Cracked Up

I told this corny, old joke to the post in this photo:
"A couple in their 70's had dinner at another couple's house and, after eating, the wives left the table and went into the kitchen. 
The two men were talking, and one says: "Last night we went out to a new restaurant, and it was really great. I would recommend it highly."
The other guy says: "What's the name?"
The first man knits his brow in concentration, and finally says:
"Aahh, what is the name of that red flower that has thorns?  
"Do you mean, a rose"
"Yeah! Then he yells to his wife in the kitchen, "Rose!, what's the name of that new restaurant?"