Seedling question

Seedling question

I've got a number of successful cucumber seedlings (first true leaf showing) that I have to transplant into something with more root space than the cardboard egg carton cups. My question: they're all quite leggy -- about 3" from soil to leaf. If I bury most of the stem when I transplant, will it grow more roots and give me a stronger plant (like a tomato), or will it just rot and die?
Help! Who/What is the culprit?

Help! Who/What is the culprit?

Fox Red Curly Sedge

Fox Red Curly Sedge

Lacewing eggs and what happened to the cosmos

Lacewing eggs and what happened to the cosmos

monarch, and a tomato question

monarch, and a tomato question

Emergency Medical Attention Needed, HELP!

Emergency Medical Attention Needed, HELP!

Clutter!

Clutter!