Extending Lettuce and Green Season Indoors

Welcome to Plant Exchange Blog. It’s cozy indoors but at the end of November, we can see that winter ice and snow is here.

One of the treats of fall is to extend the season of lettuce and other greens such as fresh fall lettuce, kale, mustard greens, and spinach. We brought trays of them indoors that were started outdoors in mid-September. We find it easier to continue fall growth indoors once plants are growing well than starting them indoors because light and temperature become less favorable for them to germinate later.

Care for the lettuce and greens under florescent light is minimal. Plants needs to be consistently watered. Leaf harvest is easier with scissors and the plants are less damaged for future harvests. Some leaves are always spared in harvest, to encourage future growth.

About now, light and room temperature, about 68 degrees F during the day and 64 degrees at night, is enough to slow plant growth. Yellow leaves appear, signaling time to consider bringing the season to a close.

Swiss chard and basil seem to adapt to the cooler conditions and limitations of artificial light for continued harvest.


The video shows plants that have grown more than 2 months and have had multiple harvests by now.

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Thanks for including Plant Exchange Blog in your day. We appreciate your comments and “Likes” and all the loyal “Followers” that visit. See you next week!



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