Rimouski, QC — Planting Guide
Rimouski is in USDA Zone 5a. The average last spring frost is May 4 and the first fall frost is October 11, giving you a growing season of approximately 160 days.
At an elevation of 114 ft, Rimouski receives approximately 31.2 in of rainfall annually. Summer highs average 73°F with winter lows around 10°F. The predominant soil type is Gray-Brown Podzol.
🌡️ Zone
5a (-20°F to -15°F min)
❄️ Last Frost
May 4
🍂 First Frost
October 11
📅 Growing Season
160 days
⛰️ Elevation
114 ft
🌧️ Annual Rainfall
31.2 in
Monthly Watering Calendar for Rimouski
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
Quick context: Plants need different amounts of water at different growth stages — heavy at flowering and fruit-set, lighter at establishment. Rimouski's 31" annual rainfall is your starting math; the timing tells you when natural rain will cover you and when you need to step in.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 1.5 in | 6 days | — | None |
| Feb | 1.2 in | 6 days | — | None |
| Mar | 2 in | 8 days | — | None |
| Apr | 3.4 in | 8 days | 0.9 in | Moderate |
| May | 3.1 in | 10 days | 1.2 in | Moderate |
| Jun | 4.1 in | 8 days | 0.2 in | Low |
| Jul | 3.4 in | 7 days | 0.9 in | Moderate |
| Aug | 3.4 in | 8 days | 0.9 in | Moderate |
| Sep | 3 in | 7 days | 1.3 in | Moderate |
| Oct | 2.4 in | 6 days | 1.9 in | High |
| Nov | 2.2 in | 9 days | — | None |
| Dec | 1.6 in | 7 days | — | None |
Annual total: 31.3 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.
Rimouski Soil Profile
Soil Type
Gray-Brown Podzol
Soil pH
6.0-7.0
Drainage
Well Drained
Gardening Difficulty Score
Rimouski is a very forgiving place to garden. Most plants thrive here with minimal effort.
Local Gardening Help in Rimouski
Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to Rimouski's climate and soil.
County Extension Office
Rimouski Extension Office
Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.
Master Gardener Program
Free gardening help from trained volunteers
Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.
Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.
Soil Testing
Available through your extension office
Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.
Services Available in Rimouski
Finding local nurseries & garden centers in Rimouski
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Rimouski's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.
How to Find Them
Search for "nurseries near Rimouski QC" or "garden center Rimouski" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.
Community gardens & gardening groups
Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden Rimouski QC" or check your extension office and local parks department. Facebook groups like "Rimouski Gardeners" or "Quebec Gardening" are also excellent for local advice and plant swaps.
What to Plant After Your Harvest
After your first crops finish, use the remaining frost-free days to grow a second round.
Show 6 more succession options
Sunlight & Day Length in Rimouski
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
The practical takeaway: Onions are a great example of why day length matters. They "bulb up" only when daylight hits a specific number of hours — plant the wrong variety (short-day in the north, long-day in the south) and you'll get tiny bulbs no matter how well you grow them. Rimouski's latitude determines which onion varieties succeed.
Longest Day
15.9 hours
Summer solstice daylight
Shortest Day
8.1 hours
Winter solstice daylight
Peak Sun Hours
10.4 hr/day peak (summer)
Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.
Onion tip: Your long summer days (14+ hours) support long-day onion varieties like Walla Walla, Sweet Spanish, and Ailsa Craig.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 8.5 hr | 3.6 hr | Short day |
| February | 9.9 hr | 4.2 hr | Short day |
| March | 11.6 hr | 5.4 hr | Short day |
| April | 13.4 hr | 6.9 hr | Neutral |
| May | 15 hr | 8.4 hr | Long day |
| June | 15.9 hr | 9.8 hr | Long day |
| July | 15.5 hr | 10.4 hr | Long day |
| August | 14.1 hr | 8.4 hr | Long day |
| September | 12.3 hr | 6.8 hr | Neutral |
| October | 10.5 hr | 5.4 hr | Short day |
| November | 8.9 hr | 3.6 hr | Short day |
| December | 8.1 hr | 3 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Rimouski
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Why it matters: Watching soil temperature (not air) is the single biggest upgrade most new gardeners can make. Rimouski's typical curve helps you plan — but a $5 soil thermometer in the bed beats any average.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from Jun through Sep.
