Should Seedlings Get the Light 24 Hours a Day?

I need to get somewhere, but I still don't have a timer for my new lights. Can I have it on until tomorrow when I return?

No, that’s a horrible idea.

Constant light would make it difficult for seeds to germinate. Therefore, a 16-hour on, 8-hour off cycle of light and darkness is advised for seedlings. Although seedlings do need a great amount of light to grow, they also require dark time to respire.

MORE: LED Grow Lights for Seedlings: A Complete Guide

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