I guess most people don't see lettuce as flowers, but lettuce does bloom.  When it's ready to make seeds, lettuce blooms.  The flowers look a lot like tiny dandelion flowers.  And, just like dandelions, they mature into those little fluffy fairies that fly around.  So I picked these lettuce heads before the flowers opened completely.  I love the fairy seeds outside, but not in my living room.  
 

We planted about 12 lettuce seedlings.  6 green Buttercrunch, and 6 red Romaine type.  We've been eating our own lettuce in salads since April.  Now that the lettuce  has bolted, the leaves are a little bitter, so I just let them go to seed.  We'll harvest the seeds when they are ripe, and save them to plant next spring.  If August isn't too hot, I may plant a fall crop.  I love not having to buy lettuce.  Besides, it is so pretty growing in the garden.  
 

And, don't they look great in Momma's cornucopia vase?  
 

HAPPY GARDENING!!!