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February 7, 2011 · 6 Comments

How to Use the Winter Sowing Method to Start Seeds Outdoors

How to

It’s still a bit early for starting seeds indoors in the North, but I’ve been getting ready for it and setting out several winter-sowing containers. You’ll find a new how-to page on indoor seed starting on the header above, which gives the basics and a few tips based on good experiences (and bad ones) that I’ve had.

A couple of years ago, Northern Gardener ran an article by Michelle Mero Riedel on a seed starting technique called “winter sowing.” It was probably the most popular article we have run in the past five years. Basically, winter sowing is a way to start seeds outdoors.

winter sowing containers in snow

Winter sowing containers waiting for spring.

Here’s how you do it: Collect a bunch of clear plastic containers. Michelle often uses clear 1 gallon milk jugs. I also like the larger plastic containers that salad greens come in. You clean the containers, poke holes in the bottom and top, and fill them with 2-4 inches of very moist seed-starting mixture. Then plant your seeds, tape up the containers tight, and put the containers outdoors. Tip: Be sure to write what you have planted in the container in a permanent marker inside the container. That’s all you do until spring.

Come spring, you’ll start to see little seedlings in the containers. At that point, you’ll want to poke more holes or open the containers up a bit during the day to keep the plants from over-heating.  When the temperatures are warm enough, you just plant the seedlings in your garden or containers as you would any other plant starts.

Winter sowing works best for hardy perennials, I think, but some people use this method to start tomatoes and other plants. Since I have a meadow area that I plant out, I use winter sowing for additional plants for the meadow. This year, I started two kinds of lupines, a native coneflower (Rudbeckia laciniata) and tall rudbeckia (Rudbeckia hirta). These all do really well in winter sowing containers.

There’s an organization for winter sowers, as well, at this web site.

Related posts:

  1. Seed Starting Basics It’s still too early to start seeds indoors but that...
  2. Where Heirloom Seeds Got Started It’s hard to imagine more than 40 years back when...
  3. The Smother Method The smother method of starting a new garden is simple...
« Snow’s Insulation Power in Winter
Book Review: Attracting Native Pollinators »

Comments

  1. meemsnyc says

    February 7, 2011 at 11:21 pm

    I’m going to try winter sowing for the first time this winter. Looking forward to seeing the results.

  2. commonweeder says

    February 8, 2011 at 10:37 am

    This year I can start any seeds until April 1 when we return from a trip to our daughter in Texas. I am hoping that won’t be too late. I also think my new Front Garden can be planted with hardy greens in mid April.

  3. Amy (Get Busy Gardening!) says

    February 20, 2011 at 8:46 pm

    I have been winter sowing for the past several years and write about it quiet a bit on my blog. I live in MN too! Glad to find a fellow Minnesota garden blogger!!

    Amy (Get Busy Gardening!)

  4. Mary Schier says

    February 21, 2011 at 7:58 am

    Thanks for stopping by, Amy. I’ll add your blog to my sidebar.

Trackbacks

  1. Winter Sowing Seeds for Your Vegetable Garden says:
    January 14, 2013 at 9:05 am

    […] written about winter sowing, so for how-to instructions check out this article by Terry Yockey or this one from the My Northern Garden blog. Or Eric Johnson’s article on winter sowing tomatoes. Of […]

  2. Winter Sowing for Flowers and Vegetables - My Northern Garden says:
    February 15, 2021 at 10:26 am

    […] are for perennial flowers, those that will come back year after year. I used this method to start many wildflowers for my former […]

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Lola is the only one allowed in the garden beds ar Lola is the only one allowed in the garden beds around here until about, oh, April 15, maybe later. It’s so, so, so tempting to go clomping 🥾around in the garden during these warm March weeks in Minnesota. The ground is thawing but it’s still soft and easily compacted. 

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