Cedar Mulch
Aromatic, long-lasting mulch that naturally deters insects while enriching your garden beds.
What is Cedar Mulch?
Cedar mulch is made from the bark and wood of cedar trees, typically Eastern White Cedar or Western Red Cedar. The wood contains natural oils that give cedar mulch its distinctive aromatic scent and provide the material's unique benefits.
The natural oils in cedar, particularly thujone, have insect-repelling properties that make this mulch popular for gardens and landscapes. While not a complete insecticide, cedar mulch does discourage many common garden pests including ants, moths, and some beetles.
In Northumberland County, cedar mulch is a popular choice for its longevity and aesthetic appeal. It breaks down more slowly than hardwood mulches, meaning less frequent reapplication is needed. The reddish-brown color weathers to a pleasant silver-gray over time while still providing garden benefits.
Key Properties
- Insect resistant: Natural oils repel many pests
- Long lasting: Decomposes slowly
- Aromatic: Pleasant cedar scent
- Color stability: Fades gracefully to silver-gray
- Lightweight: Easy to spread and work with
Quick Facts
| Material Source | Cedar bark and wood |
| Decomposition | Slow (2-3 years) |
| Best For | Insect-prone areas |
| Application Depth | 2-3 inches |
| Color | Red-brown to silver |
Calculate Mulch Needs
Use our calculator to determine exactly how much cedar mulch you need for your garden beds.
Mulch Calculator âCommon Uses for Cedar Mulch
Flower Beds
Excellent for perennial and annual flower beds. The insect-repelling properties protect delicate blooms from pests.
Tree Rings
Create attractive mulch rings around trees. Slow decomposition means less frequent maintenance around established trees.
Pathway Edges
Use along garden path edges where you want a neat appearance with natural pest control benefits.
Shrub Beds
Ideal for foundation plantings and shrub borders. Long-lasting color maintains curb appeal throughout the season.
Bug-Prone Areas
Use near outdoor living spaces where ants and other insects are unwelcome. Natural oils help deter pests.
NOT For Vegetable Gardens
The natural compounds may inhibit seedling growth. Use compost or straw mulch in vegetable gardens instead.
Application Tips
1. Proper Depth
Apply cedar mulch 2-3 inches deep. Too shallow and it won't suppress weeds effectively; too deep and it can prevent water from reaching soil.
2. Keep Away from Stems
Always keep mulch 2-3 inches away from plant stems and tree trunks. "Mulch volcanoes" trap moisture against bark and can cause rot.
3. Weed Barrier
While cedar mulch suppresses weeds, it's not perfect. Consider landscape fabric underneath for problem areas, though fabric can prevent beneficial soil improvement.
4. Refresh Annually
While cedar mulch lasts longer than hardwood, a light top-dressing each spring maintains appearance and effectiveness. You don't need to remove old mulch first.
5. Water Before and After
Water garden beds thoroughly before mulching to lock in soil moisture. Light watering after application helps settle the mulch in place.
â Insect Benefits
Cedar mulch naturally repels ants, termites, cockroaches, and clothing moths. It's particularly effective around foundations and outdoor living areas.
Where to Buy Cedar Mulch in Northumberland County
Cedar mulch is widely available throughout the region:
- Landscape supply centers
- Garden centers and nurseries
- Home improvement stores
- Mulch specialty suppliers
Note: We do not sell materials. Contact local suppliers for current pricing and availability.
â ïļ Consideration
Cedar mulch acidifies soil as it decomposes. This benefits acid-loving plants like rhododendrons and blueberries but may need monitoring for other plants.
Cedar Mulch vs Other Mulches
| Feature | Cedar Mulch | Hardwood Mulch | Pine Mulch |
|---|---|---|---|
| Longevity | 2-3 years | 1-2 years | 1-2 years |
| Insect Repellent | Yes | No | No |
| Scent | Pleasant aromatic | Earthy | Mild pine |
| Cost | Higher | Moderate | Lower |
| Soil Enrichment | Low | High | Moderate |