The best ground covers to replace mulch depend on your local sun exposure and foot traffic. For full sun and occasional walking, Creeping Thyme provides a fragrant, blooming alternative. In dry shade or under trees, Pachysandra creates a dense evergreen carpet that chokes out weeds.
While creeping phlox is a beautiful, low-maintenance ground cover, its main downsides are a short, 3-to-4 week bloom time, vulnerability to fungal diseases like powdery mildew in damp conditions, and a susceptibility to spider mites in hot, dry weather. It also does not handle heavy foot traffic well.
🍁 Mid-Fall (Late September – October)
This is the ideal window for insulating your plants and protecting soil before winter. By now, soil has cooled but hasn't frozen, making it the right time to apply mulch for root insulation.
Thymus serpyllum is the ultimate low-maintenance ground cover. It doesn't require mowing, is loaded with delightful flowers, is nicely drought-tolerant, and is resistant to many pests and diseases. It's even happy in soil conditions where other plants might not thrive.
Mulch alternatives fall into three main categories: organic materials, inorganic materials, and living ground covers. The best choice depends on whether you are looking for long-term durability (like rocks or rubber), soil-enriching fertility (like compost or leaves), or aesthetic beauty.
The best ground covers to replace mulch act as a "living mulch," suppressing weeds, retaining soil moisture, and preventing erosion. The ideal choice depends on your local climate and sun exposure.
The 3-3-3 rule is a widely used landscaping guideline that ensures trees get the benefits of mulch—like moisture retention and temperature insulation—without inviting pests, root rot, or disease.
Some types of no-mow grass alternatives include clover, wildflowers and native plants, moss, groundcovers, succulents, and xeriscaping. Many of these options are also low-maintenance when it comes to things like fertilization and watering.
The absolute fastest-growing ground covers include Creeping Thyme, Creeping Phlox, and Dichondra. These plants can spread quickly and establish dense, green mats within a single growing season.
Yes, several dense, fast-spreading ground covers can outcompete and naturally choke out weeds. They work by spreading quickly to form a tight mat or canopy that blocks sunlight from reaching the soil, preventing weed seeds from germinating.
Fall mulching preserves heat that will keep microbes, earthworms, and other life active and thriving in the soil longer to improve the soil condition. The insulation mulch provides will also help moderate temperature swings that can damage tender roots, especially those of newly planted plant material.
In most cases, no — you do not need to remove all of your old mulch before adding new. If the existing layer is still in reasonable condition, raking it to break up any compaction and topping it off with one inch of fresh material is the smarter, more efficient approach.
Whenever you mulch the same rules apply: use a well-rotted organic material such as mushroom compost, garden compost or bark chips (we use pine bark on the grass borders for a little extra acidity) and be generous with it.
In the winter, creeping phlox typically looks like a dormant, low-lying mat of dry, mossy foliage. Because its hardiness ranges across different climates, its exact winter appearance varies slightly:
Creeping Thyme (Thymus serpyllum)
Creeping thyme (also known as mother of thyme or wild thyme) is a creeping, woody-stemmed perennial that is a favorite plant to use for a low-maintenance ground cover serving as a filler between garden stepping stones.
Kudzu (Pueraria montana) is widely considered the most invasive ground cover, famously known as "the plant that ate the South". It grows up to 1 foot per day, blanketing everything in its path and killing trees and native vegetation. Several other aggressive, fast-spreading ground covers pose severe threats to ecosystems:
To get my ground covers started off on the right foot, I plant them in spring or early summer so they have a chance to root well and are less likely to heave out of the ground in winter. I make sure to take time to assess the conditions of my site and prepare the soil before planting.
Mondo Grass
For the look of lawn grass, but not the upkeep, mondo is your plant. Also called lilyturf, it forms blankets of deep green, grass-like foliage from 6 to 8 inches tall that stay green year-round. Mondo grass spreads by underground rhizomes.
The best alternative to mulch depends on your goals—whether you want low maintenance, better soil health, or aesthetic permanence. The top options include:
Ten bags of standard 2-cubic-foot mulch cover approximately 60 square feet at 3 inches deep (the standard recommended depth for preventing weeds and retaining moisture).
Never pile mulch directly against tree trunks, plant stems, or house siding, as trapped moisture leads to rot and attracts pests. Avoid placing it in low-lying, waterlogged areas, over freshly seeded beds where plants need sunlight to germinate, or right before heavy rainfall to prevent it from washing away.
The best thing to put around the base of a tree is a 2 to 4-inch layer of organic mulch, such as shredded bark, wood chips, or compost. It retains soil moisture, regulates temperature, suppresses weeds, and adds vital nutrients back into the soil as it naturally breaks down.