Best Month to Compost
Jun
Microbial activity peaks when soil is warm.
Active Composting
6 months
Solid season. Piles go dormant in winter.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 24°F | 29°F | ❄️ Dormant | ~36 weeks |
| Feb | 21°F | 29°F | ❄️ Dormant | ~36 weeks |
| Mar | 30°F | 34°F | ❄️ Dormant | ~36 weeks |
| Apr | 46°F | 42°F | 🐢 Slow | ~24 weeks |
| May | 56°F | 54°F | ♻️ Active | ~14 weeks |
| Jun | 69°F | 62°F | 🔥 Peak | ~8 weeks |
| Jul | 76°F | 69°F | 🔥 Peak | ~8 weeks |
| Aug | 77°F | 72°F | 🔥 Peak | ~8 weeks |
| Sep | 71°F | 68°F | 🔥 Peak | ~8 weeks |
| Oct | 56°F | 58°F | ♻️ Active | ~14 weeks |
| Nov | 42°F | 49°F | 🐢 Slow | ~24 weeks |
| Dec | 28°F | 37°F | ❄️ Dormant | ~36 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Rimouski
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
The practical takeaway: Pest pressure scales with warmth and humidity. Hot humid Rimouski sees year-round bugs and fungal disease; cold dry regions see almost none. A high pest score means crop rotation, resistant varieties, and a weekly pest-watch routine from day one.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 5 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash bugs | Low | Jun, Jul, Aug |
| Tomato hornworms | Low | Jul, Aug |
| Cabbage loopers | Moderate | May, Jun, Jul, Aug |
Organic pest management tips
- Maintain healthy soil with regular compost additions to build natural pest resistance
- Practice crop rotation annually to break pest cycles
- Encourage beneficial insects with flowering herbs like dill, fennel, and yarrow
Cover Crops for Rimouski
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
What this means for you: A fall-planted cover crop in Rimouski is the closest thing to free soil amendment. Plant cereal rye or hairy vetch after harvest; chop it down before it flowers in spring; the soil it leaves behind out-grows any store-bought compost.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 7 | Aug 9 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | May 10 | Aug 9 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Apr 4 | Aug 16 | ✓ Yes | Living mulch, fixes nitrogen, permanent ground cover |
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Sunflowers | May 26 | Sep 20 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (6 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 16 | Apr 20 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Aug 28 | Apr 13 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 31 | Apr 13 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 2 | Apr 13 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 19 | Apr 20 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 17 | Apr 20 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Rimouski
Why it matters: Wind affects three things gardeners forget: how fast soil dries (more wind = more watering), whether pollinators can work (calm beats gusty), and whether your trellised crops stay upright. Rimouski sees 8.2 mph on average — a forgiving baseline.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 13 mph Summer: 8 mph
Fall: 9 mph Winter: 12 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
4.7/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (170 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting in Rimouski
How much water you can collect, when to collect it, and what size system you need for your garden.
Why it matters: Rainwater is unchlorinated, unfluoridated, and at ambient temperature — plants actually prefer it. Rimouski's 31" annual rainfall means even a small 50-gallon barrel catches enough for a few weeks of garden watering between storms.
Annual Collection
15,599 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
6 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 1,750 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Apr, Jun, Jul, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Feb, Dec
Dry months when you'll rely on stored water — size your storage for this gap.
Rainwater collection tips for your area
- Your county receives approximately 31.3 inches of rain per year
- A 1,000 sq ft roof can collect roughly 15,599 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jan, Feb, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Rimouski
Soil Type
Gray-Brown Podzol
Amend with compost each season to maintain fertility and structure.
