Athabasca, AB — Planting Guide
Athabasca is in USDA Zone 4a. The average last spring frost is May 21 and the first fall frost is October 8, giving you a growing season of approximately 140 days.
At an elevation of 2,053 ft, Athabasca receives approximately 19.9 in of rainfall annually. Summer highs average 71°F with winter lows around 6°F. The predominant soil type is Dark Brown Chernozem.
🌡️ Zone
4a (-30°F to -25°F min)
❄️ Last Frost
May 21
🍂 First Frost
October 8
📅 Growing Season
140 days
⛰️ Elevation
2,053 ft
🌧️ Annual Rainfall
19.9 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 | 0.8 in | 7 days | — | None |
| Feb | 0.9 in | 7 days | — | None |
| Mar | 1.2 in | 9 days | — | None |
| Apr | 2.1 in | 9 days | 2.2 in | High |
| May | 2.4 in | 9 days | 1.9 in | High |
| Jun | 2.7 in | 11 days | 1.6 in | High |
| Jul | 2.2 in | 9 days | 2.1 in | High |
| Aug | 1.8 in | 9 days | 2.5 in | High |
| Sep | 1.7 in | 7 days | 2.6 in | High |
| Oct | 1.3 in | 7 days | 3 in | High |
| Nov | 1.5 in | 8 days | — | None |
| Dec | 1.2 in | 7 days | — | None |
Annual total: 19.8 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.
Athabasca Soil Profile
Soil Type
Dark Brown Chernozem
Soil pH
6.0-7.0
Drainage
Well Drained
Gardening Difficulty Score
Athabasca is a very forgiving place to garden. Most plants thrive here with minimal effort.
Local Gardening Help in Athabasca
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 Athabasca's climate and soil.
County Extension Office
Athabasca 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 Athabasca
Finding local nurseries & garden centers in Athabasca
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Athabasca'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 Athabasca AB" or "garden center Athabasca" 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 Athabasca AB" or check your extension office and local parks department. Facebook groups like "Athabasca 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
17 hours
Summer solstice daylight
Shortest Day
7 hours
Winter solstice daylight
Peak Sun Hours
11.2 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 | 7.6 hr | 3 hr | Short day |
| February | 9.4 hr | 4.1 hr | Short day |
| March | 11.5 hr | 5.6 hr | Short day |
| April | 13.8 hr | 7.4 hr | Neutral |
| May | 15.8 hr | 8.8 hr | Long day |
| June | 17 hr | 10.7 hr | Long day |
| July | 16.5 hr | 11.2 hr | Long day |
| August | 14.7 hr | 8.9 hr | Long day |
| September | 12.4 hr | 7.3 hr | Neutral |
| October | 10.2 hr | 5.1 hr | Short day |
| November | 8.1 hr | 3.4 hr | Short day |
| December | 7 hr | 2.8 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 Jun through Sep.
Best Month to Compost
Jul
Microbial activity peaks when soil is warm.
Active Composting
5 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 | 9°F | 18°F | ❄️ Dormant | ~36 weeks |
| Feb | 12°F | 19°F | ❄️ Dormant | ~36 weeks |
| Mar | 19°F | 24°F | ❄️ Dormant | ~36 weeks |
| Apr | 38°F | 34°F | ❄️ Dormant | ~36 weeks |
| May | 50°F | 44°F | ♻️ Active | ~14 weeks |
| Jun | 61°F | 56°F | ♻️ Active | ~14 weeks |
| Jul | 68°F | 61°F | 🔥 Peak | ~8 weeks |
| Aug | 67°F | 64°F | 🔥 Peak | ~8 weeks |
| Sep | 61°F | 59°F | ♻️ Active | ~14 weeks |
| Oct | 45°F | 49°F | 🐢 Slow | ~24 weeks |
| Nov | 34°F | 38°F | ❄️ Dormant | ~36 weeks |
| Dec | 19°F | 25°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 Athabasca
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 | Moderate | May, Jun, Jul |
| Slugs | Moderate | 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 Athabasca
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 | Aug 13 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | Apr 22 | Aug 13 | ✓ 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 5 | Sep 17 | — | 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 19 | Apr 30 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 25 | May 7 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 12 | May 7 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 10 | May 7 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 6 | May 7 | — | 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: 12 mph Summer: 9 mph
Fall: 11 mph Winter: 13 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
6.6/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Low
Relatively flat terrain (231 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
9,868 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 2,000 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Apr, May, Jun, Jul
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 19.8 inches of rain per year
- A 1,000 sq ft roof can collect roughly 9,868 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 Athabasca
Soil Type
Dark Brown Chernozem
Amend with compost each season to maintain fertility and structure.
