Whilst I agree with the sentiment of promoting 'native' species, it can only occurr with the correct environment. Due to climate changes and high population density (especially on our wee island - a.k.a. Britain) it is often not possible to promote the species we'd like to.

For example, I'd love to grow ferns in my garden and, on the whole, I have the right condirions that a lot of british ferns would reqire. However, as I live in the city, there's too much pollution to allow ferns to flourish.

Ultimately what we grow in our gardens is governed by the environment, about which, there is only so much we can do. The best way to ensure that we can keep growing and promoting any species is to keep a broad genetic stock from which to evolve from.

Just for interest's sake...

Why not adopt a variety of veg?

See if your garden can support some wild flowers