Why is enhancing biodiversity important?
Explore seven easy biodiversity enhancements to turn your garden into a vibrant, healthy ecosystem. Help nature and say goodbye to dull landscapes!
I’m sure, unlike me, you’ve never sat around thinking about the importance of biodiversity enhancement, but why should it matter to you? The simple act of adding more diversity to your landscape can do wonders, not just for your garden but for the surrounding ecosystem as well.
Boosting biodiversity is easier than you might think, whether you work with a tiny backyard in the suburbs or a large urban plot. Let’s examine seven key elements of biodiversity enhancement and offer some real-life tips and tricks you can apply immediately.
1. NATIVE PLANT SELECTION: NATURE'S ALL-STAR TEAM
Native plants are the unsung heroes of your local ecosystem. They’re adapted to the local soil, climate, and pests, making them incredibly resilient and less resource-intensive. By supporting local pollinators like bees, butterflies, and birds, native plants create a vibrant, balanced ecosystem. They also help maintain the genetic diversity of plant populations, which is crucial for long-term ecological health.
A few years ago, I redesigned a rear yard for a client tired of the endless battle against invasive species like Chinese Bittersweet and English ivy. The solution? A complete overhaul with native plants.
The invasive vines had taken over a wooded corner of my client’s quarter-acre lot in Prince George’s County, Maryland. They had grown up into a mix of oak and maple while the property sat vacant after the previous owner’s passing. Three to five years because the vines hadn’t damaged the trees yet, and a tree service could save them.
The landscape contractor spent two days removing the fines and other invasive plants from the yard, bringing in compost, preparing the soil, and planting the natives.
We swapped in Black-eyed Susan, Purple Coneflower, native grasses, and other common natives. But we also went out of our way to bring in as many other not-so-common native plants as possible, like Sassafras, Virginia Bluebell, Celandine Poppy, and more. Within one season, the transformation was incredible. Not only did the garden look better, but we also noticed a significant increase in bees and butterflies—a clear sign of the impact of using plants that are naturally in tune with the area.
Native Plant Strategies:
- Select plants native to your region. Local garden centers or online resources can help you find suitable varieties. Sometimes, you might have to travel to get a particular plant.
- Avoid invasives. These species can quickly outcompete natives and disrupt local ecosystems. Remove as many invasive plants as you can from your property.
- Specify flowering plants, shrubs, and trees to attract a range of pollinators and provide year-round habitat.
2. HABITAT CREATION AND RESTORATION: A PLACE FOR EVERY CREATURE
Your property may be small but think of your garden as an ecosystem. It’s not just about the plants; it’s about creating a thriving community for wildlife. By offering a range of habitats, like meadows, woodlands, or wetlands, you can support different species at various stages of their life cycle.
Urbanization restoration methods can help reverse the effects of human development. When done correctly, you won’t have to worry about creating undesired interactions with wildlife.
On one of my landscape projects in Silver Spring, the client tasked me with restoring a small urban backyard that had once been home to a thriving vegetable garden. Over the years, however, it had been overtaken by invasive grasses.
The owner’s backyard had drainage issues, so we would need to dig up half of it to install a drainage system. So, the owner decided to create a habitat garden, complete with a butterfly-friendly meadow and a small pond for amphibians.
After the first spring, we noticed dragonflies, frogs, and a family of birds nesting in the shrubs. This increase in wildlife was a beautiful reminder of how quickly nature can bounce back when given the right environment.
Approach for Habitat Creation:
- Think about creating microhabitats—places where different species can thrive, like a sunny spot for pollinators, shady nooks for moisture-loving plants, and water sources for amphibians and birds.
- If you’re working with a degraded site, consider restoring it with native vegetation that matches the local landscape.
- Don’t forget the importance of fallen logs, mulch, and rock piles, perfect for insects, small mammals, and birds looking for shelter.
3. REDUCING CHEMICAL INPUTS: NATURE'S WAY OF DOING THINGS
Chemicals like pesticides and synthetic fertilizers can harm the delicate balance of your garden’s ecosystem. While they might give you a pristine lawn or beautiful roses, they often come at the cost of pollinators and soil health. Reducing or eliminating chemical inputs can harmonize a more sustainable landscape with nature. I would not get on a soapbox but prefer fewer chemicals in my home environment.
A few years ago, I worked on a project for a client who was frustrated with the constant battle against aphids in their vegetable garden. They used chemical pesticides and fertilizers, which they realized also killed off beneficial insects like ladybugs.
We recommended that the client use a natural pest control method (like companion planting and introducing predatory insects), stop using chemical fertilizers, and feed the soil organically with goodies like blood, bone, and sea kelp. The chemical fertilizers cause an unnatural flush of tender new growth on plants that attract aphids.
After one season, they saw a massive reduction in aphids and an increase in bees and butterflies. The garden became more vibrant and self-sustaining, all without the need for harsh chemicals.
