I am trying to grow butterhead lettuce and iceberg. The butterhead has gotten very tall and "stalky," and no heads have formed. The iceberg has heads sort of, but very loose. Not nice compact tight heads. What am I doing wrong?
I’m Trying to Grow Butterhead Lettuce
Certified GKH Gardening Expert
If it's getting tall and stalky, it may be bolting, and is usually brought on by high temps. Additionally, head lettuce requires a relatively low average temperature, particularly during the latter part of the growing cycle to form solid heads. Temperatures above 75 degrees F will produce loose, soft-headed lettuce. Here is more information: https://www.gardeningknowhow.com/edible/vegetables/lettuce/bolting-lettuce-plants.htm