Our Romaine Lettuce has Bolted.

New experiences continue LOL.

Bolting means its going to seed. Caused by drop in temperature.

I might try to save the few seeds just for amusement.  

Apparently the lettuce is quite bitter at this point and most throw away or compost.


https://www.gardeningknowhow.com/edible/vegetables/lettuce/bolting-lettuce-plants.htm