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Corner Brook, NL — Planting Guide

Corner Brook is in Zone 5b. The average last spring frost is April 27 and the first fall frost is October 11, giving you a growing season of approximately 167 days.

At an elevation of 10 m, Corner Brook receives approximately 800 mm of rainfall annually. Summer highs average 23°C with winter lows around -12°C. The predominant soil type is Podzol.

🌡️ Zone

5b (-15°F to -10°F min)

❄️ Last Frost

April 27

🍂 First Frost

October 11

📅 Growing Season

167 days

⛰️ Elevation

10 m

🌧️ Annual Rainfall

800 mm

Corner Brook, NL Moderate season
167 days
Last Spring Frost April 27
167 growing days
First Fall Frost October 11

Monthly Watering Calendar

When you'll need to water your garden — based on average monthly rainfall vs. the ~25 mm/week most gardens need.

25mm/wk 0mm 33mm 64mm 97mm 127mm Jan 36mm Feb 30mm Mar 58mm +30mm Apr 79mm +20mm May 89mm +10mm Jun 99mm +15mm Jul 94mm +23mm Aug 86mm +33mm Sep 76mm +58mm Oct 51mm Nov 56mm Dec 43mm
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 36 mm 7 days None
Feb 30 mm 6 days None
Mar 58 mm 7 days None
Apr 79 mm 10 days 30 mm Moderate
May 89 mm 10 days 20 mm Moderate
Jun 99 mm 10 days 10 mm Low
Jul 94 mm 9 days 15 mm Moderate
Aug 86 mm 10 days 23 mm Moderate
Sep 76 mm 8 days 33 mm Moderate
Oct 51 mm 8 days 58 mm High
Nov 56 mm 8 days None
Dec 43 mm 7 days None

Annual total: 798 mm. 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.

Corner Brook Soil Profile

Soil Type

Podzol

Soil pH

6.0-7.0

Drainage

Well Drained

Gardening Difficulty Score

95 Excellent
Frost Timing Risk
0.0/10
Drought Risk
0.0/10
Soil Difficulty
3.0/10
Altitude Challenge
0.0/10
Climate Shift
0.0/10
Rainfall Challenge
0.0/10

Corner Brook is a very forgiving place to garden. Most plants thrive here with minimal effort.

Zone 5b Frost Countdown
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Last Frost: Apr 27 First Frost: Oct 11

Local Gardening Help in Corner Brook

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 Corner Brook's climate and soil.

County Extension Office

Corner Brook 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 Corner Brook

Soil testing Pest identification
Finding local nurseries & garden centers in Corner Brook

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Corner Brook'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 Corner Brook NL" or "garden center Corner Brook" 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 Corner Brook NL" or check your extension office and local parks department. Facebook groups like "Corner Brook Gardeners" or "Newfoundland and Labrador 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
After Corn (harvest ends Aug 12) 64 days until frost
After Kale (harvest ends Aug 5) 71 days until frost
After Cantaloupe (harvest ends Aug 19) 57 days until frost
After Onion (harvest ends Sep 2) 43 days until frost
After Zucchini (harvest ends Aug 12) 64 days until frost
After Peas (harvest ends Aug 5) 71 days until frost

Sunlight & Day Length

Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.

Longest Day

16 hours

Summer solstice daylight

Shortest Day

8 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.

14hr 12hr 2h 6h 10h 13h 17h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight hours (sunrise to sunset) Peak sun hours (direct sunlight after cloud cover) ▪ Gold zone = long day (14+ hr) ▪ Blue zone = short day (<12 hr)

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
MonthDaylight HoursPeak Sun HoursDay 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 13.5 hr 6.9 hr Neutral
May 15.1 hr 9 hr Long day
June 16 hr 9.4 hr Long day
July 15.6 hr 10.4 hr Long day
August 14.2 hr 9 hr Long day
September 12.3 hr 7.1 hr Neutral
October 10.5 hr 5.4 hr Short day
November 8.9 hr 3.6 hr Short day
December 8 hr 3.1 hr Short day

Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.

Soil Temperature & Composting Calendar

Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.

Plant Warm Crops When

Soil reaches 16°C+

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.

