Monday, October 29, 2012

Winter Crop Covers; Cloche & Cold Frames


             Outside today is my favorite kind of autumn weather, warm sun, a few clouds and a refreshing breeze.  Quite a switch from Portland, Oregon’s weekend weather, when it felt like Winter.  It was stormy, if one didn’t know better one would have thought that hurricane Sandy had redirected itself westward, the rain and wind were merciless.  It also felt like winter because it was the farmer’s markets last open weekend of the season, reminding me that it’s time to prepare my garden for a change in season.

Good bye, until Spring, farmer's market favorites
I can’t complain, we had a mostly sunny October with almost no rain, one of the driest months on record for usda Gardening zone 8b. It has felt really cold to me at night here lately, I panicked a little when I thought it may have gotten down below freezing already; I have woken up plenty of mornings in October to see the thermometer at about 40 degrees F. I was relieved to find that the first frost for Portland hadn’t come yet, and on average the doesn’t come until November 21-30th– (http://www.plantmaps.com/interactive-oregon-first-frost-date-map.php)
                                                     
Some plants growing in my backyard over the winter will need to be covered for protection from frost, possibly snow and heavy rain. I don’t have a lot of experience covering plants, in the past years I have only covered strawberries and used the hay like mesh recycled from the bottom of a wire hanging plant basket, this worked well as a filter for rain. In addition to the strawberries, I have onion sets, garlic cloves, and leaf lettuce I need to cover.  Fortunately, one can get very elaborate or stay basic when it comes to covering plants. I did some research and found some methods that I plan on trying out.

Cloche
The Original cloche was a glass bell shaped jar placed over delicate plants to protect from harsh elements, especially at night. Although, lettuce can be tough I will plan on protecting and extending my lettuce crops with a modern, less elegant version of the original, the plastic milk jug cloche (cut the bottom off.)

Cold Frame
A cold frame is a protected plant bed ( it can be made portable and placed over different crops). Cold frames rely on the heat from the sun alone for warmth. It is usually only 5-10 degrees warmer in a cold frame than the outdoor temperature, but these few degrees still help, along with shelter from  harsh wind and rain that a cold frame provides. Common materials used for cold frames are: wood, plastic, fiber glass, and glass. 
I’m not much of a carpenter, so I was thinking of a way I could use the raised beds that I plant in as a frame. Then stretch plastic across the raised be and secure it with nails on one side then a less permanent seal for another side providing access to the bed and plants.  um yeah...well...I have a couple of weeks yet to plan it out.

Let me know what you do to protect your crops from the cold.

Find out the average date for the first frost in your area;

For more info on Cold Frames, Cloches, and Winter Garden care:
http://www.vegetablegardener.com/item/2504/cold-frame-gardening/page/all