Q&A: Lettuce in the Winter?
Follow this tip to grow green vegetables during winter.
Filed under: Winter Gardening, Vegetable Gardening, Winter, Garden Zone 4, Vegetables, Plants
E-mail This Page to Your Friendsx
A link to %this page% was e-mailed
Q: It's mid November, USDA Zone 4, and I'm growing lettuce and other greens in my well-insulated cold frame. How long can this last? Can I add a light bulb, a string of Christmas lights or other heating device and continue to grow greens through a Minnesota winter?
A: Depending on how well insulated your cold frame is, the microclimate of its location, and on the weather, you should be able to keep cold-tolerant greens growing for quite a while into the cold weather. Some may slow down almost completely and then start growing again in very early spring.
You are right in thinking that a simple heat source such as a light bulb can extend the season significantly. I would caution you that whatever you use should be of good quality and made for long-term operation so that it's as safe as possible; there are in fact heating cables made for such a purpose. In the old days gardeners would build a cold frame over what was essentially a hot manure pile and capture the heat from that. These days we have more options!
This elegant spring show builds up from the alternating white and blue hyacinths to the blue grape hyacinths (Muscari), hidden...
With the right mix of trees and shrubs, your backyard can become a winter haven for birds.
Get some tips on maintaining healthy houseplants during the cooler months.Advertisement
HGTV Outdoors Newsletter