Winter sowing is a simple, reliable way to start native plants outdoors using the natural rhythm of the seasons. Many Ontario species need winter conditions to germinate. By sowing seeds in containers and placing them outside, you allow cold, moisture, and gradual spring warmth to do the work for you.
This method is low‑cost, low‑maintenance, and well‑suited to gardeners of all experience levels. It’s an excellent option for anyone growing native wildflowers, grasses, shrubs, or trees at home.
This guide will walk you through everything you need to get started, from choosing containers to caring for seedlings in spring.
Why Winter sowing Works
Native plants evolved with our winters. Snow cover, freeze–thaw cycles, and slow spring warming help break seed dormancy and signal the right time to grow. Winter sowing recreates these natural conditions in a controlled, accessible way.
Start Your Winter sowing Journey
The guides below walk you through each stage of the process. You can follow them in order or explore the topics you need.
Step‑by‑Step Guide
Learn how to prepare containers, sow seeds, and set everything outside for the winter.
Materials And ContainerS
Find out which containers work best, what soil to use, and how to label your seedlings so they stay organized through the season.
Thinning & Transplanting
When seedlings emerge in spring, they may be crowded. This guide explains how to thin, divide, and transplant them with minimal stress.
A Simple Way to Grow Native Plants
Winter sowing makes native plant gardening accessible to anyone. With a few containers and a handful of seeds, you can grow species that support pollinators, restore habitat, and bring seasonal beauty to your yard.
Explore the guides above to get started, and let winter help you grow a thriving native garden.
