Curtiss brand candies produced consistently great ads.

And we've got the ephemera-collecting niche of the seed/garden catalog.  They too contained gasp-inducing (I'm only speaking for myself) illustrations of fruit.  These are from 1936.

And Mastodon strawberries!

And then there are the floral illustrations in these catalogs and many of them are just mad.  Here the centerfold, sadly somewhat cropped by my scanner.