Wiktionary
a. (context idiomatic English) ordinary, common, or unexceptional. alt. (context idiomatic English) ordinary, common, or unexceptional.
Wikipedia
Garden Variety was an American post-hardcore band active in the 1990s. During their time together, the band created two LPs (a self-titled album in 1993 and Knocking the Skill Level in 1994) and several 7" singles between 1991-1996. The band broke up in the mid-1990s, with the members joining other bands.
Usage examples of "garden variety".
Napellus, is the old- fashioned, familiar garden variety, which may be easily recognized by its very much cut- up leaves, which are wide in the shoulder of the leaf - that part nearest the stem - and also by the purplish- blue flowers, which have the 'helmet' closely fitting over the rest of the flower, not standing up as a tall hood.
This Clary was thought to be more efficacious to the eye than the Garden variety.
Well, the garden variety maze is a complicated series of paths bounded by hedges.
And if it was telekinesis it was the garden variety and nothing more.
He may use a common garden variety of blackmail or he may even have a genuine Talent.
If you were a garden variety common sense sort of person, staying put probably looked better.