Watering Needs
Moderate rainfall (31.2 in.) — plan to water 1–2 times per week during the growing season.
Season Tips
160-day frost-free season
Start warm-season crops indoors and focus on short-season varieties. Cold frames extend your season by 3–4 weeks in fall.
Your Free Printable Garden Planner
Plan every bed, every planting, every harvest — in one place. This 22-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.
Recommended for Your Garden
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Get instant, accurate soil pH readings to fine-tune your amendments.
Boost soil fertility and structure with rich, well-aged organic compost.
🥬 Vegetables to Grow in Rimouski
105 vegetables that grow well in Zone 5a with planting dates for Rimouski.
Show all 105 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 30 | May 11 | May 18 | — | Aug 10 – Sep 14 | 80–100 |
| Amaranth | Mar 9 | May 11 | May 18 | — | Aug 17 – Oct 5 | 90–120 |
| Arugula | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 8 – Aug 10 | 30–50 |
| Asparagus | — | — | May 18 | — | — | 730–1095 |
| Beets | — | Apr 20 | — | Aug 2 | Jun 15 – Jul 13 | 50–70 |
| Belgian Endive | Mar 30 | Apr 20 | May 4 | Aug 2 | Aug 24 – Oct 19 | 110–150 |
| Bitter Melon | Mar 9 | May 11 | May 18 | — | Jul 20 – Aug 31 | 60–90 |
| Black Beans | — | May 11 | — | — | Aug 10 – Sep 28 | 90–120 |
| Bok Choy | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 15 – Jul 20 | 40–60 |
| Broccoli | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 6 – Aug 17 | 60–90 |
| Broccoli Rabe | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 15 – Jul 20 | 40–60 |
| Brussels Sprouts | Mar 30 | Apr 20 | May 4 | Aug 2 | Aug 3 – Sep 28 | 90–130 |
| Butternut Squash | Mar 30 | May 11 | May 18 | — | Aug 17 – Sep 21 | 85–110 |
| Cabbage | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 6 – Aug 31 | 60–100 |
| Calabash | Mar 9 | May 11 | May 18 | — | Aug 10 – Oct 5 | 80–120 |
| Carrots | — | Apr 20 | — | Aug 2 | Jun 22 – Jul 27 | 60–80 |
| Cauliflower | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Aug 31 | 55–100 |
| Celeriac | Mar 30 | Apr 20 | May 4 | Aug 2 | Aug 17 – Sep 21 | 100–120 |
| Celery | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 27 – Sep 21 | 80–120 |
| Celtuce | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 6 – Aug 17 | 60–90 |
| Chard | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Aug 17 | 50–60 |
| Chickpeas | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 27 – Sep 7 | 80–110 |
| Chicory | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 6 – Aug 17 | 60–85 |
| Chinese Cabbage | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Jul 27 | 50–70 |
| Christmas Lima Beans | Mar 9 | May 11 | May 18 | — | Aug 10 – Sep 14 | 80–100 |
| Collard Greens | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Aug 31 | 55–75 |
| Corn | — | May 11 | — | — | Jul 13 – Sep 7 | 60–100 |
| Cowpeas | — | May 11 | — | — | Jul 13 – Aug 24 | 60–90 |
| Cress | Mar 30 | Apr 20 | May 4 | Aug 2 | May 18 – Jun 8 | 14–21 |
| Crookneck Squash | Mar 30 | May 11 | May 18 | — | Jul 6 – Aug 3 | 45–60 |
| Crosne | — | Apr 20 | — | Aug 2 | Sep 21 – Oct 5 | 150–200 |
