These McCullough's trade cards are from 1888. They are special because they are designed for the seed merchant to feature his flowers. I more commonly find a sappy and generic trade card from this period that seedsmen have used, or a very business like card with text only.
I checked...the quote above isn't a quote.
Below is a sample of an off-the-shelf design that might be used by many sorts of businesses.
This Rice's card is really nice and snappy, not sappy, but I bet it was a generic blankto which the printer just added Rice's name.