Which Type of Mulch is Best for Your Washtenaw County Landscaping Project

Mulch plays a crucial role in landscaping and playground safety, but not all mulches are created equal. In Washtenaw County, Michigan, two types of mulch are commonly used for different purposes: Organic Mulch and Certified Playground Mulch. Let's explore the key differences between these two types and their specific applications in our local community.

Organic Mulch: Nature's Nurturing Layer

Organic mulch is derived from natural materials that decompose over time, enriching the soil and improving overall landscaping. In Washtenaw County, popular Organic Mulch options include:

• Wood chips
• Pine bark
• Hardwood bark
• Compost
• Rubber mulch
• Chipped and colored pallet mulch
• Stones or ornamental rocks

These materials offer several benefits for landscape beds and tree rings:

1. Soil Enrichment: As Organic Mulch breaks down, it releases nutrients into the soil, enhancing soil structure and fertility.
2. Moisture Retention: A layer of Organic Mulch helps retain soil moisture by reducing evaporation, which is particularly beneficial during Michigan's hot summers.
3. Weed Suppression: A 2-4” thick layer of Organic Mulch inhibits weed growth by blocking sunlight and preventing weed seeds from germinating.
4. Environmental Friendliness: Organic Mulches are biodegradable, making them ideal for sustainable landscape practices in environmentally conscious Washtenaw County.
5. Cost-Effective: Organic Mulch is often more affordable and readily available than other choices, making it a popular choice for homeowners and landscapers in the area.

However, Organic Mulch does have some drawbacks. It breaks down over time and may need more frequent replacement compared to rocks or inorganic alternatives.

Certified Playground Mulch: Safety First

Certified Playground Mulch, also known as Engineered Wood Fiber (EWF), is specifically designed for use in playgrounds and meets rigorous safety standards. In Washtenaw County, where safety is a top priority for schools, parks, daycare centers and recreational areas, Certified Playground Mulch offers several advantages:

1. Safety Compliance: Certified Playground Mulch meets the standards set by organizations like the International Play Equipment Manufacturers Association (IPEMA) and the American Society for Testing and Materials (ASTM).
2. Shock Absorption: EWF provides excellent impact attenuation, reducing the risk of severe injuries from falls on playgrounds.
3. Accessibility: When properly installed and maintained, Certified Playground Mulch can create a firm, stable surface that allows for wheelchair accessibility, making playgrounds more inclusive.
4. Durability: Certified Playground Mulch is engineered to resist decay and degradation, ensuring long-lasting performance in Michigan's varied climate.
5. Low Maintenance: Compared to traditional mulch, certified playground mulch requires less frequent replenishment, reducing maintenance costs for local schools and parks.

The depth of certified playground mulch is crucial for safety. The Consumer Products Safety Commission (CPSC) recommends different depths based on equipment fall heights:

• 6 inches for fall heights under 10 feet
• 8 inches for 10-foot fall heights
• 10 inches for fall heights up to 12 feet
• 12 inches for fall heights up to 14 feet

Local Considerations

In Washtenaw County, the choice between Organic Mulch and Certified Playground Mulch often depends on the specific application. For general landscaping, Organic Mulch is preferred due to its environmental benefits and soil-enriching properties. However, for playgrounds, schools, and public parks, Certified Playground Mulch is the go-to choice to ensure safety and compliance with local regulations.

In conclusion, while Organic Mulch and Certified Playground Mulch serve different purposes, both play essential roles in maintaining the beauty, safety, and functionality of Washtenaw County's diverse landscapes and recreational areas. By understanding the unique properties of each type, residents, landscape companies and facility administrators can make informed decisions to best serve their specific needs and contribute to the community's well-being.