Fredericton, NB — Planting Guide
Fredericton 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 68 ft, Fredericton receives approximately 31.3 in of rainfall annually. Summer highs average 79°F with winter lows around 11°F. The predominant soil type is Gray-Brown Podzol.
🌡️ Zone
5b (-15°F to -10°F min)
❄️ Last Frost
April 24
🍂 First Frost
October 8
📅 Growing Season
167 days
⛰️ Elevation
68 ft
🌧️ Annual Rainfall
31.3 in
Monthly Watering Calendar for Fredericton
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
For new gardeners: Most vegetables want about 1 inch of water per week. Fredericton gets 31" a year — months that hit that 1"/week need zero supplemental watering; months that fall short, the table tells you how much to add. Saves you from drowning roots and from drought-stressing plants into bolting.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 1.4 in | 8 days | — | None |
| Feb | 1.3 in | 7 days | — | None |
| Mar | 2 in | 9 days | — | None |
| Apr | 2.8 in | 10 days | 1.5 in | Moderate |
| May | 4 in | 9 days | 0.3 in | Low |
| Jun | 3.6 in | 10 days | 0.7 in | Moderate |
| Jul | 3.6 in | 8 days | 0.7 in | Moderate |
| Aug | 3.6 in | 8 days | 0.7 in | Moderate |
| Sep | 2.8 in | 7 days | 1.5 in | Moderate |
| Oct | 2.3 in | 7 days | 2 in | High |
| Nov | 2.1 in | 8 days | — | None |
| Dec | 1.9 in | 7 days | — | None |
Annual total: 31.4 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.
Fredericton Soil Profile
Soil Type
Gray-Brown Podzol
Soil pH
6.0-7.0
Drainage
Well Drained
Gardening Difficulty Score
Fredericton is a very forgiving place to garden. Most plants thrive here with minimal effort.
Local Gardening Help in Fredericton
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 Fredericton's climate and soil.
County Extension Office
Fredericton 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 Fredericton
Finding local nurseries & garden centers in Fredericton
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Fredericton'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 Fredericton NB" or "garden center Fredericton" 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 Fredericton NB" or check your extension office and local parks department. Facebook groups like "Fredericton Gardeners" or "New Brunswick 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 Fredericton
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Quick context: Lettuce and cilantro "bolt" (go to seed) when days lengthen. Knowing your day-length curve helps you time spring plantings to harvest before the bolting trigger hits. Fredericton's daylight ranges shape the planting calendar.
Longest Day
15.5 hours
Summer solstice daylight
Shortest Day
8.5 hours
Winter solstice daylight
Peak Sun Hours
9.7 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 | 8.8 hr | 3.7 hr | Short day |
| February | 10.1 hr | 4.6 hr | Short day |
| March | 11.6 hr | 5.4 hr | Short day |
| April | 13.3 hr | 6.9 hr | Neutral |
| May | 14.7 hr | 8.3 hr | Long day |
| June | 15.5 hr | 9.6 hr | Long day |
| July | 15.2 hr | 9.7 hr | Long day |
| August | 14 hr | 8.9 hr | Long day |
| September | 12.3 hr | 7.4 hr | Neutral |
| October | 10.7 hr | 5.4 hr | Short day |
| November | 9.2 hr | 3.6 hr | Short day |
| December | 8.5 hr | 3.3 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Fredericton
