Site Restoration & Replanting
Returning treated land to a healthy, biodiverse state with native species and expert aftercare
Why Restoration Matters
Removing an invasive species is a vital first step, but it is not the end of the story. Land that has been dominated by Japanese knotweed, giant hogweed, rhododendron or other invasive plants is often left in a degraded state: soil structure may be compromised, native seed banks depleted, and the conditions that allowed the invasion in the first place—bare ground, poor drainage, lack of competition—remain unchanged. Without active restoration, these sites are highly vulnerable to recolonisation by the same invasive species or by other opportunistic weeds.
Fortis Ecology’s restoration service bridges the gap between invasive species removal and a thriving, self-sustaining landscape. We design bespoke replanting and remediation schemes that work with the site’s natural ecology, establishing native plant communities that provide long-term resilience against reinvasion, enhance biodiversity and deliver genuine environmental value. Every restoration plan is prepared by qualified ecologists who understand the soils, hydrology and plant communities of the local area.
Our approach is grounded in practical experience across hundreds of sites, from small residential gardens recovering from knotweed treatment to multi-hectare woodland estates cleared of rhododendron, and riverbank corridors requiring stabilisation after hogweed or balsam removal. We work with developers, local authorities, conservation bodies and private landowners to deliver restoration outcomes that meet planning conditions, environmental stewardship targets and biodiversity net gain requirements.
What We Restore
- Post-knotweed sites — Soil remediation and replanting following Japanese knotweed excavation or herbicide treatment, restoring gardens, boundaries and development land to productive use
- Cleared woodland — Native tree and understorey replanting after rhododendron or laurel clearance, promoting natural woodland regeneration and ground-flora recovery
- Riverbanks and riparian corridors — Stabilisation planting to prevent erosion after hogweed or balsam removal, using native marginal and bankside species suited to the watercourse
- Development sites — Landscape restoration to meet planning conditions and biodiversity net gain requirements, including green infrastructure, sustainable drainage planting and habitat creation
- Conservation areas — Habitat restoration within SSSIs, SACs and nature reserves, designed in collaboration with conservation bodies to support target species and habitat objectives
Our Restoration Approach
Every restoration project begins with a thorough site assessment. We analyse soil conditions, drainage patterns, aspect and the surrounding plant communities to build a clear picture of what the site can support and what it needs. From this assessment, our ecologists design a planting scheme that uses locally appropriate native species, selected for their ability to establish quickly, suppress weed growth and create the habitat structure the site requires.
Ground preparation is critical to successful establishment. Depending on the site, this may involve soil decompaction, pH amendment, drainage improvement or the addition of organic matter to rebuild soil health. We then carry out planting and seeding at the optimal time of year for each species mix, using cell-grown stock, bare-root whips or seed as appropriate. All planting is protected from browsing where necessary, and we install biodegradable guards and mulch mats to give young plants the best chance of survival.
Restoration does not end at planting. Our 12-month aftercare programme includes weed management, watering during dry spells, replacement of failed plants and regular monitoring to track establishment rates. For larger or more complex projects, we offer extended maintenance agreements of up to five years to ensure the restored habitat reaches maturity and becomes self-sustaining.
Biodiversity Enhancement
Beyond simply replacing what was lost, our restoration schemes actively enhance biodiversity. We incorporate wildflower meadow creation, pollinator-friendly planting, log piles and standing deadwood features, bird and bat box installation, and the creation of varied habitat structures that support a wide range of native wildlife. For sites subject to biodiversity net gain requirements under the Environment Act 2021, we can prepare habitat condition assessments and metric calculations to demonstrate measurable uplift in biodiversity value.
Our Four-Step Process
Assess
We evaluate soil conditions, drainage, surrounding ecology and any residual invasive species risk to establish the site’s restoration potential and constraints.
Design
Our ecologists create a tailored restoration plan with native species selection, ground preparation specifications and a clear planting schedule, all within a fixed-price quotation.
Plant
Our teams prepare the ground and carry out all planting and seeding at the optimal time of year, installing protection measures to maximise establishment success.
Nurture
A 12-month aftercare programme covers weed management, watering, plant replacements and establishment monitoring, with extended maintenance available for larger projects.
Frequently Asked Questions
How long before the site recovers?
Recovery timescales vary depending on the type of restoration and the condition of the site. Wildflower meadows typically begin to show colour in their first summer and reach full establishment within two to three years. Native woodland planting takes longer—you can expect a recognisable young woodland within five to ten years, though canopy closure may take 15 to 20 years. Riverbank stabilisation planting establishes relatively quickly, with effective erosion protection usually in place within one to two growing seasons. We set realistic expectations during the planning stage and provide monitoring data so you can track progress.
What native species do you plant?
Species selection is always site-specific and guided by local ecology. For woodland restoration, we typically use a mix of native broadleaves such as oak, birch, hazel, rowan, field maple and wild cherry, with an understorey of hawthorn, blackthorn, holly and dog rose. Riverbank schemes feature species like alder, willow, meadowsweet, purple loosestrife and yellow flag iris. Wildflower meadows are seeded with regionally appropriate mixes that may include ox-eye daisy, knapweed, bird’s-foot trefoil, red campion and yellow rattle. We source all plant material from UK-provenance nurseries to support local genetic diversity.
Do you offer ongoing maintenance?
Yes. Every restoration project includes a 12-month aftercare programme as standard, covering weed control, watering, replacement planting and establishment monitoring. For larger or more complex sites, we offer extended maintenance agreements of up to five years. These typically include seasonal management visits, annual condition assessments and adaptive management to respond to how the site develops. Ongoing maintenance is particularly important for wildflower meadows, which require specific cutting regimes to maintain species diversity.
Can you create wildflower meadows?
Absolutely. Wildflower meadow creation is one of our most popular restoration services. We prepare the ground by reducing soil fertility where necessary (many invasive species leave behind enriched soil that favours grasses over wildflowers), then sow a carefully selected mix of native wildflower and grass species suited to your soil type and region. The key to a successful meadow is the management regime that follows: we establish an appropriate mowing or grazing schedule and provide guidance on long-term care so your meadow continues to flourish year after year.