Watering Needs
With 19.9 inches annually, regular irrigation is essential. Drip systems and heavy mulching conserve water.
Season Tips
140-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 Athabasca
96 vegetables that grow well in Zone 4a with planting dates for Athabasca.
Show all 96 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Apr 9 | Jun 4 | Jun 11 | Sep 3 – Oct 8 | 80–100 |
| Amaranth | Mar 19 | Jun 4 | Jun 11 | Sep 10 – Oct 29 | 90–120 |
| Arugula | Apr 9 | May 14 | May 21 | Jun 25 – Aug 27 | 30–50 |
| Asparagus | — | — | Jun 4 | — | 730–1095 |
| Beets | — | May 14 | — | Jul 9 – Aug 6 | 50–70 |
| Belgian Endive | Apr 9 | May 14 | May 21 | Sep 10 – Oct 15 | 110–150 |
| Black Beans | — | Jun 4 | — | Sep 3 – Oct 22 | 90–120 |
| Bok Choy | Apr 9 | May 14 | May 21 | Jul 2 – Aug 6 | 40–60 |
| Broccoli | Apr 9 | May 14 | May 21 | Jul 23 – Sep 3 | 60–90 |
| Broccoli Rabe | Apr 9 | May 14 | May 21 | Jul 2 – Aug 6 | 40–60 |
| Brussels Sprouts | Apr 9 | May 14 | May 21 | Aug 20 – Oct 15 | 90–130 |
| Butternut Squash | Apr 9 | Jun 4 | Jun 11 | Sep 10 – Oct 15 | 85–110 |
| Cabbage | Apr 9 | May 14 | May 21 | Jul 23 – Sep 17 | 60–100 |
| Carrots | — | May 14 | — | Jul 16 – Aug 20 | 60–80 |
| Cauliflower | Apr 9 | May 14 | May 21 | Jul 16 – Sep 17 | 55–100 |
| Celeriac | Apr 9 | May 14 | May 21 | Sep 3 – Oct 8 | 100–120 |
| Celery | Apr 9 | May 14 | May 21 | Aug 13 – Oct 8 | 80–120 |
| Celtuce | Apr 9 | May 14 | May 21 | Jul 23 – Sep 3 | 60–90 |
| Chard | Apr 9 | May 14 | May 21 | Jul 16 – Sep 3 | 50–60 |
| Chickpeas | Apr 9 | May 14 | May 21 | Aug 13 – Sep 24 | 80–110 |
| Chicory | Apr 9 | May 14 | May 21 | Jul 23 – Sep 3 | 60–85 |
| Chinese Cabbage | Apr 9 | May 14 | May 21 | Jul 16 – Aug 13 | 50–70 |
| Christmas Lima Beans | Mar 19 | Jun 4 | Jun 11 | Sep 3 – Oct 8 | 80–100 |
| Collard Greens | Apr 9 | May 14 | May 21 | Jul 16 – Sep 17 | 55–75 |
| Corn | — | Jun 4 | — | Aug 6 – Oct 1 | 60–100 |
| Cress | Apr 9 | May 14 | May 21 | Jun 4 – Jun 25 | 14–21 |
| Crookneck Squash | Apr 9 | Jun 4 | Jun 11 | Jul 30 – Aug 27 | 45–60 |
| Crosne | — | May 14 | — | Oct 15 – Oct 8 | 150–200 |
| Cucumber | Apr 9 | Jun 4 | Jun 11 | Aug 6 – Oct 1 | 50–70 |
| Daikon | — | May 14 | — | Jul 9 – Aug 6 | 50–70 |
| Delicata Squash | Apr 9 | Jun 4 | Jun 11 | Sep 3 – Oct 8 | 80–100 |
| Edamame | — | Jun 4 | — | Aug 20 – Oct 1 | 75–100 |
| Endive | Apr 9 | May 14 | May 21 | Jul 9 – Aug 13 | 45–65 |
| Escarole | Apr 9 | May 14 | May 21 | Jul 16 – Aug 13 | 50–70 |
| Fava Beans | Apr 9 | May 14 | May 21 | Aug 6 – Sep 17 | 75–100 |
