Gardeners are being encouraged to plant native “tredges” to help boost England’s tree cover.
The call from the Royal Horticultural Society supports government plans to raise woodland cover from 10% to 16.5% by 2050.
Tredges are plants that sit between a hedge and a tree, offering wildlife benefits without dominating small gardens.
Experts say England’s 25 million gardens could play a key role in restoring biodiversity.
The approach will be showcased at the Chelsea flower show by the Woodland Trust.
Its garden design will demonstrate how damaged woodland can be regenerated using native species.
RHS specialists recommend small native trees such as hawthorn, which suit limited spaces and support wildlife.
Layered planting and softer transitions between garden habitats can further mimic ancient woodlands.
Gardeners are also urged to use UK-grown trees to reduce disease risks.
After the show, the garden will be relocated to a primary school in Newcastle to increase local tree cover.
