Edmonton, AB — Planting Guide
Edmonton is in USDA Zone 4b. The average last spring frost is May 13 and the first fall frost is October 7, giving you a growing season of approximately 147 days.
At an elevation of 2,191 ft, Edmonton receives approximately 17.4 in of rainfall annually. Summer highs average 70°F with winter lows around 6°F. The predominant soil type is Dark Brown Chernozem.
🌡️ Zone
4b (-25°F to -20°F min)
❄️ Last Frost
May 13
🍂 First Frost
October 7
📅 Growing Season
147 days
⛰️ Elevation
2,191 ft
🌧️ Annual Rainfall
17.4 in
Monthly Watering Calendar
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 0.6 in | 7 days | — | None |
| Feb | 0.8 in | 7 days | — | None |
| Mar | 1.2 in | 8 days | — | None |
| Apr | 1.6 in | 8 days | 2.7 in | High |
| May | 1.9 in | 11 days | 2.4 in | High |
| Jun | 2.1 in | 8 days | 2.2 in | High |
| Jul | 2 in | 9 days | 2.3 in | High |
| Aug | 2.1 in | 7 days | 2.2 in | High |
| Sep | 1.3 in | 7 days | 3 in | High |
| Oct | 1.3 in | 6 days | 3 in | High |
| Nov | 1.2 in | 8 days | — | None |
| Dec | 1.1 in | 8 days | — | None |
Annual total: 17.2 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.
Edmonton Soil Profile
Soil Type
Dark Brown Chernozem
Soil pH
6.0-7.0
Drainage
Well Drained
Gardening Difficulty Score
Edmonton is a very forgiving place to garden. Most plants thrive here with minimal effort.
Local Gardening Help in Edmonton
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 Edmonton's climate and soil.
County Extension Office
Edmonton 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 Edmonton
Finding local nurseries & garden centers in Edmonton
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Edmonton'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 Edmonton AB" or "garden center Edmonton" 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 Edmonton AB" or check your extension office and local parks department. Facebook groups like "Edmonton Gardeners" or "Alberta 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
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
16.8 hours
Summer solstice daylight
Shortest Day
7.2 hours
Winter solstice daylight
Peak Sun Hours
10.5 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 | 7.8 hr | 3 hr | Short day |
| February | 9.5 hr | 4.1 hr | Short day |
| March | 11.5 hr | 5.6 hr | Short day |
| April | 13.7 hr | 7.3 hr | Neutral |
| May | 15.7 hr | 9.1 hr | Long day |
| June | 16.8 hr | 10.3 hr | Long day |
| July | 16.3 hr | 10.5 hr | Long day |
| August | 14.6 hr | 8.7 hr | Long day |
| September | 12.4 hr | 7.1 hr | Neutral |
| October | 10.2 hr | 5.4 hr | Short day |
| November | 8.3 hr | 3.3 hr | Short day |
| December | 7.2 hr | 2.6 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 60°F+
Soil warm enough from Jul through Aug.
Best Month to Compost
Jul
Microbial activity peaks when soil is warm.
Active Composting
4 months
Short season — insulate pile or use indoor vermicomposting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 7°F | 17°F | ❄️ Dormant | ~36 weeks |
| Feb | 12°F | 18°F | ❄️ Dormant | ~36 weeks |
| Mar | 21°F | 23°F | ❄️ Dormant | ~36 weeks |
| Apr | 35°F | 33°F | ❄️ Dormant | ~36 weeks |
| May | 48°F | 46°F | 🐢 Slow | ~24 weeks |
| Jun | 59°F | 53°F | ♻️ Active | ~14 weeks |
| Jul | 68°F | 61°F | 🔥 Peak | ~8 weeks |
| Aug | 70°F | 62°F | 🔥 Peak | ~8 weeks |
| Sep | 58°F | 59°F | ♻️ Active | ~14 weeks |
| Oct | 47°F | 48°F | 🐢 Slow | ~24 weeks |
| Nov | 32°F | 38°F | ❄️ Dormant | ~36 weeks |
| Dec | 18°F | 26°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 Edmonton
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
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 |
| Cabbage worms | Moderate | Jun, Jul, Aug |
| Colorado potato beetle | Low | Jun, Jul |
| Flea beetles | Low | May, Jun, Jul |
| Slugs | Low | May, Jun, Jul, Aug, Sep |
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 Edmonton
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 26 | Jul 29 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | Apr 12 | Aug 12 | ✓ 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 | Jun 12 | Sep 9 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (5 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Daikon radish | Aug 11 | Apr 22 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 13 | Apr 29 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 8 | Apr 22 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 12 | Apr 29 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 3 | Apr 22 | — | 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: 11 mph Summer: 8 mph
Fall: 10 mph Winter: 13 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
5/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Low
Relatively flat terrain (156 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
8,572 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
8 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 2,250 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
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 17.2 inches of rain per year
- A 1,000 sq ft roof can collect roughly 8,572 gallons annually
- Rainwater harvesting is fully legal in your state
- In your dry climate, every drop counts — consider a larger cistern system
- Position collection tanks in shade to reduce evaporation and algae growth
Soil & Growing Conditions in Edmonton
Soil Type
Dark Brown Chernozem
Amend with compost each season to maintain fertility and structure.
