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Gardeners use mulch as a protective covering to shade the soil, keep it moist, reduce erosion, and suppress weeds. It keeps gardens looking tidy, especially where plants are further apart. Below are a few questions about mulching to help new gardeners acquire the basics.

Mulch Basics for New Gardeners

Which type should you buy?

Experienced gardeners will advise you to choose a fine- to medium-grained mulch. It should also be an organic substance, such as shredded hardwood, bark, pine needles, or ground-up leaves. Many prefer dark-colored mulches to match the color of organic-rich soil, but you should avoid color-treated varieties. The dyes may be soil-safe, but if the mulch comes from recycled wood scrap—such as warehouse pallets—undesirable chemicals may leach into the earth. Aged and composted organic mulches will break down faster and improve the soil’s structure as they decay.

You may prefer stone to an organically derived mulch, which decomposes over time, in locations where permanent cover is desirable. However, you should avoid mulch that comes from plastics or tires, as they can also break down into harmful chemicals.

When should you apply it?

gardenLay down mulch in spring or early summer after the ground begins to warm. You may need to replenish it throughout the growing season if bare spots emerge. Each spring, if it decomposes sufficiently, mix last season’s supply into the soil. If not, rake it away before applying a new layer.

In zones with harsh winters, mulch can insulate perennials from the cold. Wait until your plants die, and the ground freezes, before applying a thin layer for protection. You don’t want to smother plants in your garden or over-warm them with the winter mulch.

How much should you spread?

An even layer of mulch two to three inches thick should suffice. After pulling up any weeds, use a rake and your hands to apply it, and water it in to set it into place. Never let mulch become overly compact, as it can restrict water flow and oxygen. Keep an eye on its condition, and use a garden claw to loosen matted mulch and allow air and water to penetrate the surface.

What about fungus?

Moisture in wood-based mulch creates an ideal environment for fungus to grow if the temperature is right. However, it’s not necessary to apply a fungicide to remove it. Simply use a trowel to lift it up and out, discarding it. If you only turn it over with a spade, the fungus will return. Fungus won’t harm your plants, but it’s unsightly in a well-tended bed.

 

Northgate Greenhouses supplies a diverse and distinct mix of herbs, flowering annuals and perennials, succulents, vegetables, fruits, and seasonal bloomers across the Greater Cincinnati, OH, area. You will love the beauty and healthy plants they grow on their impressive premises. Visit them online to shop by product category, or call (513) 729-1134 to discuss options for gifts to delight both new and experienced gardeners.

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