| Cucumber | Mar 30 | May 11 | May 18 | — | Jul 13 – Sep 7 | 50–70 |
| Daikon | — | Apr 20 | — | Aug 2 | Jun 15 – Jul 13 | 50–70 |
| Delicata Squash | Mar 30 | May 11 | May 18 | — | Aug 10 – Sep 14 | 80–100 |
| Edamame | — | May 11 | — | — | Jul 27 – Sep 7 | 75–100 |
| Eggplant | Feb 23 | May 11 | May 18 | — | Jul 27 – Sep 28 | 65–85 |
| Endive | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 22 – Jul 27 | 45–65 |
| Escarole | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Jul 27 | 50–70 |
| Fava Beans | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 20 – Aug 31 | 75–100 |
| Fennel | Mar 9 | May 11 | May 18 | — | Jul 20 – Aug 31 | 60–90 |
| Garlic | — | — | — | Aug 30 | Nov 29 – Feb 14 | 90–240 |
| Green Beans | — | May 11 | — | — | Jul 6 – Aug 31 | 50–65 |
| Horseradish | — | — | May 18 | — | Sep 21 – Nov 2 | 120–180 |
| Hot Peppers | Feb 23 | May 11 | May 18 | — | Jul 27 – Nov 2 | 70–120 |
| Hubbard Squash | Mar 30 | May 11 | May 18 | — | Aug 31 – Oct 5 | 100–120 |
| Kabocha | Mar 30 | May 11 | May 18 | — | Aug 17 – Sep 14 | 85–100 |
| Kai Lan | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 22 – Jul 20 | 45–60 |
| Kale | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Aug 24 | 50–70 |
| Kidney Beans | — | May 11 | — | — | Aug 10 – Sep 14 | 85–110 |
| Kohlrabi | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 22 – Jul 27 | 45–65 |
| Komatsuna | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 8 – Jul 13 | 35–50 |
| Leeks | Mar 30 | Apr 20 | May 4 | Aug 2 | Aug 3 – Oct 19 | 90–150 |
| Lentils | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 27 – Sep 7 | 80–110 |
| Lettuce | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 8 – Aug 17 | 30–60 |
| Lima Beans | — | May 11 | — | — | Jul 13 – Aug 24 | 60–90 |
| Mache | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 15 – Jul 20 | 40–60 |
| Melon | Mar 30 | May 11 | May 18 | — | Jul 27 – Sep 14 | 70–100 |
| Microgreens | Mar 30 | Apr 20 | May 4 | Aug 2 | May 11 – Jun 8 | 7–21 |
| Mitsuba | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jun 22 – Aug 17 | 50–70 |
| Mizuna | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 8 – Jul 6 | 30–45 |
| Mustard Greens | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 8 – Aug 10 | 30–50 |
| Napa Cabbage | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Aug 3 | 55–75 |
| New Zealand Spinach | Mar 9 | May 11 | May 18 | — | Jul 13 – Aug 10 | 55–70 |
| Okra | Mar 9 | May 11 | May 18 | — | Jul 13 – Sep 7 | 50–65 |
| Onion | Mar 30 | Apr 20 | May 4 | Aug 2 | Aug 3 – Sep 21 | 90–120 |
| Pac Choi | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 15 – Jul 13 | 40–55 |
| Parsnip | — | Apr 20 | — | Aug 2 | Aug 3 – Sep 14 | 100–130 |
| Patty Pan Squash | Mar 30 | May 11 | May 18 | — | Jul 6 – Aug 3 | 45–60 |
| Peas | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Aug 24 | 55–70 |
| Peppers | Feb 23 | May 11 | May 18 | — | Jul 20 – Sep 28 | 60–90 |
| Pole Beans | Mar 9 | May 11 | May 18 | — | Jul 13 – Sep 7 | 55–70 |
| Potatoes | Mar 9 | May 11 | May 18 | — | Jul 27 – Oct 5 | 70–120 |
| Pumpkin | Mar 30 | May 11 | May 18 | — | Aug 17 – Oct 5 | 85–120 |
| Purslane | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 15 – Jul 20 | 40–60 |