16°C 21°C -12° -1° 10° 21° 32° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
10 cm depth 20 cm depth - - - 16°C (corn, beans) - - - 21°C (tomatoes, peppers)
View detailed monthly data
MonthSoil 10cm DeepSoil 20cm DeepCompost ActivityTime to Finish
Jan -4°C -2°C ❄️ Dormant ~36 weeks
Feb -6°C -2°C ❄️ Dormant ~36 weeks
Mar 0°C 0°C ❄️ Dormant ~36 weeks
Apr 7°C 7°C 🐢 Slow ~24 weeks
May 14°C 12°C ♻️ Active ~14 weeks
Jun 21°C 17°C 🔥 Peak ~8 weeks
Jul 26°C 22°C 🔥 Peak ~8 weeks
Aug 26°C 23°C 🔥 Peak ~8 weeks
Sep 22°C 21°C 🔥 Peak ~8 weeks
Oct 13°C 16°C ♻️ Active ~14 weeks
Nov 6°C 9°C 🐢 Slow ~24 weeks
Dec -2°C 2°C ❄️ Dormant ~36 weeks

Highlighted rows = soil 16°C+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.

Pest & Disease Pressure in Corner Brook

Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.

Insect Pest Pressure

5.8 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

1.6 / 10

Low disease risk — dry conditions reduce fungal problems.

Seasonal Risk

Spring Low
Summer High
Fall Low
Winter Low
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids Moderate May, Jun, Jul, Aug
Japanese beetles Moderate Jun, Jul, Aug
Squash bugs Moderate Jun, Jul, Aug
Tomato hornworms Low Jul, Aug
Cabbage loopers Moderate May, Jun, Jul, Aug
Slugs Low Apr, May, Jun
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 Corner Brook

Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.

Spring Cover Crops (3 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat May 3 Aug 2 Rapid growth, attracts pollinators, suppresses weeds
Sorghum-sudan grass May 4 Aug 2 Massive biomass, breaks compaction, suppresses nematodes
White clover Apr 1 Aug 9 ✓ 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 28 Sep 13 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 5 Apr 6 ✓ Yes Fixes nitrogen, good for heavy clay soils
Daikon radish Aug 25 Apr 6 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Aug 1 Apr 6 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Sep 9 Apr 13 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jul 16 Apr 13 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jul 7 Apr 13 Erosion control, weed suppression, good biomass

Wind & Microclimate

Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.

Seasonal Wind Speed

Spring: 22 km/h   Summer: 13 km/h

Fall: 15 km/h   Winter: 18 km/h

Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.

Windbreak Benefit

5.3/10

Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.

Frost Pocket Risk

Moderate

Some terrain variation (23 m range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.

Rainwater Harvesting Potential

How much water you can collect, when to collect it, and what size system you need for your garden.

Annual Collection

59,231 L

Per 93 m² of roof area (at 80% collection efficiency)

Recommended Setup

6 rain barrels (208 L each)

For a typical 46 m² garden. Serious collectors: consider a 6,624 L tank.

Legal Status

Unrestricted

Rainwater harvesting is fully legal in your state with no restrictions.

Best Collection Months

May, 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 31.4 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 15,649 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 Corner Brook

Soil Type

Podzol

Amend with compost each season to maintain fertility and structure.

Watering Needs

Moderate rainfall (31.5 in.) — plan to water 1–2 times per week during the growing season.

Season Tips

167-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.

Free Garden Planner

Plan your entire garden season — organize planting dates, track what you're growing, and know exactly when to start seeds, transplant, and harvest.

Get My Free Planner →

Recommended for Your Garden

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

📏
Digital pH Meter $10-20

Get instant, accurate soil pH readings to fine-tune your amendments.

🍂
Organic Compost $8-30

Boost soil fertility and structure with rich, well-aged organic compost.

🥬 Vegetables to Grow in Corner Brook

106 vegetables that grow well in Zone 5b with planting dates for Corner Brook.

