Planters as biodiversity hotspots: maximising green space on rooftop terraces

Rooftop terraces offer a unique opportunity to create green oases that not only enhance the aesthetic appeal of buildings but also contribute significantly to biodiversity.

By incorporating planters into these elevated spaces, we can transform rooftops into thriving ecosystems that support a wide range of flora and fauna.

The importance of Biodiversity Net Gain

Biodiversity Net Gain (BNG) has become a crucial concept in urban development and landscaping. It refers to the positive impact on biodiversity that a project can achieve, leaving the natural environment in a measurably better state than before.

As cities continue to expand, integrating BNG into urban planning is essential for maintaining ecological balance and promoting sustainability.

Planters: Small spaces, big impact

Raaft® planters, made from robust steel and available in various designs, are ideal for creating biodiversity hotspots on rooftop terraces. These versatile containers can play a significant role in achieving BNG by:

• Creating Diverse Habitats: Each planter can host a variety of plant species, from native wildflowers to small shrubs, providing food and shelter for insects, birds, and small mammals.
• Supporting Pollinators: By choosing nectar-rich plants, planters can attract bees, butterflies, and other pollinators, crucial for maintaining healthy ecosystems.
• Improving Air Quality: Plants in rooftop planters can help filter air pollutants, contributing to better air quality in urban areas.
• Enhancing Water Management: Planters can be designed to capture and retain rainwater, reducing runoff and supporting sustainable water management practices.

Maximising biodiversity with Raaft® planters

To make the most of your rooftop terrace and contribute to BNG, consider the following strategies:

• Varied Planting Schemes: Use a mix of Raaft® planters in different sizes to create a layered effect, mimicking natural landscapes and providing diverse habitats.
• Native Species Selection: Prioritise native plant species that are well-adapted to local conditions and support indigenous wildlife.
• Year-Round Interest: Choose plants that flower at different times of the year to ensure a constant food source for pollinators and visual appeal throughout the seasons.
• Structural Diversity: Incorporate planters of varying heights and shapes to create a range of microclimates and habitats within the terrace space.

Integration with Raaft® terrace system

The Raaft® Terrace System offers a perfect foundation for creating biodiverse rooftop spaces. Its modular design allows for easy integration of planters alongside decking and paving elements.

This versatility enables the creation of seamless transitions between hard and soft landscaping, maximising the potential for biodiversity while maintaining functionality and aesthetics.

Real-world application: Nine Elms project

The Nine Elms project in London exemplifies how planters can be effectively integrated into rooftop terraces to enhance biodiversity and create a nature-inspired workspace. This case study demonstrates the practical application of the concepts we've discussed:

• Extensive Planting: The Osmo Battersea office space features extensive interior and exterior planting, creating a relaxing working environment that brings employees closer to nature.
• Integrated Design: The terrace incorporates steel planters with integral benches and lighting, showcasing how functional elements can be seamlessly combined with green spaces.
• Sustainable Approach: The project aligns with sustainability goals, designed for zero-CO2 operation, which complements the biodiversity efforts.
• Durable Materials: Raaft® steel planters used in the project offer durability and a distinctive patinated surface, ensuring long-lasting biodiversity support.
• Versatile Spaces: The planters create alternative work zones, demonstrating how biodiversity features can enhance the functionality of rooftop terraces.

Planter Systems from Raaft

Whether you are looking to add planters to your existing rooftop terrace or wanting to incorporate a new rooftop terrace to your property, it’s key you understand what challenges you may face.

From elegant to versatile and unique designs, see the countless possibilities available to you at Raaft – get in touch with our technical experts’ team today.