What is good and bad for garden biodiversity?
Unsurprisingly the following were found to be good for garden biodiversity: Diverse plant structure with trees, shrubs, lawns and flower borders, ponds, a compost heap, hedges and walls.
Factors bad for wildlife were: Lots of hard landscaping, use of slug pellets and being too tidy
Based on these criteria, many gardens in the UK are already, to some degree, good wildlife gardens.
To further improve biodiversity, these characteristics can be used as a starting point for many other enhancements. These could include: Letting your lawn or part of it grow long, adding deadwood habitats such as a large woodpile or a dead hedge, using nest boxes that are known to work as well-designed solitary bee nests and using no pesticides at all.