Seasonal Guide
A Guide to Spring Gardening Weather in Canada
When should you start planting? Learn how to track last frost dates and soil temperature in your Canadian region.
Last Updated
·
Written by WeatherCA Staff
Timing is everything when it comes to spring gardening in Canada.
Our short growing season makes spring planting exciting but risky. Late frost can wipe out sensitive seedlings overnight. Here is how to use weather data to plan your garden.
Understanding Last Frost Dates
The average last frost date varies significantly across Canada—from late April in Vancouver to late May or even early June in Ontario and Quebec. Seed packets often specify planting times relative to this date.
Monitoring Soil Temperature
Warm-season crops like tomatoes and peppers need soil temperatures of at least 15°C to thrive. Planting them too early in cold soil will stunt their growth, even if there is no frost.
