What to Plant to Cover the Side of a Ditch

An unsightly, barren ditch can be more than just an eyesore; it can be a source of significant soil erosion, reducing property value and contributing to runoff issues. Left uncovered, the exposed soil is vulnerable to the forces of wind and water, leading to a degraded landscape. Fortunately, a strategic approach to planting can transform these functional yet often neglected landscape features into beautiful, stable, and ecologically beneficial elements of your property. Choosing the right vegetation is crucial, as it provides a natural barrier against erosion, enhances curb appeal, and can even create valuable habitat for local wildlife. This article will delve into effective plant selections and planting strategies to cover and stabilize the sides of a ditch, turning a problem area into a flourishing asset.

Understanding the ditch’s environment and your goals

Before selecting any plants, it is paramount to thoroughly assess the specific conditions of your ditch. Every ditch presents a unique microclimate and set of challenges that will dictate which plants will thrive. Ignoring these environmental factors can lead to wasted effort and failed plantings.

  • Sunlight exposure: Observe how much direct sunlight the ditch sides receive throughout the day. Is it full sun (6+ hours), partial shade (3-6 hours), or deep shade (less than 3 hours)? This is arguably the most critical factor for plant survival.
  • Soil type and moisture: Dig into the soil to understand its composition. Is it heavy clay, sandy, loamy, or rocky? More importantly, how wet does it get? Some ditches are consistently damp or even waterlogged, while others are dry for long periods and only see water during rainfall events. Plants that tolerate “wet feet” are essential for consistently moist conditions, whereas drought-tolerant species are needed for drier ditches.
  • Slope angle: Steeper slopes are more prone to erosion and require plants with robust, deep, or mat-forming root systems. Gentler slopes offer more flexibility in plant choice.
  • Water flow: Is the water flow intermittent and slow, or is it a fast-moving torrent during heavy rains? Plants need to be resilient enough to withstand the force of flowing water without being washed away.
  • Your primary goals: Are you prioritizing maximum erosion control, aesthetic appeal, attracting pollinators, low maintenance, or a combination of these? Defining your goals will narrow down plant choices considerably.

Matching plants to these conditions will ensure their success and the long-term stability of your ditch.

Erosion control champions: deep-rooted plants

The primary function of planting in a ditch is often to prevent soil erosion. For this, plants with extensive, deep, or fibrous root systems are invaluable. These roots act as natural rebar, binding the soil particles together and making them resistant to being washed away by water or blown by wind.

Here are some top contenders for robust erosion control:

  • Grasses: Many grasses are excellent for stabilizing soil due to their dense, fibrous root systems.
    • Vetiver Grass (Chrysopogon zizanioides): Known as a “miracle grass” for erosion control, vetiver develops extremely deep (up to 13 feet) and dense root systems that act like a living retaining wall. It tolerates a wide range of soil types and moisture levels once established.
    • Switchgrass (Panicum virgatum): A native North American prairie grass, switchgrass forms dense clumps with deep, fibrous roots. It’s adaptable to various conditions, including wet and dry soils.
    • Fescue (e.g., Tall Fescue, Creeping Red Fescue): These turf-forming grasses create a dense mat of roots close to the surface, effective for moderate slopes and common in many landscapes.
    • Liriope (Liriope muscari, L. spicata): Also known as lilyturf, this grass-like perennial forms a thick, spreading root system that holds soil well, especially on shadier slopes. L. spicata is more aggressive and better for larger areas.
  • Groundcovers: These plants spread horizontally, creating a living carpet that protects the soil surface.
    • Creeping Sedum (Sedum album, Sedum spurium): Succulent groundcovers that are incredibly drought-tolerant and can thrive in poor, rocky soils on sunny slopes. Their shallow, spreading roots form a dense mat.
    • Vinca Minor (Periwinkle): A vigorous evergreen groundcover with rooting stems that quickly spread, providing excellent soil stabilization in partial to full shade. Be aware it can be aggressive.
    • Creeping Thyme (Thymus serpyllum): Forms a low, dense mat with shallow roots, suitable for sunny, drier slopes where some foot traffic might occur. It also releases a pleasant fragrance.
  • Shrubs and small trees: For larger ditches or steeper slopes, woody plants offer more substantial, long-term stabilization.
    • Dwarf Willows (e.g., Salix purpurea ‘Nana’): Many willow species are known for their extensive root systems and ability to thrive in wet conditions. Dwarf varieties are manageable for ditch banks.
    • Red Osier Dogwood (Cornus sericea): A wetland-loving shrub that sends out roots along its stems where they touch the ground, forming dense thickets that are excellent for erosion control, especially in moist areas.
    • Elderberry (Sambucus canadensis): A fast-growing shrub that tolerates wet soils and provides good root mass for stabilization.

When selecting these plants, consider native species first, as they are adapted to local conditions and provide optimal ecological benefits.

Aesthetics and biodiversity: blending function with beauty

While erosion control is often the primary concern, a well-planted ditch can also be a beautiful landscape feature and a vital hub for local biodiversity. By incorporating flowering plants, ferns, and native species, you can transform a utilitarian space into a vibrant ecosystem.

