- 5
Keep mulch 3-6 inches away from plant stems and tree trunks
- 6
How to Verify Success
Beds have even 2-3 inch mulch layer. Clean edges. No mulch touching stems, trunks, or siding.
When to Call a Professional
- You need many cubic yards delivered and spread (bulk mulch + delivery $30-50 per yard, spreading service $50-100 per hour)
- Beds need significant weeding or renovation first (bed renovation $200-500 depending on size)
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