Gardening in Grand Falls-Windsor, Newfoundland
Central Newfoundland · Central interior, warmer days, colder nights
Grand Falls-Windsor sits in the Exploits valley in Central Newfoundland. Summer days are warmer than on the coast, but nights can be cold and frost-prone. No Environment Canada frost normals are published for the town itself. LocalPlot uses Gander as a regional reference and says so clearly.
Growing season and frost
- Typical last spring frost
- Late May to early June
- average ~Jun 1
- Typical first fall frost
- Early to mid October
- average ~Oct 16
- Average frost-free season
- ~136 days
Ranges show the middle half of years: in roughly one year in four, the last frost comes later than the range, so keep cover handy.
regional referenceFrost data: Environment Canada climate normals 1981–2010, regional reference: Gander Int'l A (airport). Checked 2026-10-04. The Grand Falls station has no frost normals for 1981–2010. Using Gander Airport (about 90 km east) as a regional reference. Low ground along the Exploits valley may see later spring and earlier fall frosts. Historical averages are guidance, not a forecast for this year.
Local gardening challenges
- Frost risk in low ground along the river valley.
- Warm days followed by cold, clear nights can stress tender plants.
- Local frost timing is less certain because the town has no frost record of its own.
Wind and exposure
Usually less coastal wind; frost is the bigger concern. Cold air drains into low ground — slope position matters.
What tends to grow well
- Potatoes, carrots and other roots
- Cabbage, kale and broccoli
- Peas, beans and lettuce
Needs more strategy
- Wait for settled nights before planting tomatoes and squash, and keep cover ready
- Peppers and cucumbers benefit greatly from a greenhouse
How Grand Falls-Windsor differs
Treat the Gander-based dates as a rough guide. Valley-bottom gardens may see later spring and earlier fall frosts. Gardens higher on the slopes may do better than the reference suggests.
Right now in Grand Falls-Windsor
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Nearby: Gardening in Gander · Gardening in Corner Brook
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