What Is The Best Place To Get Gardening (not Commercial) Varieties Of Vegetable Seed Plants?

I put in some broccoli last year, spending the whole year fighting off the slugs and pigeons only to find pathetic little florets all at the same time that bolted within a week. It must have been a commercial variety that needs lots of fertiliser and inputs, and is designed to be harvested once and then ploughed up. A garden variety can produce a reasonable crop with just a bit of compost, but most important can throw out a few florets over a long season, which are reluctant to bolt. This sys

TEG confirms £38m compost deal (ShareCast via Yahoo! UK Ireland Finance)

Green technology firm TEG Group has sealed £38m of orders from Costain, which today won a £397m deal to build municipal waste treatment infrastructure in Greater Manchester.