Watering Needs
With 17.4 inches annually, regular irrigation is essential. Drip systems and heavy mulching conserve water.
Season Tips
147-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.
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 Edmonton
96 vegetables that grow well in Zone 4b with planting dates for Edmonton.
Show all 96 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Apr 1 | May 27 | Jun 3 | Aug 26 – Sep 30 | 80–100 |
| Amaranth | Mar 11 | May 27 | Jun 3 | Sep 2 – Oct 21 | 90–120 |
| Arugula | Apr 1 | May 6 | May 13 | Jun 17 – Aug 19 | 30–50 |
| Asparagus | — | — | May 27 | — | 730–1095 |
| Beets | — | May 6 | — | Jul 1 – Jul 29 | 50–70 |
| Belgian Endive | Apr 1 | May 6 | May 13 | Sep 2 – Oct 7 | 110–150 |
| Black Beans | — | May 27 | — | Aug 26 – Oct 14 | 90–120 |
| Bok Choy | Apr 1 | May 6 | May 13 | Jun 24 – Jul 29 | 40–60 |
| Broccoli | Apr 1 | May 6 | May 13 | Jul 15 – Aug 26 | 60–90 |
| Broccoli Rabe | Apr 1 | May 6 | May 13 | Jun 24 – Jul 29 | 40–60 |
| Brussels Sprouts | Apr 1 | May 6 | May 13 | Aug 12 – Oct 7 | 90–130 |
| Butternut Squash | Apr 1 | May 27 | Jun 3 | Sep 2 – Oct 7 | 85–110 |
| Cabbage | Apr 1 | May 6 | May 13 | Jul 15 – Sep 9 | 60–100 |
| Carrots | — | May 6 | — | Jul 8 – Aug 12 | 60–80 |
| Cauliflower | Apr 1 | May 6 | May 13 | Jul 8 – Sep 9 | 55–100 |
| Celeriac | Apr 1 | May 6 | May 13 | Aug 26 – Sep 30 | 100–120 |
| Celery | Apr 1 | May 6 | May 13 | Aug 5 – Sep 30 | 80–120 |
| Celtuce | Apr 1 | May 6 | May 13 | Jul 15 – Aug 26 | 60–90 |
| Chard | Apr 1 | May 6 | May 13 | Jul 8 – Aug 26 | 50–60 |
| Chickpeas | Apr 1 | May 6 | May 13 | Aug 5 – Sep 16 | 80–110 |
| Chicory | Apr 1 | May 6 | May 13 | Jul 15 – Aug 26 | 60–85 |
| Chinese Cabbage | Apr 1 | May 6 | May 13 | Jul 8 – Aug 5 | 50–70 |
| Christmas Lima Beans | Mar 11 | May 27 | Jun 3 | Aug 26 – Sep 30 | 80–100 |
| Collard Greens | Apr 1 | May 6 | May 13 | Jul 8 – Sep 9 | 55–75 |
| Corn | — | May 27 | — | Jul 29 – Sep 23 | 60–100 |
| Cress | Apr 1 | May 6 | May 13 | May 27 – Jun 17 | 14–21 |
| Crookneck Squash | Apr 1 | May 27 | Jun 3 | Jul 22 – Aug 19 | 45–60 |
| Crosne | — | May 6 | — | Oct 7 – Sep 30 | 150–200 |
| Cucumber | Apr 1 | May 27 | Jun 3 | Jul 29 – Sep 23 | 50–70 |
| Daikon | — | May 6 | — | Jul 1 – Jul 29 | 50–70 |
| Delicata Squash | Apr 1 | May 27 | Jun 3 | Aug 26 – Sep 30 | 80–100 |
| Edamame | — | May 27 | — | Aug 12 – Sep 23 | 75–100 |
| Endive | Apr 1 | May 6 | May 13 | Jul 1 – Aug 5 | 45–65 |
| Escarole | Apr 1 | May 6 | May 13 | Jul 8 – Aug 5 | 50–70 |
| Fava Beans | Apr 1 | May 6 | May 13 | Jul 29 – Sep 9 | 75–100 |
