Winter sowing is a quick and easy seed starting technique used to get an early start to both vegetable and flower gardens! All you need are seeds and a recycled container - let's get started!
Time: 4 MonthsCost: $2Difficulty: Easy
Gardening is hands-down one of my favorite ways to spend my spare time in the summer. However, there are some challenges when the time comes to start seeds. While many seeds can be directly sown into the soil, some need to be started indoors in order to have a successful crop. This can be a HUGE issue for those of us who don't have the time, money, and/or space for such a task!
Winter sowing is using containers (usually empty milk jugs) to make little “mini greenhouses” that you plant seeds in and put outside during the winter. The best candidates for winter sowing are plants that don’t mind a little bit of a chill. For example, I wouldn’t winter sow my zinnias in January. However, something like bachelor’s buttons would be a very good candidate for sowing since they can handle the cold and are often one of the first flowers to germinate in the spring. By winter sowing, I’m able to get a jump-start on the season, without taking up precious space in my house. In addition to more hardy annuals, any perennial that is hardy in your climate zone may be a good candidate for the process. One reason this method works well for perennials is that many need a period of vernalization (cold exposure) before they sprout. Instead of sticking random packages of flower seeds in the fridge, why not let mother nature do all the work?
First, we'll need a container. Things like milk jugs and two litre bottles are perfect for our project. Ideally, we want containers that are either clear or lightly opaque. Solid colored containers will not work. An opening in the top is also important, as we'll want rain and snow to be able to enter the bottle. Don't worry, we can still recycle the containers after we're done using them!
Using a sharp pair of scissors, or shop snips, we'll begin to cut the container. The snips that I use are Fiskar's Titanium Shop Snips. They're very strong, but work great when it comes to cutting the tough plastic. BE CAREFUL! Cutting through hard plastics can be a little tricky, so please make sure you're being safe!
On each container, we'll make roughly 4 cuts: three drainage holes, and one large cut around the center of the container. Do not completely cut the container in half. By leaving a "hinge", the container will be easier to open and close later in the season.
After preparing the container, add soil. In my milk jugs, I use an organic potting soil. Some people prefer to make their own "mix" of seed starting medium, but things like "Miracle Grow" also work very well.
That’s it, folks! Leave your seedy jugs outside with the (with the top cap off) and wait for them to germinate. Make sure you place them somewhere that rain and snow can fall into them and animals won’t try to get into them. If you have any questions, feel free to ask them in the comments below. Sometimes when I write these posts, I start taking things for granted and forget to mention important keys. Make sure you label your jugs all over the place, since they are outside, the elements almost always wash away the markers.
Even though there are a lot of positives about winter sowing, there are a few things to watch out for which may cause you to fail. More specifically; making sure that containers remain moist at all times, that they don't get too hot, and that plants don't become root-bound in the containers. Though these can be an issue, the problems are generally very easy to avoid. Be sure not to sow too many seeds into one container, as well. This will ensure that transplanting will be super easy!
My first year winter sowing, it was definitely hard to believe that this would work. To say I was "skeptical" is definitely an understatement. Imagine my surprise and delight when the first sprouts began to emerge from their containers in early March! So happy!
Thank goodness! No more starting seeds in my living room, and no more potting soil in the carpet! (LOL!)
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9 Questions on This ProjectSee All
AnswersHow do you know when to start this, I know in my Zone (4 A) it is way to early, it is still below zero at night and maybe teens during the day if...
AnswersI'm in Michigan and it's in the 30's right now and winter isn't over, it could go back in the teens and more snow wouldn't that kill the plants?<...