My Question Of The Day Is ... What do you call a group of gardeners?

I’ve been inspired to ask this question after reading Head Burro's comments which talked about his family all being gardeners ... and it’s the same for me ... everyone a dedicated gardener!
There are lots of terms we use everyday to describe different groups of animals ...
a herd of cows
a gaggle of geese
a pride of lions
a team of horses ...
And there are some more unusual descriptions as well ...