Posted: 31/07/2016 at 09:02
For wildlife, go for sanguisorbia or persicaria bistorta which both have fluffy flowers rather than grasses which are wind pollinated and not attractive to insects. Astilbes do best in moist soil as their foliage can go brown at the edges in dry soil.
Hardy geraniums are good ground cover perennials which attract pollinators but are not eaten by slugs and many forms make good round, hummocky shapes. Sedum spectabile will provide flowers for bees and hoverflies and butterflies form mid summer to autumn.
For a small rounded shrub with evergreen foliage and fluffy flowers have a look at hebes.
This is a list of pollinator friendly plants put together by the RHS and organised by season of interest so you can maybe spread the food sources through the year - https://www.rhs.org.uk/science/pdf/conservation-and-biodiversity/wildlife/rhs_pollinators_plantlist