Show all 106 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Acorn Squash Mar 23 May 4 May 11 Aug 3 – Sep 7 80–100
Amaranth Mar 2 May 4 May 11 Aug 10 – Sep 28 90–120
Arugula Mar 23 Apr 13 Apr 27 Jun 1 – Aug 3 30–50
Asparagus May 11 730–1095
Beets Apr 13 Jun 8 – Jul 6 50–70
Belgian Endive Mar 23 Apr 13 Apr 27 Aug 17 – Oct 12 110–150
Bitter Melon Mar 2 May 4 May 11 Jul 13 – Aug 24 60–90
Black Beans May 4 Aug 3 – Sep 21 90–120
Bok Choy Mar 23 Apr 13 Apr 27 Jun 8 – Jul 13 40–60
Broccoli Mar 23 Apr 13 Apr 27 Jun 29 – Aug 10 60–90
Broccoli Rabe Mar 23 Apr 13 Apr 27 Jun 8 – Jul 13 40–60
Brussels Sprouts Mar 23 Apr 13 Apr 27 Jul 27 – Sep 21 90–130
Butternut Squash Mar 23 May 4 May 11 Aug 10 – Sep 14 85–110
Cabbage Mar 23 Apr 13 Apr 27 Jun 29 – Aug 24 60–100
Calabash Mar 2 May 4 May 11 Aug 3 – Sep 28 80–120
Carrots Apr 13 Jun 15 – Jul 20 60–80
Cauliflower Mar 23 Apr 13 Apr 27 Jun 22 – Aug 24 55–100
Celeriac Mar 23 Apr 13 Apr 27 Aug 10 – Sep 14 100–120
Celery Mar 23 Apr 13 Apr 27 Jul 20 – Sep 14 80–120
Celtuce Mar 23 Apr 13 Apr 27 Jun 29 – Aug 10 60–90
Chard Mar 23 Apr 13 Apr 27 Jun 22 – Aug 10 50–60
Chickpeas Mar 23 Apr 13 Apr 27 Jul 20 – Aug 31 80–110
Chicory Mar 23 Apr 13 Apr 27 Jun 29 – Aug 10 60–85
Chinese Cabbage Mar 23 Apr 13 Apr 27 Jun 22 – Jul 20 50–70
Christmas Lima Beans Mar 2 May 4 May 11 Aug 3 – Sep 7 80–100
Collard Greens Mar 23 Apr 13 Apr 27 Jun 22 – Aug 24 55–75
Corn May 4 Jul 6 – Aug 31 60–100
Cowpeas May 4 Jul 6 – Aug 17 60–90
Cress Mar 23 Apr 13 Apr 27 May 11 – Jun 1 14–21
Crookneck Squash Mar 23 May 4 May 11 Jun 29 – Jul 27 45–60
Crosne Apr 13 Sep 14 – Sep 28 150–200
Cucumber Mar 23 May 4 May 11 Jul 6 – Aug 31 50–70
Daikon Apr 13 Jun 8 – Jul 6 50–70
Delicata Squash Mar 23 May 4 May 11 Aug 3 – Sep 7 80–100
Edamame May 4 Jul 20 – Aug 31 75–100
Eggplant Feb 16 May 4 May 11 Jul 20 – Sep 21 65–85
Endive Mar 23 Apr 13 Apr 27 Jun 15 – Jul 20 45–65
Escarole Mar 23 Apr 13 Apr 27 Jun 22 – Jul 20 50–70
Fava Beans Mar 23 Apr 13 Apr 27 Jul 13 – Aug 24 75–100
Fennel Mar 2 May 4 May 11 Jul 13 – Aug 24 60–90
Garlic 90–240
Green Beans May 4 Jun 29 – Aug 24 50–65
Horseradish May 11 Sep 14 – Oct 26 120–180
Hot Peppers Feb 16 May 4 May 11 Jul 20 – Oct 26 70–120
Hubbard Squash Mar 23 May 4 May 11 Aug 24 – Sep 28 100–120
Kabocha Mar 23 May 4 May 11 Aug 10 – Sep 7 85–100
Kai Lan Mar 23 Apr 13 Apr 27 Jun 15 – Jul 13 45–60
Kale Mar 23 Apr 13 Apr 27 Jun 22 – Aug 17 50–70
Kidney Beans May 4 Aug 3 – Sep 7 85–110
Kohlrabi Mar 23 Apr 13 Apr 27 Jun 15 – Jul 20 45–65
Komatsuna Mar 23 Apr 13 Apr 27 Jun 1 – Jul 6 35–50
Leeks Mar 23 Apr 13 Apr 27 Jul 27 – Oct 12 90–150
Lentils Mar 23 Apr 13 Apr 27 Jul 20 – Aug 31 80–110
