A short, cold-bracketed season
Last spring frost and first fall frost are weeks apart in much of the country. Seeds are often started indoors so transplants are ready the moment the risk of frost passes.
Garden Paper collects working notes for people who grow food and ornamentals from seed indoors and move them out to balconies, terraces and narrow yards. The focus is short seasons, container limits and the swing between indoor warmth and outdoor cold that defines gardening across most of Canada.
Most questions from balcony and windowsill growers in Canada come back to the same constraints. These pages work through them with specific timing, container sizes and species rather than general advice.
Last spring frost and first fall frost are weeks apart in much of the country. Seeds are often started indoors so transplants are ready the moment the risk of frost passes.
A balcony plant lives in a fixed volume of soil. Container depth, drainage and watering frequency decide what is realistic to grow above ground level.
Balconies dry faster than ground beds and can sit in building shadow for half the day. Reading your own light and wind is the first step before choosing seeds.
Counting back from your frost date, choosing a sowing medium, and giving seedlings enough light through a Canadian winter.
Read note →
Matching container size to crop, managing wind and water on an exposed balcony, and what grows well in pots.
Read note →
The week of gradual exposure that lets indoor seedlings survive the move outside without stalling or burning.
Read note →Across Canada the frost-free window ranges from roughly five months in the warmest coastal and southern pockets to far less at higher latitudes and elevations. Because of that spread, sowing and transplanting are planned from local frost dates rather than a fixed month.
Agriculture and Agri-Food Canada and Environment and Climate Change Canada publish regional climate and frost data that growers use to estimate their own last-spring and first-fall frost windows.
Garden Paper is a small reference site. Questions about a specific article or a correction to published content are welcome.