| Fennel | Mar 19 | Jun 4 | Jun 11 | Aug 13 – Sep 24 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | Jun 4 | — | Jul 30 – Sep 24 | 50–65 |
| Horseradish | — | — | Jun 4 | Oct 8 – Oct 29 | 120–180 |
| Hubbard Squash | Apr 9 | Jun 4 | Jun 11 | Sep 24 – Oct 29 | 100–120 |
| Kabocha | Apr 9 | Jun 4 | Jun 11 | Sep 10 – Oct 8 | 85–100 |
| Kai Lan | Apr 9 | May 14 | May 21 | Jul 9 – Aug 6 | 45–60 |
| Kale | Apr 9 | May 14 | May 21 | Jul 16 – Sep 10 | 50–70 |
| Kidney Beans | — | Jun 4 | — | Sep 3 – Oct 8 | 85–110 |
| Kohlrabi | Apr 9 | May 14 | May 21 | Jul 9 – Aug 13 | 45–65 |
| Komatsuna | Apr 9 | May 14 | May 21 | Jun 25 – Jul 30 | 35–50 |
| Leeks | Apr 9 | May 14 | May 21 | Aug 20 – Oct 15 | 90–150 |
| Lentils | Apr 9 | May 14 | May 21 | Aug 13 – Sep 24 | 80–110 |
| Lettuce | Apr 9 | May 14 | May 21 | Jun 25 – Sep 3 | 30–60 |
| Lima Beans | — | Jun 4 | — | Aug 6 – Sep 17 | 60–90 |
| Mache | Apr 9 | May 14 | May 21 | Jul 2 – Aug 6 | 40–60 |
| Melon | Apr 9 | Jun 4 | Jun 11 | Aug 20 – Oct 8 | 70–100 |
| Microgreens | Apr 9 | May 14 | May 21 | May 28 – Jun 25 | 7–21 |
| Mitsuba | Apr 9 | May 14 | May 14 | Jul 9 – Sep 3 | 50–70 |
| Mizuna | Apr 9 | May 14 | May 21 | Jun 25 – Jul 23 | 30–45 |
| Mustard Greens | Apr 9 | May 14 | May 21 | Jun 25 – Aug 27 | 30–50 |
| Napa Cabbage | Apr 9 | May 14 | May 21 | Jul 16 – Aug 20 | 55–75 |
| Onion | Apr 9 | May 14 | May 21 | Aug 20 – Oct 8 | 90–120 |
| Pac Choi | Apr 9 | May 14 | May 21 | Jul 2 – Jul 30 | 40–55 |
| Parsnip | — | May 14 | — | Aug 27 – Oct 8 | 100–130 |
| Patty Pan Squash | Apr 9 | Jun 4 | Jun 11 | Jul 30 – Aug 27 | 45–60 |
| Peas | Apr 9 | May 14 | May 21 | Jul 16 – Sep 10 | 55–70 |
| Peppers | Mar 5 | Jun 4 | Jun 11 | Aug 13 – Oct 22 | 60–90 |
| Pole Beans | Mar 19 | Jun 4 | Jun 11 | Aug 6 – Oct 1 | 55–70 |
| Potatoes | Mar 19 | Jun 4 | Jun 11 | Aug 20 – Oct 29 | 70–120 |
| Pumpkin | Apr 9 | Jun 4 | Jun 11 | Sep 10 – Oct 29 | 85–120 |
| Purslane | Apr 9 | May 14 | May 21 | Jul 2 – Aug 6 | 40–60 |
| Radicchio | Apr 9 | May 14 | May 21 | Jul 23 – Aug 27 | 60–80 |
| Radish | — | May 14 | — | Jun 11 – Jul 2 | 22–35 |
| Rhubarb | — | — | Jun 18 | — | 365–730 |
| Romanesco | Apr 9 | May 14 | May 21 | Aug 6 – Sep 17 | 75–100 |
| Rutabaga | — | May 14 | — | Aug 6 – Sep 10 | 80–100 |
| Salsify | — | May 14 | — | Aug 27 – Oct 8 | 100–130 |
| Savoy Cabbage | Apr 9 | May 14 | May 21 | Jul 30 – Sep 24 | 70–110 |
| Scallions | Apr 9 | May 14 | May 21 | Jul 16 – Aug 13 | 50–70 |
| Scarlet Runner Beans | Mar 19 | Jun 4 | Jun 11 | Aug 13 – Sep 17 | 60–80 |
| Shallot | Apr 9 | May 14 | May 21 | Aug 20 – Oct 8 | 90–120 |
