National Allotment Garden Trust - Allotment Information
National Auricula & Primula Society - Auricula & Primrose Information
National Begonia Society - Begonia Information
National Council for the Conservation of Plants & Gardens - Plant Conservation Charity
National Dahlia Society - Dahlia Information Society
National Gardens Scheme - Gardens Open for Charity
National Society of Allotment & Leisure Gardeners - Allotment Information
National Sweet Pea Society - Sweet Pea Information
National Trust - Heritage Conservation & Open Gardens
National Viola & Pansy Society
National Vegetable Society  - Kitchen Gardeners Information
Natural Driftwood Sculptures - Garden Statuary
Naughty Gnome - Rude Garden Gnomes

Nicky's Seeds - Mail Order Seed Supplier

North of England Horticultural Society - Horticultural & Flower Show Information
North York Moors National Park - Regional Park Information Site
Northumberland Wildflowers - Wildflower Seeds & Plants

Nuisance Hedge Advice Centre - Hedge Problems Advice & Information