Kings Seeds (Organic Seeds)

https://www.kingsseedsdirect.com/organic-vegetable-seed/

Take a look at our range of organic vegetable seeds online. Being organically sourced, you can grow your veg from seed to harvest chemically-free, just the way nature intended them to grow. Growing organic, means you know exactly what has gone into making your homegrown veg, and some may say that can make them even tastier! We continue our endeavours to produce and obtain as many varieties of organically-produced vegetable seed as possible. With over 120 varieties of organic vegetable and herb seeds, it is probably the largest range available.

Real Seeds

http://www.realseeds.co.uk/

Welcome! Our heirloom and heritage vegetable seeds are specially chosen for home gardeners. Over the past 20 years, we've collected the very best varieties for you to grow.

You'll find no F1 hybrids or genetically modified seed here - just varieties that do really well and taste great.

Heritage Seed Library

https://www.gardenorganic.org.uk/hsl

The Heritage Seed Library (HSL) maintains the national collection of heritage vegetables and aims to conserve vegetable varieties that are not widely available, sharing seed with our members to grow and enjoy.

The Heritage Seed Library is a vital resource to connect people with seed, keep our heritage alive and increase biodiversity.