Posted: 23/07/2013 at 18:30
Some people subscribe to the idea that lettuce will not germinate in the open ground when it is too hot.
It is easier to shade the seed in a greenhouse than in the open soil. Discuss.
Also planting out the lettuces will enforce sucession as the seedlings recover from planting out. And they can be fitted in wherever they are wanted, in a spare space.
The choice is up to the grower.