Consider these additions for both beauty and ecological benefit:

  • Flowering Perennials: These plants add color and attract pollinators like bees and butterflies, enriching the local ecosystem.
    • Bee Balm (Monarda didyma): A vibrant native perennial that thrives in moist, sunny conditions, attracting hummingbirds and bees. Its spreading habit helps with some soil stabilization.
    • Coneflowers (Echinacea purpurea): Drought-tolerant once established and excellent for attracting butterflies. They prefer full sun and well-drained soil.
    • Asters (Symphyotrichum spp.): Late-season bloomers that provide crucial nectar for pollinators preparing for winter. Many varieties tolerate various light conditions.
    • Coreopsis (Coreopsis spp.): Cheerful, long-blooming flowers that are relatively drought-tolerant and prefer full sun.
  • Ferns: Ideal for shadier, moister ditches, ferns offer lush green texture and a sense of woodland tranquility.
    • Ostrich Fern (Matteuccia struthiopteris): A tall, elegant fern that spreads by rhizomes, creating dense colonies that help stabilize soil in consistently moist, shady areas.
    • Royal Fern (Osmunda regalis): A large, stately fern that prefers wet to consistently moist soil and can tolerate some sun if moisture is ample.
    • Cinnamon Fern (Osmundastrum cinnamomeum): Another moisture-loving fern that forms impressive clumps and provides good ground cover.
  • Specific Considerations for Blending Function and Beauty:
    • Native Species: Prioritize plants native to your region. They are naturally adapted to local climate and soil conditions, require less maintenance, and provide the best support for local wildlife.
    • Drought Tolerance vs. Wet Feet: Always double-check the moisture requirements. Some plants prefer consistently moist conditions (like dogwoods and willows), while others thrive in dry, well-drained soils (like sedum and coreopsis).
    • Deer Resistance: If deer are prevalent in your area, select plants known to be less palatable to them to prevent damage.

By thoughtfully combining plants for erosion control with those that offer aesthetic appeal and ecological value, you can create a truly multi-functional and beautiful ditch landscape.

Practical planting and maintenance tips

Once you’ve selected your plants, proper planting techniques and ongoing maintenance are crucial for their establishment and long-term success. A little care in the beginning will yield significant rewards.

1. Site Preparation:

  • Weed Removal: Before planting, thoroughly clear the ditch banks of all existing weeds, especially aggressive perennial weeds, to minimize competition for your new plants. This can be done manually, by solarization, or with approved herbicides if necessary.
  • Soil Amendment: While many ditch plants tolerate less-than-ideal soil, improving very poor soil (e.g., heavy clay or pure sand) with compost can significantly boost establishment. Spread a 1-2 inch layer of organic matter and lightly incorporate it into the top few inches of soil.

2. Planting Techniques:

  • Spacing: Plant densely enough to provide good coverage, but not so close that plants compete excessively. Follow spacing recommendations for each species. For erosion control, closer spacing (e.g., 6-12 inches apart for grasses and groundcovers) is often beneficial to quickly establish a root mat.
  • Depth: Plant at the same depth they were in their nursery containers. Dig a hole twice as wide as the root ball to allow roots to spread easily.
  • Watering: Water thoroughly immediately after planting. This helps settle the soil around the roots and eliminates air pockets.

3. Ongoing Care and Maintenance:

  • Initial Watering: New plantings will require regular watering, especially during dry spells, until they are well-established (typically one to two growing seasons). Deep, infrequent watering is generally better than shallow, frequent watering.
  • Mulching: Apply a 2-3 inch layer of organic mulch (e.g., shredded bark, wood chips, pine straw) around the base of your plants, keeping it a few inches away from stems. Mulch conserves soil moisture, suppresses weeds, and moderates soil temperature.
  • Weed Control: Even with mulch, some weeds will inevitably appear. Promptly remove them to prevent them from outcompeting your desired plants.
  • Pruning: Shrubs and larger perennials may benefit from occasional pruning to maintain their shape, promote denser growth, or remove dead/diseased branches. Avoid heavy pruning on young plants.
  • Monitoring: Regularly inspect your ditch plantings for signs of stress, pests, or diseases, and address issues promptly. Also, keep an eye on the ditch itself to ensure it is still effectively channeling water without significant new erosion.

Here’s a quick reference table for some common ditch-friendly plants:

Plant Type Light Needs Moisture Tolerance Erosion Control Value Aesthetic / Ecological Benefit
Vetiver Grass Full Sun Wet to Dry Excellent (deep roots) Utilitarian, subtle texture
Switchgrass Full Sun Wet to Moderate Excellent (fibrous roots) Native, wildlife habitat, seed heads
Creeping Sedum Full Sun Dry Good (mat-forming) Succulent foliage, small flowers
Vinca Minor Partial to Full Shade Moderate Good (spreading roots) Evergreen foliage, purple flowers
Red Osier Dogwood Full Sun to Partial Shade Wet to Moderate Excellent (dense root ball) Red winter stems, berries, native
Bee Balm Full Sun Moist Moderate (clumping) Native, attracts pollinators, vibrant flowers
Ostrich Fern Partial to Full Shade Moist Good (spreading rhizomes) Lush foliage, woodland feel

With consistent care, your planted ditch will not only solve erosion issues but also evolve into a thriving, attractive part of your landscape.

Transforming a barren ditch into a vibrant, stable landscape feature is an achievable and rewarding endeavor. We’ve explored the critical first step of understanding your ditch’s specific environmental conditions, from sunlight and soil moisture to slope and water flow, emphasizing that tailored plant selection is key to success. We then delved into specific plant categories, highlighting deep-rooted grasses and groundcovers like vetiver, switchgrass, sedum, and vinca for their superior erosion control capabilities. Beyond pure function, the article stressed the importance of incorporating flowering perennials and ferns, such as bee balm and ostrich fern, to enhance aesthetic appeal and promote biodiversity, turning a utilitarian space into an ecological asset. Finally, we covered essential practical tips, from proper site preparation and planting techniques to ongoing watering, mulching, and weed control, ensuring the long-term health and stability of your plantings. By carefully planning and thoughtfully executing these strategies, you can effectively stabilize your ditch, improve its appearance, and contribute positively to your local ecosystem, creating a healthier and more beautiful property.

Image by: Suri Huang