| Fennel | Mar 11 | May 27 | Jun 3 | Aug 5 – Sep 16 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | May 27 | — | Jul 22 – Sep 16 | 50–65 |
| Horseradish | — | — | May 27 | Sep 30 – Oct 21 | 120–180 |
| Hubbard Squash | Apr 1 | May 27 | Jun 3 | Sep 16 – Oct 21 | 100–120 |
| Kabocha | Apr 1 | May 27 | Jun 3 | Sep 2 – Sep 30 | 85–100 |
| Kai Lan | Apr 1 | May 6 | May 13 | Jul 1 – Jul 29 | 45–60 |
| Kale | Apr 1 | May 6 | May 13 | Jul 8 – Sep 2 | 50–70 |
| Kidney Beans | — | May 27 | — | Aug 26 – Sep 30 | 85–110 |
| Kohlrabi | Apr 1 | May 6 | May 13 | Jul 1 – Aug 5 | 45–65 |
| Komatsuna | Apr 1 | May 6 | May 13 | Jun 17 – Jul 22 | 35–50 |
| Leeks | Apr 1 | May 6 | May 13 | Aug 12 – Oct 7 | 90–150 |
| Lentils | Apr 1 | May 6 | May 13 | Aug 5 – Sep 16 | 80–110 |
| Lettuce | Apr 1 | May 6 | May 13 | Jun 17 – Aug 26 | 30–60 |
| Lima Beans | — | May 27 | — | Jul 29 – Sep 9 | 60–90 |
| Mache | Apr 1 | May 6 | May 13 | Jun 24 – Jul 29 | 40–60 |
| Melon | Apr 1 | May 27 | Jun 3 | Aug 12 – Sep 30 | 70–100 |
| Microgreens | Apr 1 | May 6 | May 13 | May 20 – Jun 17 | 7–21 |
| Mitsuba | Apr 1 | May 6 | May 6 | Jul 1 – Aug 26 | 50–70 |
| Mizuna | Apr 1 | May 6 | May 13 | Jun 17 – Jul 15 | 30–45 |
| Mustard Greens | Apr 1 | May 6 | May 13 | Jun 17 – Aug 19 | 30–50 |
| Napa Cabbage | Apr 1 | May 6 | May 13 | Jul 8 – Aug 12 | 55–75 |
| Onion | Apr 1 | May 6 | May 13 | Aug 12 – Sep 30 | 90–120 |
| Pac Choi | Apr 1 | May 6 | May 13 | Jun 24 – Jul 22 | 40–55 |
| Parsnip | — | May 6 | — | Aug 19 – Sep 30 | 100–130 |
| Patty Pan Squash | Apr 1 | May 27 | Jun 3 | Jul 22 – Aug 19 | 45–60 |
| Peas | Apr 1 | May 6 | May 13 | Jul 8 – Sep 2 | 55–70 |
| Peppers | Feb 25 | May 27 | Jun 3 | Aug 5 – Oct 14 | 60–90 |
| Pole Beans | Mar 11 | May 27 | Jun 3 | Jul 29 – Sep 23 | 55–70 |
| Potatoes | Mar 11 | May 27 | Jun 3 | Aug 12 – Oct 21 | 70–120 |
| Pumpkin | Apr 1 | May 27 | Jun 3 | Sep 2 – Oct 21 | 85–120 |
| Purslane | Apr 1 | May 6 | May 13 | Jun 24 – Jul 29 | 40–60 |
| Radicchio | Apr 1 | May 6 | May 13 | Jul 15 – Aug 19 | 60–80 |
| Radish | — | May 6 | — | Jun 3 – Jun 24 | 22–35 |
| Rhubarb | — | — | Jun 10 | — | 365–730 |
| Romanesco | Apr 1 | May 6 | May 13 | Jul 29 – Sep 9 | 75–100 |
| Rutabaga | — | May 6 | — | Jul 29 – Sep 2 | 80–100 |
| Salsify | — | May 6 | — | Aug 19 – Sep 30 | 100–130 |
| Savoy Cabbage | Apr 1 | May 6 | May 13 | Jul 22 – Sep 16 | 70–110 |
| Scallions | Apr 1 | May 6 | May 13 | Jul 8 – Aug 5 | 50–70 |
| Scarlet Runner Beans | Mar 11 | May 27 | Jun 3 | Aug 5 – Sep 9 | 60–80 |
