Cedar mulch is a known favorite of gardeners and landscapers because it looks good while also having that pleasant cedar smell, natural insect repellent and longevity. But even with the best ingredients, a sorry sight of potted plants can result from misuse. At Cambridge Garden Centres, we are dedicated to helping you make the most of your outdoor living space. Here are five mistakes not to make — and how to avoid them if you decide cedar mulch is for you.
1. Applying Too Much Mulch
It can be tempting to lay it on thick, for a deep and luxurious layer of mulch, but more isn’t always merrier. Too much mulch will smother plant roots, hold too much moisture and lead to root rot.
Tip: For garden beds, wait and stick to a 2–3 inch layer of cedar mulch. Around trees and shrubs, slope the mulch—thicker toward the edges of a planting bed (and thinner in the middle) so as not to ride up along stems.
2. Placing Mulch Too Close to Plant Stems or Tree Trunks
Mulch mounded up against stems or trunks can hold moisture and provide a place for disease, pests and rot to fester.
Tip: Always leave a few inches open around plant bottoms and tree bases. This allows for good air movement and prevents rot.
3. Skipping Weed Control Before Mulching
Cedar mulch for weed control works as a deterrent to unwanted plants, but if you spread it directly over an existing layer of weeds, those unwelcome guests can thrive even beneath all that wood.
Tip: Remove all existing weeds from around the area where you plan to put down mulch. For added insulation, spread a layer of landscape fabric underneath the mulch.
4. Not Replenishing Mulch Annually
Cedar mulch is typically longer lasting than other types, but it does deteriorate over time. “Because of sun, rain and wind exposure, it will wear out over time.”
Tip: Keep an eye on your mulch depth every spring and fall. Top up with a layer when it starts to get thin, but there is no need to pile it on too thick.
5. Using Mulch with Poor Drainage Soil
Cedar mulch holds moisture — good for dry soil, not so much on already soggy or clay-heavy ground that could get your roots too wet.
Tip: Cedar mulch should be used on soil that drains well. For areas that drain poorly, either amend the soil with compost or use less mulch.
Final Thoughts
Cedar Mulch has many advantages, including Pest Control, Moisture Retention, and Weed Suppression. But using it properly is key to cashing those benefits in. Steering clear of these frequently made mistakes can help ensure your garden stays healthy, beautiful and low-maintenance all year.
Looking for help deciding which mulch or supplies? Come to Cambridge Garden Centre for good advice, sound products and all you need to grow.
Please stop by today or contact our garden experts to find out more about how cedar mulch can be the perfect addition for your yard.