Cacti.com - Cacti & Succulents
Cactus Art - Cacti & Succulents
CactusShop - Cacti & Succulents
Camelia Grove Nursery - Regional Camelia Nursery
Canadian Gardening - Gardening Information Magazine
Captain's European Butterfly Guide - Butterfly Information
Carniverous Plant Society - Carniverous Plant Information Site
Carniverous Plants UK - Carniverous Plants Portal
Carry On Gardening - Special Needs Gardening Tips
Casa Rosa - Florist
Cats 4 Ever - An evergreen4ever, non-gardening, affiliate website

Central Scotland Forest - Regional Bio-diversity Information Site

Chatto, Beth Gardens - Nursery & Ornamental Gardens
Chileman.org - Chile Database
Chiltern Seeds - Mail Order Seed Supplier
Christie's Alpine Nursery - Alpine Plants
Christmas Tree Farm - Mail Order Christmas Trees
Christmas Trees On-line - Christmas Tree Information

Clare Bulb Company - Bulb Suppliers
Clare Florist
Cleeve Nursery & Garden Centre - Regional Nursery & Garden Centre
Clemson Home & Garden Info Centre - Plant & Gardening Information

Coastal Plants - Coastal Plants
Colorado Springs - Xeriscape Information
Colorado State - Xeriscape Information
Cornhill Direct Garden Tips - Garden Advice & Safety Tips
Conifers Direct - Mail Order Conifers
Cornish Willow - Wicker Baskets
Coronet Turf - Turf Suppliers
Cotswold Company - Garden Accessories, Garden Furniture & Garden Lighting
Cottage Garden Society - Informal Gardening Information
Coulson's Bridges - Wooden Garden Bridges
Country Cottages In Ireland - Cottage & Garden Holidays
Cover Store - Garden Furniture & BBQ Covers
Cowells Garden Centre - Regional Garden Centre

CP UK Forum - Carniverous Plants Discussion Forum

Crittergetter - Pest Control
Crocus - Cut Flowers & Plants, Garden Equipment & Products, Gardening Gifts

Cyclamen Society - Cyclamen Information