This excerpt is from the column of Dear Abby. I have no idea why "orchids" are offered for Mother's Day?

: DEAR READERS: Happy Mother's Day to mothers everywhere. This includes birth mothers, adoptive and foster mothers, stepmothers, grandmothers who are raising grandchildren, and dual-role dads. Orchids to all of you for the love you give every day. -- Love, ABBY

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Well, first of all, there really isn't any special association with orchids and Mother’s Day.

But orchids are considered a fairly luxurious ornamental flower so they are good for special occasions.

And, in the 1930s, the US newspaper columnist Walter Winchell would “award” orchids to people he considered worthy of special recognition or praise by saying “Orchids to you!” (In fact, a movie was made referencing that specific phrase by him in 1935.) Revlon, the cosmetics manufacturer, later adopted it as an ad slogan in the early 1940s. So Abby is merely adopting that phrase, although it is a very dated one.