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Gardening in St. John's, Newfoundland
A cool, maritime season with slow spring warm-up. Summers are mild rather than hot, which suits cool-season crops and challenges heat-lovers.
Typical last spring frost
~Jun 1
Typical first fall frost
~Oct 12
Frost-free season
~133 days
Hardiness zone
5b
demo estimate Source pending verification. Frost dates vary year to year.
Wind
Wind is a defining factor. Exposed hilltop and coastal yards behave very differently from sheltered downtown lots.
Microclimates
Sheltered south-facing walls and fenced yards can run noticeably warmer than open ground a short distance away.
Crops well suited here
Local planting calendar
For a sunny, somewhat sheltered bed with indoor seed starting.
| Crop | Start indoors | Sow / plant out |
|---|---|---|
| Broccoli | Apr 13 | May 25 |
| Cauliflower | Apr 20 | Jun 1 |
| Cabbage | Apr 6 | May 18 |
| Parsley | Mar 30 | May 25 |
| Potatoes | — | Jun 1 |
| Carrots | — | May 18 |
| Beets | — | May 25 |
| Turnips | — | May 25 |
| Radishes | — | May 11 |
| Lettuce | Apr 20 | May 18 |
| Spinach | — | May 11 |
| Kale | Apr 13 | May 18 |
| Swiss chard | — | May 25 |
| Peas | — | May 11 |
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