Lettuce Mar 23 Apr 13 Apr 27 Jun 1 – Aug 10 30–60
Lima Beans May 4 Jul 6 – Aug 17 60–90
Mache Mar 23 Apr 13 Apr 27 Jun 8 – Jul 13 40–60
Melon Mar 23 May 4 May 11 Jul 20 – Sep 7 70–100
Microgreens Mar 23 Apr 13 Apr 27 May 4 – Jun 1 7–21
Mitsuba Mar 23 Apr 13 Apr 20 Jun 15 – Aug 10 50–70
Mizuna Mar 23 Apr 13 Apr 27 Jun 1 – Jun 29 30–45
Mustard Greens Mar 23 Apr 13 Apr 27 Jun 1 – Aug 3 30–50
Napa Cabbage Mar 23 Apr 13 Apr 27 Jun 22 – Jul 27 55–75
New Zealand Spinach Mar 2 May 4 May 11 Jul 6 – Aug 3 55–70
Okra Mar 2 May 4 May 11 Jul 6 – Aug 31 50–65
Onion Mar 23 Apr 13 Apr 27 Jul 27 – Sep 14 90–120
Pac Choi Mar 23 Apr 13 Apr 27 Jun 8 – Jul 6 40–55
Parsnip Apr 13 Jul 27 – Sep 7 100–130
Patty Pan Squash Mar 23 May 4 May 11 Jun 29 – Jul 27 45–60
Peas Mar 23 Apr 13 Apr 27 Jun 22 – Aug 17 55–70
Peppers Feb 16 May 4 May 11 Jul 13 – Sep 21 60–90
Pole Beans Mar 2 May 4 May 11 Jul 6 – Aug 31 55–70
Potatoes Mar 2 May 4 May 11 Jul 20 – Sep 28 70–120
Pumpkin Mar 23 May 4 May 11 Aug 10 – Sep 28 85–120
Purslane Mar 23 Apr 13 Apr 27 Jun 8 – Jul 13 40–60
Radicchio Mar 23 Apr 13 Apr 27 Jun 29 – Aug 3 60–80
Radish Apr 13 May 11 – Jun 1 22–35
Rhubarb May 18 365–730
Romanesco Mar 23 Apr 13 Apr 27 Jul 13 – Aug 24 75–100
Rutabaga Apr 13 Jul 6 – Aug 10 80–100
Salsify Apr 13 Jul 27 – Sep 7 100–130
Savoy Cabbage Mar 23 Apr 13 Apr 27 Jul 6 – Aug 31 70–110
Scallions Mar 23 Apr 13 Apr 27 Jun 22 – Jul 20 50–70
Scarlet Runner Beans Mar 2 May 4 May 11 Jul 13 – Aug 17 60–80
Shallot Mar 23 Apr 13 Apr 27 Jul 27 – Sep 14 90–120
Shiso Mar 9 May 4 May 11 Jul 6 – Aug 31 50–70
Snap Peas Mar 2 May 4 May 11 Jul 6 – Aug 31 55–70
Snow Peas Mar 23 Apr 13 Apr 27 Jun 22 – Aug 17 50–65
Soybeans May 4 Jul 27 – Sep 21 80–120
Spaghetti Squash Mar 23 May 4 May 11 Aug 10 – Sep 7 85–100
Spinach Mar 23 Apr 13 Apr 27 Jun 1 – Aug 3 35–50
Squash (Summer) Mar 23 May 4 May 11 Jun 29 – Aug 31 45–65
Squash (Winter) Mar 23 May 4 May 11 Aug 3 – Sep 28 80–120
Sunchoke May 11 Aug 31 – Oct 26 110–150
Sunflower Mar 2 May 4 May 11 Jul 20 – Sep 7 70–100
Sweet Corn May 4 Jul 6 – Aug 17 60–90
Sweet Potatoes Mar 2 May 4 May 11 Aug 10 – Sep 28 90–120
Tatsoi Mar 23 Apr 13 Apr 27 Jun 1 – Jul 6 35–50
Tomatillo Mar 2 May 4 May 11 Jul 13 – Sep 21 60–85
Tomatoes Mar 2 May 4 May 11 Jul 13 – Sep 21 60–85
Turnip Apr 13 May 25 – Jun 29 40–60
Watercress Mar 23 Apr 13 Apr 27 Jun 8 – Jul 13 40–60
Watermelon Mar 23 May 4 May 11 Jul 20 – Sep 7 70–100
Wax Beans May 4 Jun 29 – Aug 24 50–65
Winter Melon Mar 2 May 4 May 11 Aug 10 – Sep 28 90–120
Yard Long Beans Mar 2 May 4 May 11 Jul 6 – Aug 17 55–80
Zucchini Mar 23 May 4 May 11 Jun 29 – Aug 24 45–60

