The Kratky hydroponic lettuce experiments are moving along just fine! On the right side of the photo we can see the earliest batch is progressing as planned. Note the beautifully white root system developing in the nutrient rich water, along with the air gap that is forming as the liquid evaporates or is consumed by the young lettuce plant.
You can see the rest of the lettuce plants started from seed at the same time as the plant where we show the root system, and compare the leaf growth relative to the younger lettuce plants started from seed on 1/13/19. The different in growth over those extra couple of weeks is notable.
What if we could just start a half dozen lettuce plants from seed every couple of weeks and have an endless supply of low-work, low-maintenance lettuce for personal consumption? I think we can!