Encino lettuce is a tender green oakleaf. I always pay attention when a vendor like Rich Pascale of Shoestring Farm urges me to try something. I am really glad I took home a huge head of Encino.  The end of August is getting to be the end of the season for Encino, but now only the beginning of my desire to grow it, or at least eat it. I found seed at Seedway and as far as I can…