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
For new gardeners: Watching soil temperature (not air) is the single biggest upgrade most new gardeners can make. Fredericton'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 | 32°F | ❄️ Dormant | ~36 weeks |
| Feb | 22°F | 29°F | ❄️ Dormant | ~36 weeks |
| Mar | 30°F | 34°F | ❄️ Dormant | ~36 weeks |
| Apr | 44°F | 44°F | 🐢 Slow | ~24 weeks |
| May | 59°F | 53°F | ♻️ Active | ~14 weeks |
| Jun | 68°F | 64°F | 🔥 Peak | ~8 weeks |
| Jul | 77°F | 70°F | 🔥 Peak | ~8 weeks |
| Aug | 79°F | 72°F | 🔥 Peak | ~8 weeks |
| Sep | 71°F | 69°F | 🔥 Peak | ~8 weeks |
| Oct | 56°F | 59°F | ♻️ Active | ~14 weeks |
| Nov | 42°F | 49°F | 🐢 Slow | ~24 weeks |
| Dec | 31°F | 36°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 Fredericton
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
For new gardeners: Two gardeners can grow identical seeds and get wildly different results based on pest pressure alone. Fredericton's climate sets a floor on what's possible without intervention.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 6 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 | Moderate | Jul, Aug |
| Cabbage loopers | Low | May, Jun, Jul, Aug |
| Slugs | Low | Apr, May, Jun |
Organic pest management tips
- Use row covers on susceptible crops during peak pest months
- Apply neem oil preventatively every 7-14 days during active pest season
- Interplant with strong-scented herbs (basil, marigold) to confuse pests
- Hand-pick larger pests (beetles, caterpillars) in early morning when they're sluggish
- Practice crop rotation — never plant the same family in the same spot within 3 years
Cover Crops for Fredericton
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Why it matters: Cover crops are the experienced gardener's secret weapon. Fredericton's climate determines which species thrive: clover and vetch in mild winters, cereal rye and Austrian peas in cold ones.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 30 | Aug 6 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | May 2 | Aug 6 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 28 | Jul 30 | ✓ 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 14 | Sep 17 | — | 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 | Jul 29 | Apr 10 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Aug 29 | Apr 3 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 14 | Apr 3 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 1 | Apr 3 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 8 | Apr 3 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jun 30 | Apr 10 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Fredericton
The practical takeaway: 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. Fredericton sees 9.7 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: 10 mph
Fall: 9 mph Winter: 12 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
6.8/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Low
Relatively flat terrain (190 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Fredericton
How much water you can collect, when to collect it, and what size system you need for your garden.
Quick context: Rainwater is unchlorinated, unfluoridated, and at ambient temperature — plants actually prefer it. Fredericton's 31" annual rainfall means even a small 50-gallon barrel catches enough for a few weeks of garden watering between storms.