| Shallot | Apr 1 | May 6 | May 13 | Aug 12 – Sep 30 | 90–120 |
| Shiso | Mar 18 | May 20 | Jun 3 | Jul 29 – Sep 23 | 50–70 |
| Snap Peas | Mar 11 | May 27 | Jun 3 | Jul 29 – Sep 23 | 55–70 |
| Snow Peas | Apr 1 | May 6 | May 13 | Jul 8 – Sep 2 | 50–65 |
| Soybeans | — | May 27 | — | Aug 19 – Oct 14 | 80–120 |
| Spaghetti Squash | Apr 1 | May 27 | Jun 3 | Sep 2 – Sep 30 | 85–100 |
| Spinach | Apr 1 | May 6 | May 13 | Jun 17 – Aug 19 | 35–50 |
| Squash (Summer) | Apr 1 | May 27 | Jun 3 | Jul 22 – Sep 23 | 45–65 |
| Squash (Winter) | Apr 1 | May 27 | Jun 3 | Aug 26 – Oct 21 | 80–120 |
| Sunchoke | — | — | May 27 | Sep 16 – Oct 21 | 110–150 |
| Sunflower | Mar 11 | May 27 | Jun 3 | Aug 12 – Sep 30 | 70–100 |
| Sweet Corn | — | May 27 | — | Jul 29 – Sep 9 | 60–90 |
| Tatsoi | Apr 1 | May 6 | May 13 | Jun 17 – Jul 22 | 35–50 |
| Tomatillo | Mar 11 | May 27 | Jun 3 | Aug 5 – Oct 14 | 60–85 |
| Tomatoes | Mar 11 | May 27 | Jun 3 | Aug 5 – Oct 14 | 60–85 |
| Turnip | — | May 6 | — | Jun 17 – Jul 22 | 40–60 |
| Watercress | Apr 1 | May 6 | May 13 | Jun 24 – Jul 29 | 40–60 |
| Watermelon | Apr 1 | May 27 | Jun 3 | Aug 12 – Sep 30 | 70–100 |
| Wax Beans | — | May 27 | — | Jul 22 – Sep 16 | 50–65 |
| Zucchini | Apr 1 | May 27 | Jun 3 | Jul 22 – Sep 16 | 45–60 |
🍓 Fruits to Grow in Edmonton
22 fruits that grow well in Zone 4b with planting dates for Edmonton.
Show all 22 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 10 | Sep 9 – Nov 4 | 90–180 |
| Aronia | — | — | Jun 10 | — | 730–1095 |
| Blueberries | — | — | Jun 10 | — | 730–1095 |
| Cantaloupe | — | — | Jun 10 | Aug 19 – Sep 23 | 70–90 |
| Cranberries | — | — | Jun 10 | — | 730–1095 |
| Currants | — | — | Jun 10 | — | 730–1095 |
| Elderberries | — | — | Jun 10 | — | 730–1095 |
| Goji Berries | — | — | Jun 10 | — | 730–1095 |
| Gooseberries | — | — | Jun 10 | — | 730–1095 |
| Grapes | — | — | Jun 10 | — | 730–1095 |
| Ground Cherry | — | — | Jun 10 | Aug 19 – Oct 14 | 65–80 |
| Hardy Kiwi | — | — | Jun 10 | — | 1095–1825 |
| Haskaps | — | — | Jun 10 | — | 730–1095 |
| Honeydew | — | — | Jun 10 | Sep 2 – Oct 14 | 80–110 |
| Jostaberry | — | — | Jun 10 | — | 730–1095 |
| Lingonberries | — | — | Jun 10 | — | 730–1095 |
| Medlar | — | — | Jun 10 | — | 1095–1825 |
| Mulberries | — | — | Jun 10 | — | 730–1825 |
| Persimmon | — | — | Jun 10 | — | 1095–2555 |
| Raspberries | — | — | Jun 10 | — | 365–730 |
| Serviceberries | — | — | Jun 10 | — | 730–1095 |
| Strawberries | — | — | Jun 10 | Sep 9 – Nov 4 | 90–365 |
🌿 Herbs to Grow in Edmonton
32 herbs that grow well in Zone 4b with planting dates for Edmonton.