| Radicchio | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 6 – Aug 10 | 60–80 |
| Radish | — | Apr 20 | — | Aug 2 | May 18 – Jun 8 | 22–35 |
| Rhubarb | — | — | May 25 | — | — | 365–730 |
| Romanesco | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 20 – Aug 31 | 75–100 |
| Rutabaga | — | Apr 20 | — | Aug 2 | Jul 13 – Aug 17 | 80–100 |
| Salsify | — | Apr 20 | — | Aug 2 | Aug 3 – Sep 14 | 100–130 |
| Savoy Cabbage | Mar 30 | Apr 20 | May 4 | Aug 2 | Jul 13 – Sep 7 | 70–110 |
| Scallions | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Jul 27 | 50–70 |
| Scarlet Runner Beans | Mar 9 | May 11 | May 18 | — | Jul 20 – Aug 24 | 60–80 |
| Shallot | Mar 30 | Apr 20 | May 4 | Aug 2 | Aug 3 – Sep 21 | 90–120 |
| Shiso | Mar 16 | May 11 | May 18 | — | Jul 13 – Sep 7 | 50–70 |
| Snap Peas | Mar 9 | May 11 | May 18 | — | Jul 13 – Sep 7 | 55–70 |
| Snow Peas | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 29 – Aug 24 | 50–65 |
| Soybeans | — | May 11 | — | — | Aug 3 – Sep 28 | 80–120 |
| Spaghetti Squash | Mar 30 | May 11 | May 18 | — | Aug 17 – Sep 14 | 85–100 |
| Spinach | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 8 – Aug 10 | 35–50 |
| Squash (Summer) | Mar 30 | May 11 | May 18 | — | Jul 6 – Sep 7 | 45–65 |
| Squash (Winter) | Mar 30 | May 11 | May 18 | — | Aug 10 – Oct 5 | 80–120 |
| Sunchoke | — | — | May 18 | — | Sep 7 – Nov 2 | 110–150 |
| Sweet Corn | — | May 11 | — | — | Jul 13 – Aug 24 | 60–90 |
| Sweet Potatoes | Mar 9 | May 11 | May 18 | — | Aug 17 – Oct 5 | 90–120 |
| Tatsoi | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 8 – Jul 13 | 35–50 |
| Tomatillo | Mar 9 | May 11 | May 18 | — | Jul 20 – Sep 28 | 60–85 |
| Tomatoes | Mar 9 | May 11 | May 18 | — | Jul 20 – Sep 28 | 60–85 |
| Turnip | — | Apr 20 | — | Aug 2 | Jun 1 – Jul 6 | 40–60 |
| Watercress | Mar 30 | Apr 20 | May 4 | Aug 2 | Jun 15 – Jul 20 | 40–60 |
| Watermelon | Mar 30 | May 11 | May 18 | — | Jul 27 – Sep 14 | 70–100 |
| Wax Beans | — | May 11 | — | — | Jul 6 – Aug 31 | 50–65 |
| Winter Melon | Mar 9 | May 11 | May 18 | — | Aug 17 – Oct 5 | 90–120 |
| Yard Long Beans | Mar 9 | May 11 | May 18 | — | Jul 13 – Aug 24 | 55–80 |
| Zucchini | Mar 30 | May 11 | May 18 | — | Jul 6 – Aug 31 | 45–60 |
🍓 Fruits to Grow in Rimouski
27 fruits that grow well in Zone 5a with planting dates for Rimouski.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 25 | — | Aug 24 – Nov 9 | 90–180 |
| Aronia | — | — | May 25 | — | — | 730–1095 |
| Blackberries | — | — | May 25 | — | — | 365–730 |
| Blueberries | — | — | May 25 | — | — | 730–1095 |
| Boysenberries | — | — | May 25 | — | — | 365–730 |
| Cantaloupe | — | — | May 25 | — | Aug 3 – Sep 7 | 70–90 |
| Che Fruit | — | — | May 25 | — | — | 1095–1825 |
| Cranberries | — | — | May 25 | — | — | 730–1095 |
| Currants | — | — | May 25 | — | — | 730–1095 |
| Elderberries | — | — | May 25 | — | — | 730–1095 |
| Goji Berries | — | — | May 25 | — | — | 730–1095 |
| Gooseberries | — | — | May 25 | — | — | 730–1095 |
| Grapes | — | — | May 25 | — | — | 730–1095 |
| Ground Cherry | — | — | May 25 | — | Aug 3 – Sep 28 | 65–80 |
| Hardy Kiwi | — | — | May 25 | — | — | 1095–1825 |