Chemical Reduction Strategies:
- Use organic methods practices, such as composting and mulching, to nourish your plants without synthetic fertilizers.
- Introduce beneficial insects, like Praying Mantises, to keep pests in check.
- Protect plants with natural pest control methods, such as neem oil, or physical barriers, like row covers.
4. WILDLIFE CORRIDORS AND CONNECTIVITY: LINKING UP FOR SURVIVAL
Wildlife can become isolated in fragmented landscapes, making it harder for species to find food, mates, or shelter. Wildlife corridors help species move freely between habitats, leading to more robust, more diverse wildlife populations without much effort.
One project I worked on in Long Island, New York, involved designing a backyard garden in a suburban neighborhood with small lot sizes and limited natural areas. To increase biodiversity, we added a series of native trees and shrubs that linked the backyard to a nearby park.
We were able to produce a micro wildlife corridor because of community organization. We could plant one tree and six shrubs along their rear fence lines in twelve connected backyards. The homeowners already connected the fence lines to the park. It didn’t take much. Within a season, we saw an increase in bird activity along the micro corridor, mainly migratory species that used it as a stopover point. It was a simple but effective way to reconnect a fragmented landscape.
Wildlife Corridor Tactics:
- Design your landscape with wildlife in mind. A well-placed hedge, tree line, or flower border can allow animals to travel between fragmented green spaces.
- If you live in a more urban area, consider adding green roofs or green walls to create additional vertical habitat for birds and insects.
- Advocate for wildlife corridors in your community. Sometimes, small neighborhood projects can make a big difference in creating larger, connected green spaces.
5. WATER MANAGEMENT: HEALTHY ECOSYSTEMS NEED HEALTHY WATER
Water is a vital resource for biodiversity, and managing it well in your garden can significantly impact the species that depend on it. Rain gardens, ponds, and even simple birdbaths can provide essential resources for wildlife while reducing runoff and preventing water pollution.
I once designed a rain garden for a client whose backyard had poor drainage, leading to erosion and water pooling in unwanted areas. The rain garden helped manage the water flow and became a natural habitat for birds, frogs, and insects. Over the years, it’s transformed from an unused patch of land into a thriving micro-ecosystem, all thanks to the strategic use of water.
Water Management Plans:
- Install a retention pond, rain garden or bioswale to capture and filter stormwater runoff. If you don’t have the room, consider installing a dry well.
- Use permeable materials for patios and walkways to allow rainwater to soak into the ground rather than run off.
- If you have a pond or water feature, ensure it has a natural filtration system and doesn’t rely on chemicals to stay clear. Not having those harsh chemicals around your home is healthier for your family.
6. SOIL HEALTH: THE FOUNDATION OF LIFE
Healthy soil is the core of any thriving ecosystem. It’s home to countless microorganisms, fungi, and insects essential for plant growth and nutrient cycling. Simply put, soil is alive. Improving soil health is one of the most effective ways to support biodiversity.
I’ve always been a fan of composting and recommend it to all my clients. Over time, you can build fertile soil teeming with earthworms and other beneficial organisms. Not only do plants grow better, but I also notice that the gardens require less water and fertilizer.
Soil Health Moves:
- Compost regularly to add organic matter back into the soil.
- Rotate crops and plants to prevent soil depletion and reduce pest buildup.
- Avoid tilling too often, as it disrupts soil structure and harms living organisms. I always tell my clients that no more than one or two passes in planting beds per year with a power tiller are needed. You don’t want to pound the soil into a fine powder.
7. SUSTAINABLE LAND USE PRACTICES: MAKING LONG-TERM INVESTMENTS
Sustainability isn’t just about the here and now; it’s about thinking long into the future. By adopting sustainable land use practices, like agroforestry, permaculture, or low-impact development, you can ensure that your landscape remains healthy and resilient for future generations.
I was once involved in installing a community garden in a local park. I didn’t design or plan the project; I was just a worker. They used permaculture principles to create a space that would continue providing food, habitat, and beauty for years. The design emphasized biodiversity enhancements, with edible plants, native species, and water-saving features. It’s an educational experience and a great example of how sustainable practices can benefit people and wildlife.
Key Sustainable Land Use Strategies:
- Integrate sustainable design principles like permaculture or agroforestry into your landscape to ensure long-term ecological health.
- Use local, natural materials in your hardscaping to reduce resource consumption.
- Prioritize low-impact development techniques to minimize environmental disruption.
CONCLUSION
By incorporating these seven biodiversity enhancement strategies into your landscape design, you’re beautifying your yard and creating a more resilient, biodiverse environment that supports people and wildlife. Remember, biodiversity isn’t just something to be admired by people from a distance—it’s something we can actively contribute to in our backyards, communities, and beyond. The more you invest in your garden’s health and variety, the more you’ll see the benefits—not just in vibrant plants but in the wildlife that will soon call your landscape home.
