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When to Plant Microgreens in Trois-Rivieres, QC

Microgreens are young seedlings of vegetables and herbs harvested at the cotyledon or first true leaf stage. They pack concentrated flavors and nutrients in a tiny package.

Trois-Rivieres, Quebec is in USDA Zone 5b. The average last spring frost is April 24 and the first fall frost is October 8, giving you a growing season of approximately 167 days.

At an elevation of 49 feet, Trois-Rivieres receives approximately 23.5 inches of rainfall annually with predominantly gray-brown podzol soil. Summer highs average 75°F, so choose short-season varieties of Microgreens to ensure they mature before fall.

Trois-Rivieres, QC (Zone 5b) Moderate season
167 days
Last Spring Frost April 24
167 growing days
First Fall Frost October 8

Trois-Rivieres Soil Profile

Soil Type

Gray-Brown Podzol

Soil pH

6.0-7.0

Drainage

Well Drained

Microgreens Planting Timeline — Trois-Rivieres, QC

Microgreens Planting Calendar

Activity When Date Range
Start Indoors March 20 Mar 20 – Apr 3
Transplant Outdoors April 24 Apr 24 – May 8
Direct Sow April 10 Apr 10 – May 1
Harvest May 1 May 1 – May 29
Fall Sowing July 30 Jul 30 – Aug 13

Plant 0.5" deep · 2" apart · Rows 6" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow Harvest
June
July Fall Sowing
August Fall Sowing
September
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

7–21 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 5b

📆 Growing Season

167 days in Trois-Rivieres

Growing Tips for Trois-Rivieres

Sow seeds densely on shallow trays of moist growing medium. Cover until germination, then provide light. Harvest with scissors when 1-3 inches tall. Grow year-round indoors.

Frequently Asked Questions

When should I plant Microgreens in Trois-Rivieres, QC?

Trois-Rivieres is in Zone 5b with an average last frost of April 24. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Trois-Rivieres, QC?

Trois-Rivieres, Quebec is in USDA Hardiness Zone 5b. The average last spring frost is April 24 and first fall frost is October 8.

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Your Trois-Rivieres Garden Planner — Free

A 22-page printable planner built for Trois-Rivieres (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Trois-Rivieres, QC. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.