| Haskaps | — | — | May 25 | — | — | 730–1095 |
| Honeydew | — | — | May 25 | — | Aug 17 – Sep 28 | 80–110 |
| Jostaberry | — | — | May 25 | — | — | 730–1095 |
| Lingonberries | — | — | May 25 | — | — | 730–1095 |
| Medlar | — | — | May 25 | — | — | 1095–1825 |
| Mulberries | — | — | May 25 | — | — | 730–1825 |
| Pawpaw | — | — | May 25 | — | — | 1095–2555 |
| Persimmon | — | — | May 25 | — | — | 1095–2555 |
| Quince | — | — | May 25 | — | — | 1095–1825 |
| Raspberries | — | — | May 25 | — | — | 365–730 |
| Serviceberries | — | — | May 25 | — | — | 730–1095 |
| Strawberries | — | — | May 25 | — | Aug 24 – Nov 9 | 90–365 |
🌿 Herbs to Grow in Rimouski
34 herbs that grow well in Zone 5a with planting dates for Rimouski.
Show all 34 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 30 | Apr 20 | Apr 27 | Aug 2 | — | 365–730 |
| Anise | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jul 27 – Oct 12 | 90–120 |
| Basil | Mar 16 | May 11 | May 18 | — | Jul 13 – Sep 14 | 50–75 |
| Bee Balm | — | — | May 11 | — | Aug 10 – Oct 26 | 90–120 |
| Borage | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jun 22 – Aug 10 | 50–60 |
| Caraway | Mar 30 | Apr 20 | Apr 27 | Aug 2 | — | 365–450 |
| Catnip | — | — | May 11 | — | Jul 13 – Sep 14 | 60–80 |
| Chamomile | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jun 29 – Sep 7 | 60–90 |
| Chervil | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jun 8 – Aug 10 | 40–60 |
| Chives | — | — | May 11 | — | Jul 13 – Sep 21 | 60–90 |
| Cilantro | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jun 8 – Aug 10 | 40–60 |
| Comfrey | — | — | May 11 | — | Jul 13 – Sep 21 | 60–90 |
| Cumin | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Aug 10 – Oct 12 | 100–120 |
| Dill | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jun 8 – Aug 10 | 40–60 |
| Epazote | Mar 16 | May 11 | May 18 | — | Jul 6 – Aug 31 | 45–60 |
| Fennel (herb) | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jun 29 – Sep 7 | 60–90 |
| Feverfew | — | — | May 11 | — | Aug 10 – Oct 26 | 90–120 |
| Garlic Chives | — | — | May 11 | — | Jul 13 – Sep 21 | 60–90 |
| Horehound | — | — | May 11 | — | Jul 27 – Sep 21 | 75–90 |
| Hyssop | — | — | May 11 | — | Jul 20 – Sep 21 | 70–90 |
| Lemon Balm | — | — | May 11 | — | Jul 13 – Aug 31 | 60–70 |
| Lemon Thyme | — | — | May 11 | — | Jul 20 – Sep 21 | 70–90 |
| Lovage | — | — | May 11 | — | Jul 20 – Sep 21 | 70–90 |
| Mint | — | — | May 11 | — | Jul 13 – Sep 21 | 60–90 |
| Oregano | — | — | May 11 | — | Jul 13 – Sep 21 | 60–90 |
| Parsley | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jun 29 – Aug 31 | 60–80 |
| Rue | — | — | May 11 | — | Jul 20 – Sep 21 | 70–90 |
| Sage | — | — | May 11 | — | Jul 27 – Sep 21 | 75–90 |
| Savory | — | — | May 11 | — | Jul 6 – Aug 31 | 50–70 |
| Sorrel | Mar 30 | Apr 20 | Apr 27 | Aug 2 | Jun 8 – Aug 10 | 40–60 |
| Tarragon | — | — | May 11 | — | Jul 13 – Sep 21 | 60–90 |
| Thai Basil | Mar 16 | May 11 | May 18 | — | Jul 13 – Sep 14 | 50–75 |
| Thyme | — | — | May 11 | — | Jul 20 – Sep 21 | 70–90 |
| Valerian | — | — | May 11 | — | Sep 14 – Oct 26 | 120–180 |
🌸 Flowers to Grow in Rimouski
51 flowers that grow well in Zone 5a with planting dates for Rimouski.
