There was a song that was widely played on radio when I was a kid called English Country Garden, I can't remember many of the words, but they were something like:

How many kinds of flowers can you grow

In an English country garden,

I'll tell you now of some that I know

And those I miss, I beg your pardon,

(then followed a long list of different flowers which I can't remember)

I don't know if this is the song you mean, but it might jog someone else's memory....

Good luck!!

Anne