Show all 32 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Apr 1 | May 6 | May 6 | — | 365–730 |
| Anise | Apr 1 | May 6 | May 6 | Aug 5 – Sep 30 | 90–120 |
| Basil | Mar 18 | May 20 | Jun 3 | Jul 29 – Sep 30 | 50–75 |
| Bee Balm | — | — | May 20 | Aug 19 – Oct 14 | 90–120 |
| Borage | Apr 1 | May 6 | May 6 | Jul 1 – Aug 19 | 50–60 |
| Caraway | Apr 1 | May 6 | May 6 | — | 365–450 |
| Catnip | — | — | May 20 | Jul 22 – Sep 23 | 60–80 |
| Chamomile | Apr 1 | May 6 | May 6 | Jul 8 – Sep 16 | 60–90 |
| Chervil | Apr 1 | May 6 | May 6 | Jun 17 – Aug 19 | 40–60 |
| Chives | — | — | May 20 | Jul 22 – Sep 30 | 60–90 |
| Cilantro | Apr 1 | May 6 | May 6 | Jun 17 – Aug 19 | 40–60 |
| Comfrey | — | — | May 20 | Jul 22 – Sep 30 | 60–90 |
| Dill | Apr 1 | May 6 | May 6 | Jun 17 – Aug 19 | 40–60 |
| Echinacea | — | — | May 20 | Sep 23 – Oct 14 | 120–180 |
| Fennel (herb) | Apr 1 | May 6 | May 6 | Jul 8 – Sep 16 | 60–90 |
| Garlic Chives | — | — | May 20 | Jul 22 – Sep 30 | 60–90 |
| Horehound | — | — | May 20 | Aug 5 – Sep 30 | 75–90 |
| Hyssop | — | — | May 20 | Jul 29 – Sep 30 | 70–90 |
| Lemon Balm | — | — | May 20 | Jul 22 – Sep 9 | 60–70 |
| Lovage | — | — | May 20 | Jul 29 – Sep 30 | 70–90 |
| Mint | — | — | May 20 | Jul 22 – Sep 30 | 60–90 |
| Oregano | — | — | May 20 | Jul 22 – Sep 30 | 60–90 |
| Parsley | Apr 1 | May 6 | May 6 | Jul 8 – Sep 9 | 60–80 |
| Rue | — | — | May 20 | Jul 29 – Sep 30 | 70–90 |
| Sage | — | — | May 20 | Aug 5 – Sep 30 | 75–90 |
| Savory | — | — | May 20 | Jul 15 – Sep 9 | 50–70 |
| Sorrel | Apr 1 | May 6 | May 6 | Jun 17 – Aug 19 | 40–60 |
| Tarragon | — | — | May 20 | Jul 22 – Sep 30 | 60–90 |
| Thai Basil | Mar 18 | May 20 | Jun 3 | Jul 29 – Sep 30 | 50–75 |
| Thyme | — | — | May 20 | Jul 29 – Sep 30 | 70–90 |
| Valerian | — | — | May 20 | Sep 23 – Oct 14 | 120–180 |
| Yarrow | — | — | May 20 | Aug 19 – Oct 14 | 90–120 |
Monthly Planting Guide for Edmonton
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Edmonton.
Frequently Asked Questions
What planting zone is Edmonton, AB?
Edmonton is in USDA Hardiness Zone 4b. 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 Edmonton, AB?
Based on 30 years of NOAA weather station data, the median last spring frost in Edmonton falls around May 13. Plan transplants and direct-sow dates relative to this date.
When is the first fall frost in Edmonton, AB?
The median first fall frost in Edmonton arrives around October 7. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
Is Edmonton a good location for home gardening?
Edmonton scores 83/100 (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.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Edmonton gardeners in Zone 4b 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.