| Shiso | Mar 26 | May 28 | Jun 11 | Aug 6 – Oct 1 | 50–70 |
| Snap Peas | Mar 19 | Jun 4 | Jun 11 | Aug 6 – Oct 1 | 55–70 |
| Snow Peas | Apr 9 | May 14 | May 21 | Jul 16 – Sep 10 | 50–65 |
| Soybeans | — | Jun 4 | — | Aug 27 – Oct 22 | 80–120 |
| Spaghetti Squash | Apr 9 | Jun 4 | Jun 11 | Sep 10 – Oct 8 | 85–100 |
| Spinach | Apr 9 | May 14 | May 21 | Jun 25 – Aug 27 | 35–50 |
| Squash (Summer) | Apr 9 | Jun 4 | Jun 11 | Jul 30 – Oct 1 | 45–65 |
| Squash (Winter) | Apr 9 | Jun 4 | Jun 11 | Sep 3 – Oct 29 | 80–120 |
| Sunchoke | — | — | Jun 4 | Sep 24 – Oct 29 | 110–150 |
| Sunflower | Mar 19 | Jun 4 | Jun 11 | Aug 20 – Oct 8 | 70–100 |
| Sweet Corn | — | Jun 4 | — | Aug 6 – Sep 17 | 60–90 |
| Tatsoi | Apr 9 | May 14 | May 21 | Jun 25 – Jul 30 | 35–50 |
| Tomatillo | Mar 19 | Jun 4 | Jun 11 | Aug 13 – Oct 22 | 60–85 |
| Tomatoes | Mar 19 | Jun 4 | Jun 11 | Aug 13 – Oct 22 | 60–85 |
| Turnip | — | May 14 | — | Jun 25 – Jul 30 | 40–60 |
| Watercress | Apr 9 | May 14 | May 21 | Jul 2 – Aug 6 | 40–60 |
| Watermelon | Apr 9 | Jun 4 | Jun 11 | Aug 20 – Oct 8 | 70–100 |
| Wax Beans | — | Jun 4 | — | Jul 30 – Sep 24 | 50–65 |
| Zucchini | Apr 9 | Jun 4 | Jun 11 | Jul 30 – Sep 24 | 45–60 |
🍓 Fruits to Grow in Athabasca
22 fruits that grow well in Zone 4a with planting dates for Athabasca.
Show all 22 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 18 | Sep 17 – Nov 12 | 90–180 |
| Aronia | — | — | Jun 18 | — | 730–1095 |
| Blueberries | — | — | Jun 18 | — | 730–1095 |
| Cantaloupe | — | — | Jun 18 | Aug 27 – Oct 1 | 70–90 |
| Cranberries | — | — | Jun 18 | — | 730–1095 |
| Currants | — | — | Jun 18 | — | 730–1095 |
| Elderberries | — | — | Jun 18 | — | 730–1095 |
| Goji Berries | — | — | Jun 18 | — | 730–1095 |
| Gooseberries | — | — | Jun 18 | — | 730–1095 |
| Grapes | — | — | Jun 18 | — | 730–1095 |
| Ground Cherry | — | — | Jun 18 | Aug 27 – Oct 22 | 65–80 |
| Hardy Kiwi | — | — | Jun 18 | — | 1095–1825 |
| Haskaps | — | — | Jun 18 | — | 730–1095 |
| Honeydew | — | — | Jun 18 | Sep 10 – Oct 22 | 80–110 |
| Jostaberry | — | — | Jun 18 | — | 730–1095 |
| Lingonberries | — | — | Jun 18 | — | 730–1095 |
| Medlar | — | — | Jun 18 | — | 1095–1825 |
| Mulberries | — | — | Jun 18 | — | 730–1825 |
| Persimmon | — | — | Jun 18 | — | 1095–2555 |
| Raspberries | — | — | Jun 18 | — | 365–730 |
| Serviceberries | — | — | Jun 18 | — | 730–1095 |
| Strawberries | — | — | Jun 18 | Sep 17 – Nov 12 | 90–365 |
🌿 Herbs to Grow in Athabasca
32 herbs that grow well in Zone 4a with planting dates for Athabasca.