🍓 Fruits to Grow in Corner Brook

27 fruits that grow well in Zone 5b with planting dates for Corner Brook.

Show all 27 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Alpine Strawberries May 18 Aug 17 – Nov 2 90–180
Aronia May 18 730–1095
Blackberries May 18 365–730
Blueberries May 18 730–1095
Boysenberries May 18 365–730
Cantaloupe May 18 Jul 27 – Aug 31 70–90
Che Fruit May 18 1095–1825
Cranberries May 18 730–1095
Currants May 18 730–1095
Elderberries May 18 730–1095
Goji Berries May 18 730–1095
Gooseberries May 18 730–1095
Grapes May 18 730–1095
Ground Cherry May 18 Jul 27 – Sep 21 65–80
Hardy Kiwi May 18 1095–1825
Haskaps May 18 730–1095
Honeydew May 18 Aug 10 – Sep 21 80–110
Jostaberry May 18 730–1095
Lingonberries May 18 730–1095
Medlar May 18 1095–1825
Mulberries May 18 730–1825
Pawpaw May 18 1095–2555
Persimmon May 18 1095–2555
Quince May 18 1095–1825
Raspberries May 18 365–730
Serviceberries May 18 730–1095
Strawberries May 18 Aug 17 – Nov 2 90–365

🌿 Herbs to Grow in Corner Brook

37 herbs that grow well in Zone 5b with planting dates for Corner Brook.

Show all 37 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Angelica Mar 23 Apr 13 Apr 20 365–730
Anise Mar 23 Apr 13 Apr 20 Jul 20 – Oct 5 90–120
Basil Mar 9 May 4 May 11 Jul 6 – Sep 7 50–75
Bee Balm May 4 Aug 3 – Oct 19 90–120
Borage Mar 23 Apr 13 Apr 20 Jun 15 – Aug 3 50–60
Caraway Mar 23 Apr 13 Apr 20 365–450
Catnip May 4 Jul 6 – Sep 7 60–80
Chamomile Mar 23 Apr 13 Apr 20 Jun 22 – Aug 31 60–90
Chervil Mar 23 Apr 13 Apr 20 Jun 1 – Aug 3 40–60
Chives May 4 Jul 6 – Sep 14 60–90
Cilantro Mar 23 Apr 13 Apr 20 Jun 1 – Aug 3 40–60
Comfrey May 4 Jul 6 – Sep 14 60–90
Cumin Mar 23 Apr 13 Apr 20 Aug 3 – Oct 5 100–120
Dill Mar 23 Apr 13 Apr 20 Jun 1 – Aug 3 40–60
Echinacea May 4 Sep 7 – Oct 19 120–180
Epazote Mar 9 May 4 May 11 Jun 29 – Aug 24 45–60
Fennel (herb) Mar 23 Apr 13 Apr 20 Jun 22 – Aug 31 60–90
Feverfew May 4 Aug 3 – Oct 19 90–120
Garlic Chives May 4 Jul 6 – Sep 14 60–90
Horehound May 4 Jul 20 – Sep 14 75–90
Hyssop May 4 Jul 13 – Sep 14 70–90
Lavender May 4 Aug 3 – Oct 19 90–200
Lemon Balm May 4 Jul 6 – Aug 24 60–70
Lemon Thyme May 4 Jul 13 – Sep 14 70–90
Lovage May 4 Jul 13 – Sep 14 70–90
Mint May 4 Jul 6 – Sep 14 60–90
Oregano May 4 Jul 6 – Sep 14 60–90
Parsley Mar 23 Apr 13 Apr 20 Jun 22 – Aug 24 60–80
Rue May 4 Jul 13 – Sep 14 70–90
Sage May 4 Jul 20 – Sep 14 75–90
Savory May 4 Jun 29 – Aug 24 50–70
Sorrel Mar 23 Apr 13 Apr 20 Jun 1 – Aug 3 40–60
Tarragon May 4 Jul 6 – Sep 14 60–90
Thai Basil Mar 9 May 4 May 11 Jul 6 – Sep 7 50–75
Thyme May 4 Jul 13 – Sep 14 70–90
Valerian May 4 Sep 7 – Oct 19 120–180
Yarrow May 4 Aug 3 – Oct 19 90–120

Monthly Planting Guide for Corner Brook

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in Corner Brook.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner — designed to help Corner Brook gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Level Up Your Garden

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: April 2026.