Annual Collection
15,649 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
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 Fredericton
Soil Type
Gray-Brown Podzol
Amend with compost each season to maintain fertility and structure.
Watering Needs
Moderate rainfall (31.3 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.
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 Fredericton
105 vegetables that grow well in Zone 5b with planting dates for Fredericton.
Show all 105 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 20 | May 1 | May 8 | — | Jul 31 – Sep 4 | 80–100 |
| Amaranth | Feb 27 | May 1 | May 8 | — | Aug 7 – Sep 25 | 90–120 |
| Arugula | Mar 20 | Apr 10 | Apr 24 | Jul 30 | May 29 – Jul 31 | 30–50 |
| Asparagus | — | — | May 8 | — | — | 730–1095 |
| Beets | — | Apr 10 | — | Jul 30 | Jun 5 – Jul 3 | 50–70 |
| Belgian Endive | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Aug 14 – Oct 9 | 110–150 |
| Bitter Melon | Feb 27 | May 1 | May 8 | — | Jul 10 – Aug 21 | 60–90 |
| Black Beans | — | May 1 | — | — | Jul 31 – Sep 18 | 90–120 |
| Bok Choy | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 5 – Jul 10 | 40–60 |
| Broccoli | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 26 – Aug 7 | 60–90 |
| Broccoli Rabe | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 5 – Jul 10 | 40–60 |
| Brussels Sprouts | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 24 – Sep 18 | 90–130 |
| Butternut Squash | Mar 20 | May 1 | May 8 | — | Aug 7 – Sep 11 | 85–110 |
| Cabbage | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 26 – Aug 21 | 60–100 |
| Calabash | Feb 27 | May 1 | May 8 | — | Jul 31 – Sep 25 | 80–120 |
| Carrots | — | Apr 10 | — | Jul 30 | Jun 12 – Jul 17 | 60–80 |
| Cauliflower | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Aug 21 | 55–100 |
| Celeriac | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Aug 7 – Sep 11 | 100–120 |
| Celery | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 17 – Sep 11 | 80–120 |
| Celtuce | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 26 – Aug 7 | 60–90 |
| Chard | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Aug 7 | 50–60 |
| Chickpeas | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 17 – Aug 28 | 80–110 |
| Chicory | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 26 – Aug 7 | 60–85 |
| Chinese Cabbage | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Jul 17 | 50–70 |
| Christmas Lima Beans | Feb 27 | May 1 | May 8 | — | Jul 31 – Sep 4 | 80–100 |
| Collard Greens | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Aug 21 | 55–75 |
| Corn | — | May 1 | — | — | Jul 3 – Aug 28 | 60–100 |
| Cowpeas | — | May 1 | — | — | Jul 3 – Aug 14 | 60–90 |
| Cress | Mar 20 | Apr 10 | Apr 24 | Jul 30 | May 8 – May 29 | 14–21 |
| Crookneck Squash | Mar 20 | May 1 | May 8 | — | Jun 26 – Jul 24 | 45–60 |
| Crosne | — | Apr 10 | — | Jul 30 | Sep 11 – Sep 25 | 150–200 |
| Cucumber | Mar 20 | May 1 | May 8 | — | Jul 3 – Aug 28 | 50–70 |
| Daikon | — | Apr 10 | — | Jul 30 | Jun 5 – Jul 3 | 50–70 |
| Delicata Squash | Mar 20 | May 1 | May 8 | — | Jul 31 – Sep 4 | 80–100 |
| Edamame | — | May 1 | — | — | Jul 17 – Aug 28 | 75–100 |
| Eggplant | Feb 13 | May 1 | May 8 | — | Jul 17 – Sep 18 | 65–85 |
