Bat Bazaar  www.batbazaar.co.uk Detectors and products to encourage summer visitors. Includes books and CDs of British species and their natural habitat, greeting cards, with profits to the Bat Conservation Trust. Purchase online from Bishop's Castle.

British Wildflower Plants  www.wildflowers.co.uk Offer over 400 species of native British plants; site features searchable database with photographs and downloadable catalogue. Mail-order service available.

Green Gardener  www.greengardener.co.uk Family firm supplying products for composting, biological pest control, and encouraging nature's visitors. Includes online ordering, with contacts in Bergholt and Rendlesham, East Anglia.

Landlife Wildflowers  www.wildflower.org.uk The trading arm of Landlife, a wildflower conservation charity, grows and supplies native wildflower seeds and plants.

Monarch Gardens  www.monarchgardens.co.uk Environmentally friendly products including wild bird feeders, food and nesting boxes. Includes recycling, water and energy saving tips, with online catalogue, and contacts in Bedford.

Naturescape  www.naturescape.co.uk 40-acre wild flower farm offering plants and seeds by mail order, and information for prospective visitors.

The Nest Box Company  www.nestbox.co.uk UK manufacturer of all types of specialist nesting boxes for British wildlife - for birds, mammals, and owls. Selling nest boxes to trade and direct to the public.

The Owl Box  www.theowlbox.co.uk Wildlife boxes for owls, birds of prey, bats, hedgehogs and garden birds; order by post with order form.

Scott's Wildflowers  www.scottswildflowers.co.uk Native wildflowers by mail order from Cumbria nursery, with advice on creating woodland, wetland and meadow habitats for both plants and wildlife.

Stag Electronics  www.batbox.com Bat detectors, books and CDs of bat echolocation, for sale, plus downloads of bat sounds and bat music.

Yellow Flag Wildflowers  www.wildflowersuk.com Wildflower seeds, bulbs and plants native to or naturalised in the British countryside.