Show all 32 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Apr 9 | May 14 | May 14 | — | 365–730 |
| Anise | Apr 9 | May 14 | May 14 | Aug 13 – Oct 8 | 90–120 |
| Basil | Mar 26 | May 28 | Jun 11 | Aug 6 – Oct 8 | 50–75 |
| Bee Balm | — | — | May 28 | Aug 27 – Oct 22 | 90–120 |
| Borage | Apr 9 | May 14 | May 14 | Jul 9 – Aug 27 | 50–60 |
| Caraway | Apr 9 | May 14 | May 14 | — | 365–450 |
| Catnip | — | — | May 28 | Jul 30 – Oct 1 | 60–80 |
| Chamomile | Apr 9 | May 14 | May 14 | Jul 16 – Sep 24 | 60–90 |
| Chervil | Apr 9 | May 14 | May 14 | Jun 25 – Aug 27 | 40–60 |
| Chives | — | — | May 28 | Jul 30 – Oct 8 | 60–90 |
| Cilantro | Apr 9 | May 14 | May 14 | Jun 25 – Aug 27 | 40–60 |
| Comfrey | — | — | May 28 | Jul 30 – Oct 8 | 60–90 |
| Dill | Apr 9 | May 14 | May 14 | Jun 25 – Aug 27 | 40–60 |
| Echinacea | — | — | May 28 | Oct 1 – Oct 22 | 120–180 |
| Fennel (herb) | Apr 9 | May 14 | May 14 | Jul 16 – Sep 24 | 60–90 |
| Garlic Chives | — | — | May 28 | Jul 30 – Oct 8 | 60–90 |
| Horehound | — | — | May 28 | Aug 13 – Oct 8 | 75–90 |
| Hyssop | — | — | May 28 | Aug 6 – Oct 8 | 70–90 |
| Lemon Balm | — | — | May 28 | Jul 30 – Sep 17 | 60–70 |
| Lovage | — | — | May 28 | Aug 6 – Oct 8 | 70–90 |
| Mint | — | — | May 28 | Jul 30 – Oct 8 | 60–90 |
| Oregano | — | — | May 28 | Jul 30 – Oct 8 | 60–90 |
| Parsley | Apr 9 | May 14 | May 14 | Jul 16 – Sep 17 | 60–80 |
| Rue | — | — | May 28 | Aug 6 – Oct 8 | 70–90 |
| Sage | — | — | May 28 | Aug 13 – Oct 8 | 75–90 |
| Savory | — | — | May 28 | Jul 23 – Sep 17 | 50–70 |
| Sorrel | Apr 9 | May 14 | May 14 | Jun 25 – Aug 27 | 40–60 |
| Tarragon | — | — | May 28 | Jul 30 – Oct 8 | 60–90 |
| Thai Basil | Mar 26 | May 28 | Jun 11 | Aug 6 – Oct 8 | 50–75 |
| Thyme | — | — | May 28 | Aug 6 – Oct 8 | 70–90 |
| Valerian | — | — | May 28 | Oct 1 – Oct 22 | 120–180 |
| Yarrow | — | — | May 28 | Aug 27 – Oct 22 | 90–120 |
Monthly Planting Guide for Athabasca
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Athabasca.
Frequently Asked Questions
What planting zone is Athabasca, AB?
Athabasca is in USDA Hardiness Zone 4a. 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 Athabasca, AB?
Based on 30 years of NOAA weather station data, the median last spring frost in Athabasca falls around May 21. Plan transplants and direct-sow dates relative to this date.
When is the first fall frost in Athabasca, AB?
The median first fall frost in Athabasca arrives around October 8. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
Is Athabasca a good location for home gardening?
Athabasca scores 85/100 (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 Athabasca gardeners in Zone 4a 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.