| Endive | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 12 – Jul 17 | 45–65 |
| Escarole | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Jul 17 | 50–70 |
| Fava Beans | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 10 – Aug 21 | 75–100 |
| Fennel | Feb 27 | May 1 | May 8 | — | Jul 10 – Aug 21 | 60–90 |
| Garlic | — | — | — | Aug 27 | Nov 26 – Feb 11 | 90–240 |
| Green Beans | — | May 1 | — | — | Jun 26 – Aug 21 | 50–65 |
| Horseradish | — | — | May 8 | — | Sep 11 – Oct 23 | 120–180 |
| Hot Peppers | Feb 13 | May 1 | May 8 | — | Jul 17 – Oct 23 | 70–120 |
| Hubbard Squash | Mar 20 | May 1 | May 8 | — | Aug 21 – Sep 25 | 100–120 |
| Kabocha | Mar 20 | May 1 | May 8 | — | Aug 7 – Sep 4 | 85–100 |
| Kai Lan | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 12 – Jul 10 | 45–60 |
| Kale | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Aug 14 | 50–70 |
| Kidney Beans | — | May 1 | — | — | Jul 31 – Sep 4 | 85–110 |
| Kohlrabi | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 12 – Jul 17 | 45–65 |
| Komatsuna | Mar 20 | Apr 10 | Apr 24 | Jul 30 | May 29 – Jul 3 | 35–50 |
| Leeks | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 24 – Oct 9 | 90–150 |
| Lentils | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 17 – Aug 28 | 80–110 |
| Lettuce | Mar 20 | Apr 10 | Apr 24 | Jul 30 | May 29 – Aug 7 | 30–60 |
| Lima Beans | — | May 1 | — | — | Jul 3 – Aug 14 | 60–90 |
| Mache | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 5 – Jul 10 | 40–60 |
| Melon | Mar 20 | May 1 | May 8 | — | Jul 17 – Sep 4 | 70–100 |
| Microgreens | Mar 20 | Apr 10 | Apr 24 | Jul 30 | May 1 – May 29 | 7–21 |
| Mitsuba | Mar 20 | Apr 10 | Apr 17 | Jul 30 | Jun 12 – Aug 7 | 50–70 |
| Mizuna | Mar 20 | Apr 10 | Apr 24 | Jul 30 | May 29 – Jun 26 | 30–45 |
| Mustard Greens | Mar 20 | Apr 10 | Apr 24 | Jul 30 | May 29 – Jul 31 | 30–50 |
| Napa Cabbage | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Jul 24 | 55–75 |
| New Zealand Spinach | Feb 27 | May 1 | May 8 | — | Jul 3 – Jul 31 | 55–70 |
| Okra | Feb 27 | May 1 | May 8 | — | Jul 3 – Aug 28 | 50–65 |
| Onion | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 24 – Sep 11 | 90–120 |
| Pac Choi | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 5 – Jul 3 | 40–55 |
| Parsnip | — | Apr 10 | — | Jul 30 | Jul 24 – Sep 4 | 100–130 |
| Patty Pan Squash | Mar 20 | May 1 | May 8 | — | Jun 26 – Jul 24 | 45–60 |
| Peas | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Aug 14 | 55–70 |
| Peppers | Feb 13 | May 1 | May 8 | — | Jul 10 – Sep 18 | 60–90 |
| Pole Beans | Feb 27 | May 1 | May 8 | — | Jul 3 – Aug 28 | 55–70 |
| Potatoes | Feb 27 | May 1 | May 8 | — | Jul 17 – Sep 25 | 70–120 |
| Pumpkin | Mar 20 | May 1 | May 8 | — | Aug 7 – Sep 25 | 85–120 |
| Purslane | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 5 – Jul 10 | 40–60 |
| Radicchio | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 26 – Jul 31 | 60–80 |
| Radish | — | Apr 10 | — | Jul 30 | May 8 – May 29 | 22–35 |
| Rhubarb | — | — | May 15 | — | — | 365–730 |
| Romanesco | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 10 – Aug 21 | 75–100 |
| Rutabaga | — | Apr 10 | — | Jul 30 | Jul 3 – Aug 7 | 80–100 |
| Salsify | — | Apr 10 | — | Jul 30 | Jul 24 – Sep 4 | 100–130 |
| Savoy Cabbage | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 3 – Aug 28 | 70–110 |