Show all 51 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 16 | May 11 | May 11 | — | Jul 6 – Sep 28 | 60–75 |
| Alliums | — | — | — | Aug 30 | Oct 4 – Nov 1 | 28–42 |
| Anemones | Apr 6 | — | May 4 | — | Jun 15 – Jul 13 | 90–120 |
| Astilbe | Mar 2 | — | May 18 | — | Aug 3 – Oct 5 | 70–100 |
| Bachelor's Button | Mar 23 | Apr 13 | May 4 | — | Jul 6 – Sep 14 | 60–90 |
| Begonias | Feb 23 | — | May 11 | — | Jul 20 – Oct 12 | 70–90 |
| Black-eyed Susan | Mar 2 | May 4 | May 18 | — | Aug 3 – Nov 2 | 60–80 |
| Bleeding Hearts | Mar 2 | — | May 18 | — | Jul 13 – Aug 24 | 60–90 |
| Calendula | Mar 23 | Apr 13 | May 4 | — | Jun 22 – Sep 14 | 50–70 |
| Celosia | Mar 30 | May 18 | May 18 | — | Jul 20 – Oct 19 | 60–90 |
| Columbine | Mar 2 | May 18 | May 18 | — | Jul 13 – Aug 24 | 70–100 |
| Coreopsis | Mar 2 | May 11 | May 18 | — | Jul 27 – Nov 2 | 60–80 |
| Cosmos | Apr 6 | May 11 | May 11 | — | Jul 20 – Oct 12 | 60–90 |
| Crocus | — | — | — | Aug 30 | Jul 12 – Aug 2 | 10–20 |
| Daffodils | — | — | — | Aug 30 | Jul 19 – Aug 9 | 20–40 |
| Dahlias | Apr 6 | May 11 | May 11 | — | Aug 3 – Oct 26 | 70–120 |
| Daylily | Mar 2 | — | May 18 | — | Aug 10 – Nov 2 | 60–90 |
| Dianthus | Mar 2 | Apr 6 | Apr 20 | — | Jun 8 – Aug 24 | 60–80 |
| Echinacea (Purple Coneflower) | Mar 2 | May 18 | May 18 | — | Aug 10 – Nov 2 | 70–90 |
| Foxglove | Mar 2 | May 18 | May 18 | — | Jul 13 – Aug 24 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 9 | May 18 | May 18 | — | Jul 27 – Nov 16 | 70–100 |
| Geraniums | Feb 23 | — | May 11 | — | Jul 20 – Oct 12 | 70–100 |
| Gladiolus | — | May 11 | May 11 | — | Aug 3 – Oct 26 | 70–100 |
| Hostas | Feb 23 | — | May 18 | — | Aug 10 – Nov 2 | 60–90 |
| Hyacinths | — | — | — | Aug 30 | Aug 9 – Sep 6 | 14–28 |
| Hydrangeas | Feb 23 | — | May 18 | — | Aug 3 – Oct 19 | 90–150 |
| Impatiens | Mar 9 | — | May 11 | — | Jul 20 – Oct 12 | 60–75 |
| Irises | — | Division | May 18 | — | Jul 13 – Aug 17 | 60–100 |
| Larkspur | — | Apr 6 | — | — | Jun 15 – Aug 10 | 60–90 |
| Lavender | Feb 23 | — | May 25 | — | Aug 3 – Sep 14 | 90–120 |
| Lilies | — | Division | May 18 | — | Jul 27 – Oct 19 | 70–120 |
| Lobelia | Feb 23 | — | Apr 27 | — | Jun 22 – Aug 31 | 70–80 |
| Lupine | Mar 2 | May 18 | May 18 | — | Jul 13 – Aug 24 | 75–100 |
| Marigolds | Mar 23 | May 11 | May 11 | — | Jul 6 – Sep 28 | 50–70 |
| Nasturtium | Apr 6 | May 11 | May 11 | — | Jul 6 – Oct 12 | 55–65 |
| Pansy | Feb 23 | — | May 4 | — | Jun 29 – Aug 24 | 70–90 |
| Peonies | — | Division | May 18 | — | Jul 27 – Sep 7 | 90–120 |
| Petunia | Mar 9 | — | May 11 | — | Jul 20 – Oct 12 | 70–90 |
