I Subscribe - Discount Gardening Magazine Subscriptions

Ian's Passiflora Website - Passion Flower Information

Imogen Stone - Cut Flowers, Bouquets

International Camellia Society - Camellia Information
International Correspondence Schools (ICS) - Gardening & RHS Qualification Courses
Institute of Horticulture - Horticultural Industry Society
Insulite Panels - Greenhouse Insulation
Integrated Plant Protection Centre - Pest Control Information

Implementations - Copper Hand Tools

Irish Gardeners - Irish Gardening Forum

Ivens Orchids - Orchid Sundries