| Scallions | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Jul 17 | 50–70 |
| Scarlet Runner Beans | Feb 27 | May 1 | May 8 | — | Jul 10 – Aug 14 | 60–80 |
| Shallot | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jul 24 – Sep 11 | 90–120 |
| Shiso | Mar 6 | May 1 | May 8 | — | Jul 3 – Aug 28 | 50–70 |
| Snap Peas | Feb 27 | May 1 | May 8 | — | Jul 3 – Aug 28 | 55–70 |
| Snow Peas | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 19 – Aug 14 | 50–65 |
| Soybeans | — | May 1 | — | — | Jul 24 – Sep 18 | 80–120 |
| Spaghetti Squash | Mar 20 | May 1 | May 8 | — | Aug 7 – Sep 4 | 85–100 |
| Spinach | Mar 20 | Apr 10 | Apr 24 | Jul 30 | May 29 – Jul 31 | 35–50 |
| Squash (Summer) | Mar 20 | May 1 | May 8 | — | Jun 26 – Aug 28 | 45–65 |
| Squash (Winter) | Mar 20 | May 1 | May 8 | — | Jul 31 – Sep 25 | 80–120 |
| Sunchoke | — | — | May 8 | — | Aug 28 – Oct 23 | 110–150 |
| Sweet Corn | — | May 1 | — | — | Jul 3 – Aug 14 | 60–90 |
| Sweet Potatoes | Feb 27 | May 1 | May 8 | — | Aug 7 – Sep 25 | 90–120 |
| Tatsoi | Mar 20 | Apr 10 | Apr 24 | Jul 30 | May 29 – Jul 3 | 35–50 |
| Tomatillo | Feb 27 | May 1 | May 8 | — | Jul 10 – Sep 18 | 60–85 |
| Tomatoes | Feb 27 | May 1 | May 8 | — | Jul 10 – Sep 18 | 60–85 |
| Turnip | — | Apr 10 | — | Jul 30 | May 22 – Jun 26 | 40–60 |
| Watercress | Mar 20 | Apr 10 | Apr 24 | Jul 30 | Jun 5 – Jul 10 | 40–60 |
| Watermelon | Mar 20 | May 1 | May 8 | — | Jul 17 – Sep 4 | 70–100 |
| Wax Beans | — | May 1 | — | — | Jun 26 – Aug 21 | 50–65 |
| Winter Melon | Feb 27 | May 1 | May 8 | — | Aug 7 – Sep 25 | 90–120 |
| Yard Long Beans | Feb 27 | May 1 | May 8 | — | Jul 3 – Aug 14 | 55–80 |
| Zucchini | Mar 20 | May 1 | May 8 | — | Jun 26 – Aug 21 | 45–60 |
🍓 Fruits to Grow in Fredericton
27 fruits that grow well in Zone 5b with planting dates for Fredericton.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 15 | — | Aug 14 – Oct 30 | 90–180 |
| Aronia | — | — | May 15 | — | — | 730–1095 |
| Blackberries | — | — | May 15 | — | — | 365–730 |
| Blueberries | — | — | May 15 | — | — | 730–1095 |
| Boysenberries | — | — | May 15 | — | — | 365–730 |
| Cantaloupe | — | — | May 15 | — | Jul 24 – Aug 28 | 70–90 |
| Che Fruit | — | — | May 15 | — | — | 1095–1825 |
| Cranberries | — | — | May 15 | — | — | 730–1095 |
| Currants | — | — | May 15 | — | — | 730–1095 |
| Elderberries | — | — | May 15 | — | — | 730–1095 |
| Goji Berries | — | — | May 15 | — | — | 730–1095 |
| Gooseberries | — | — | May 15 | — | — | 730–1095 |
| Grapes | — | — | May 15 | — | — | 730–1095 |
| Ground Cherry | — | — | May 15 | — | Jul 24 – Sep 18 | 65–80 |
| Hardy Kiwi | — | — | May 15 | — | — | 1095–1825 |
| Haskaps | — | — | May 15 | — | — | 730–1095 |
| Honeydew | — | — | May 15 | — | Aug 7 – Sep 18 | 80–110 |
| Jostaberry | — | — | May 15 | — | — | 730–1095 |
| Lingonberries | — | — | May 15 | — | — | 730–1095 |
| Medlar | — | — | May 15 | — | — | 1095–1825 |
| Mulberries | — | — | May 15 | — | — | 730–1825 |
| Pawpaw | — | — | May 15 | — | — | 1095–2555 |
| Persimmon | — | — | May 15 | — | — | 1095–2555 |
| Quince | — | — | May 15 | — | — | 1095–1825 |
| Raspberries | — | — | May 15 | — | — | 365–730 |
| Serviceberries | — | — | May 15 | — | — | 730–1095 |
| Strawberries | — | — | May 15 | — | Aug 14 – Oct 30 | 90–365 |
🌿 Herbs to Grow in Fredericton
34 herbs that grow well in Zone 5b with planting dates for Fredericton.
