Lettuce Plants

Milky White Substance

Anonymous added on July 7, 2011 | Answered

I have recently let my red leaf lettuce grow too much, and now the leaves are hard and there is milky white liquid that is coming from the stalk when I cut it. What is this, and is it still ok to eat the lettuce after it's gone to seed?

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Certified GKH Gardening Expert
Answered on July 8, 2011

It is safe to eat but when lettuce goes to seed, it develops a bitter flavor and does not taste good. The milky substance is just the juice, or sap, of the mature plant.

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