Welcoming Gladiola

A pineapple is a well-known symbol of welcome.  Pineapple motifs were commonly carved into colonial style furniture and used profusely in traditional home decor.  My understanding is that because pineapples were so very rare and expensive in Colonial America, presenting a pineapple to one’s guests was an enormously special occassion. 
Not sure if gladiola are as well-known [...]