Show all 34 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 20 | Apr 10 | Apr 17 | Jul 30 | — | 365–730 |
| Anise | Mar 20 | Apr 10 | Apr 17 | Jul 30 | Jul 17 – Oct 2 | 90–120 |
| Basil | Mar 6 | May 1 | May 8 | — | Jul 3 – Sep 4 | 50–75 |
| Bee Balm | — | — | May 1 | — | Jul 31 – Oct 16 | 90–120 |
| Borage | Mar 20 | Apr 10 | Apr 17 | Jul 30 | Jun 12 – Jul 31 | 50–60 |
| Caraway | Mar 20 | Apr 10 | Apr 17 | Jul 30 | — | 365–450 |
| Catnip | — | — | May 1 | — | Jul 3 – Sep 4 | 60–80 |
| Chamomile | Mar 20 | Apr 10 | Apr 17 | Jul 30 | Jun 19 – Aug 28 | 60–90 |
| Chervil | Mar 20 | Apr 10 | Apr 17 | Jul 30 | May 29 – Jul 31 | 40–60 |
| Chives | — | — | May 1 | — | Jul 3 – Sep 11 | 60–90 |
| Cilantro | Mar 20 | Apr 10 | Apr 17 | Jul 30 | May 29 – Jul 31 | 40–60 |
| Comfrey | — | — | May 1 | — | Jul 3 – Sep 11 | 60–90 |
| Cumin | Mar 20 | Apr 10 | Apr 17 | Jul 30 | Jul 31 – Oct 2 | 100–120 |
| Dill | Mar 20 | Apr 10 | Apr 17 | Jul 30 | May 29 – Jul 31 | 40–60 |
| Epazote | Mar 6 | May 1 | May 8 | — | Jun 26 – Aug 21 | 45–60 |
| Fennel (herb) | Mar 20 | Apr 10 | Apr 17 | Jul 30 | Jun 19 – Aug 28 | 60–90 |
| Feverfew | — | — | May 1 | — | Jul 31 – Oct 16 | 90–120 |
| Garlic Chives | — | — | May 1 | — | Jul 3 – Sep 11 | 60–90 |
| Horehound | — | — | May 1 | — | Jul 17 – Sep 11 | 75–90 |
| Hyssop | — | — | May 1 | — | Jul 10 – Sep 11 | 70–90 |
| Lemon Balm | — | — | May 1 | — | Jul 3 – Aug 21 | 60–70 |
| Lemon Thyme | — | — | May 1 | — | Jul 10 – Sep 11 | 70–90 |
| Lovage | — | — | May 1 | — | Jul 10 – Sep 11 | 70–90 |
| Mint | — | — | May 1 | — | Jul 3 – Sep 11 | 60–90 |
| Oregano | — | — | May 1 | — | Jul 3 – Sep 11 | 60–90 |
| Parsley | Mar 20 | Apr 10 | Apr 17 | Jul 30 | Jun 19 – Aug 21 | 60–80 |
| Rue | — | — | May 1 | — | Jul 10 – Sep 11 | 70–90 |
| Sage | — | — | May 1 | — | Jul 17 – Sep 11 | 75–90 |
| Savory | — | — | May 1 | — | Jun 26 – Aug 21 | 50–70 |
| Sorrel | Mar 20 | Apr 10 | Apr 17 | Jul 30 | May 29 – Jul 31 | 40–60 |
| Tarragon | — | — | May 1 | — | Jul 3 – Sep 11 | 60–90 |
| Thai Basil | Mar 6 | May 1 | May 8 | — | Jul 3 – Sep 4 | 50–75 |
| Thyme | — | — | May 1 | — | Jul 10 – Sep 11 | 70–90 |
| Valerian | — | — | May 1 | — | Sep 4 – Oct 16 | 120–180 |
🌸 Flowers to Grow in Fredericton
51 flowers that grow well in Zone 5b with planting dates for Fredericton.
Show all 51 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 6 | May 1 | May 1 | — | Jun 26 – Sep 25 | 60–75 |
| Alliums | — | — | — | Aug 27 | Oct 1 – Oct 22 | 28–42 |
| Anemones | Mar 27 | — | Apr 24 | — | May 29 – Jun 26 | 90–120 |
| Astilbe | Feb 20 | — | May 8 | — | Jul 24 – Oct 2 | 70–100 |
| Bachelor's Button | Mar 13 | Apr 3 | Apr 24 | — | Jun 26 – Sep 11 | 60–90 |
| Begonias | Feb 13 | — | May 1 | — | Jul 10 – Oct 2 | 70–90 |
| Black-eyed Susan | Feb 20 | Apr 24 | May 8 | — | Jul 24 – Oct 30 | 60–80 |
| Bleeding Hearts | Feb 20 | — | May 8 | — | Jul 3 – Aug 14 | 60–90 |
| Calendula | Mar 13 | Apr 3 | Apr 24 | — | Jun 12 – Sep 11 | 50–70 |
| Celosia | Mar 20 | May 1 | May 1 | — | Jul 3 – Oct 9 | 60–90 |
| Columbine | Feb 20 | May 8 | May 8 | — | Jul 3 – Aug 14 | 70–100 |
| Coreopsis | Feb 20 | May 1 | May 8 | — | Jul 17 – Oct 30 | 60–80 |
| Cosmos | Mar 27 | Apr 24 | Apr 24 | — | Jul 3 – Oct 2 | 60–90 |
| Crocus | — | — | — | Aug 27 | Jul 9 – Jul 30 | 10–20 |
