Some Seeds Need Red Light to Germinate

March 16, 2019

Some plant seeds do not germinate until they are exposed to red light. If you have ever tried to grow lettuce from seed, only to be disappointed when the seeds did not sprout, you most likely covered the seeds with soil and blocked them from the light.

Lettuce seeds require light to germinate.
PC: Leslie F. Halleck

Check the seed pack to see if your seeds need some exposure to light to germinate before you plant them.

Gardening Under Lights Book

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