Feb 22, 2015
Planted 5 Rockwool of Burpee Gourmet Lettuce Blend Lechuga using this seed starting procedure.
Picture also includes Arugula planting.
Feb 24, 2015
March 7, 2015
Moved 2 plants to the Tower Garden. Left the rest to compare how they grow outside the TG with inside the TG.
March 15
Plants inside the Tower Garden have grown considerably faster than the plants left outside the garden. After the 3rd week, I put the seedlings into the Tower Garden and they never caught up to the 2-week seedlings. The sweet spot for these types of lettuce seems to be to place 2-week old seedlings into the TG. (I’m trying 1 week on the seedling warmer, then the second week off the warmer.)

Seeds started February 22. Placed into Tower Garden March 15. (I pulled these plants to make room for 2-week old seedlings.)
March 31
Plants placed in the Tower Garden at 2 weeks were much larger at harvest than the plants placed in the TG after 3 weeks.