| Daffodils | — | — | — | Aug 27 | Jul 16 – Aug 6 | 20–40 |
| Dahlias | Mar 27 | May 1 | May 1 | — | Jul 24 – Oct 23 | 70–120 |
| Daylily | Feb 20 | — | May 8 | — | Jul 31 – Oct 30 | 60–90 |
| Dianthus | Feb 20 | Mar 27 | Apr 10 | — | May 29 – Aug 21 | 60–80 |
| Echinacea (Purple Coneflower) | Feb 20 | May 8 | May 8 | — | Jul 31 – Oct 30 | 70–90 |
| Foxglove | Feb 20 | May 8 | May 8 | — | Jul 3 – Aug 14 | 80–120 |
| Gaillardia (Blanket Flower) | Feb 27 | May 1 | May 1 | — | Jul 10 – Oct 30 | 70–100 |
| Geraniums | Feb 13 | — | May 1 | — | Jul 10 – Oct 2 | 70–100 |
| Gladiolus | — | May 1 | May 1 | — | Jul 24 – Oct 23 | 70–100 |
| Hostas | Feb 13 | — | May 8 | — | Jul 31 – Oct 30 | 60–90 |
| Hyacinths | — | — | — | Aug 27 | Aug 6 – Sep 3 | 14–28 |
| Hydrangeas | Feb 13 | — | May 8 | — | Jul 24 – Oct 16 | 90–150 |
| Impatiens | Feb 27 | — | May 1 | — | Jul 10 – Oct 9 | 60–75 |
| Irises | — | Division | May 8 | — | Jul 3 – Aug 7 | 60–100 |
| Larkspur | — | Mar 27 | — | — | Jun 5 – Jul 31 | 60–90 |
| Lavender | Feb 13 | — | May 15 | — | Jul 24 – Sep 11 | 90–120 |
| Lilies | — | Division | May 8 | — | Jul 17 – Oct 16 | 70–120 |
| Lobelia | Feb 13 | — | Apr 17 | — | Jun 12 – Aug 28 | 70–80 |
| Lupine | Feb 20 | May 8 | May 8 | — | Jul 3 – Aug 14 | 75–100 |
| Marigolds | Mar 13 | May 1 | May 1 | — | Jun 26 – Sep 25 | 50–70 |
| Nasturtium | Mar 27 | May 1 | May 1 | — | Jun 26 – Oct 9 | 55–65 |
| Pansy | Feb 13 | — | Apr 24 | — | Jun 19 – Aug 21 | 70–90 |
| Peonies | — | Division | May 8 | — | Jul 17 – Aug 28 | 90–120 |
| Petunia | Feb 27 | — | May 1 | — | Jul 10 – Oct 9 | 70–90 |
| Phlox | Feb 20 | May 8 | May 8 | — | Jul 24 – Oct 16 | 80–110 |
| Portulaca | Mar 20 | May 1 | May 1 | — | Jun 19 – Sep 25 | 50–70 |
| Roses | Feb 13 | — | May 8 | — | Jul 24 – Oct 30 | 90–180 |
| Salvia | Feb 20 | — | May 1 | — | Jul 10 – Oct 9 | 70–90 |
| Sedum (Stonecrop) | Feb 20 | — | May 8 | — | Sep 4 – Nov 13 | 60–90 |
| Snapdragon | Feb 13 | Apr 10 | Apr 24 | — | Jul 3 – Sep 11 | 70–100 |
| Sunflower | Apr 3 | May 1 | May 1 | — | Jul 24 – Oct 9 | 70–100 |
| Sweet Alyssum | Mar 6 | Apr 10 | Apr 24 | — | Jun 5 – Aug 14 | 45–60 |
| Sweet Pea | Mar 13 | Mar 20 | Apr 24 | — | Jul 10 – Sep 11 | 65–85 |
| Tulips | — | — | — | Aug 27 | Jul 30 – Aug 20 | 15–30 |
| Vinca (Annual) | Feb 6 | — | May 1 | — | Jul 10 – Oct 2 | 70–90 |
| Yarrow | Feb 20 | Apr 24 | May 8 | — | Jul 17 – Oct 30 | 60–90 |
| Zinnia | Mar 27 | May 1 | May 1 | — | Jul 10 – Oct 9 | 60–70 |
Monthly Planting Guide for Fredericton
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Fredericton.
Frequently Asked Questions
What planting zone is Fredericton, NB?
Fredericton is in USDA Hardiness Zone 5b. 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 Fredericton, NB?
Based on 30 years of NOAA weather station data, the median last spring frost in Fredericton falls around April 24. Plan transplants and direct-sow dates relative to this date.
When is the first fall frost in Fredericton, NB?
The median first fall frost in Fredericton arrives around October 8. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
Is Fredericton a good location for home gardening?
Fredericton 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 Fredericton Garden Planner — Free
A 22-page printable planner built for Fredericton (Zone 5b). 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