| Phlox | Mar 2 | May 18 | May 18 | — | Aug 3 – Oct 19 | 80–110 |
| Portulaca | Mar 30 | May 18 | May 18 | — | Jul 6 – Oct 5 | 50–70 |
| Roses | Feb 23 | — | May 18 | — | Aug 3 – Nov 2 | 90–180 |
| Salvia | Mar 2 | — | May 11 | — | Jul 20 – Oct 12 | 70–90 |
| Sedum (Stonecrop) | Mar 2 | — | May 18 | — | Sep 14 – Nov 16 | 60–90 |
| Snapdragon | Feb 23 | Apr 20 | May 4 | — | Jul 13 – Sep 14 | 70–100 |
| Sunflower | Apr 13 | May 11 | May 11 | — | Aug 3 – Oct 12 | 70–100 |
| Sweet Alyssum | Mar 16 | Apr 20 | May 4 | — | Jun 15 – Aug 24 | 45–60 |
| Sweet Pea | Mar 23 | Mar 30 | May 4 | — | Jul 20 – Sep 21 | 65–85 |
| Tulips | — | — | — | Aug 30 | Aug 2 – Aug 23 | 15–30 |
| Vinca (Annual) | Feb 16 | — | May 18 | — | Jul 27 – Oct 12 | 70–90 |
| Yarrow | Mar 2 | May 4 | May 18 | — | Jul 27 – Nov 2 | 60–90 |
| Zinnia | Apr 6 | May 11 | May 11 | — | Jul 20 – Oct 12 | 60–70 |
Monthly Planting Guide for Rimouski
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Rimouski.
Frequently Asked Questions
What planting zone is Rimouski, QC?
Rimouski is in USDA Hardiness Zone 5a. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.
When is the last frost in Rimouski, QC?
Based on 30 years of NOAA weather station data, the median last spring frost in Rimouski falls around May 4. Plan transplants and direct-sow dates relative to this date.
When is the first fall frost in Rimouski, QC?
The median first fall frost in Rimouski arrives around October 11. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
Is Rimouski a good location for home gardening?
Rimouski scores 95/100 (Excellent) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. This is an above-average location for home gardening with relatively predictable growing conditions.
Your Rimouski Garden Planner — Free
A 22-page printable planner built for Rimouski (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.
The Gardener's Encyclopedia to Companion Planting
The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Seed Saving & Storage Guide
Most saved seeds go bad before next season. This shows exactly when to pick, how to dry, and where to store seeds from 200 plants so yours don't.
- 200 plants, step-by-step: life cycle, pollination type, isolation
- Exact temperature + humidity ranges that keep seeds viable
- Bonus: searchable Google Sheets tracker + custom GPT assistant
Composting Guide for Homesteaders
Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.
- 14 sections on composting methods, soil science, and troubleshooting
- The 7-step hot-compost system from start to finish
- Bonus tools: troubleshooting chart, safety guide, monitoring log