Waldo County, ME — Planting Guide
Waldo County is in USDA Zone 5a. The average last spring frost is May 8 and the first fall frost is October 6, giving you a growing season of approximately 151 days.
At an elevation of 966 ft, Waldo County receives approximately 46 in of rainfall annually. Summer highs average 84°F with winter lows around 16°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 23 days year to year — ranging from April 28 in warm years to May 21 in cold years. The growing season is trending longer by about 1.4 days per decade. Waldo County scores 73/100 (Good) on the Microclimate Index.
🌡️ Zone
5a (-20°F to -15°F min)
❄️ Last Frost
May 8
🍂 First Frost
October 6
📅 Growing Season
151 days
⛰️ Elevation
966 ft
🌧️ Annual Rainfall
46 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 | 3.1 in | 11 days | — | None |
| Feb | 2.7 in | 11 days | — | None |
| Mar | 4.4 in | 10 days | — | None |
| Apr | 4.1 in | 10 days | 0.2 in | Low |
| May | 4.8 in | 10 days | — | Low |
| Jun | 4.1 in | 11 days | 0.2 in | Low |
| Jul | 4.3 in | 10 days | — | Low |
| Aug | 3.7 in | 10 days | 0.6 in | Moderate |
| Sep | 3.6 in | 7 days | 0.7 in | Moderate |
| Oct | 3.6 in | 7 days | 0.7 in | Moderate |
| Nov | 4 in | 9 days | — | None |
| Dec | 3.5 in | 11 days | — | None |
Annual total: 45.9 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.
Waldo County Soil Profile
Soil Type
Silt Loam
Soil pH
4.8-6.7
Drainage
Well Drained
Frost Risk Probability
Based on 31 years of NOAA weather station data from 3 stations
Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.
How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.
| Planting Strategy | Last Spring Frost | First Fall Frost | Frost-Free Days |
|---|---|---|---|
| Conservative (safest) | May 21 | Oct 23 | 155 days |
| Cautious | May 12 | Oct 13 | 154 days |
| Average year | May 8 | Oct 6 | 151 days |
| Optimistic | May 3 | Oct 2 | 152 days |
| Aggressive (risky) | Apr 28 | Sep 23 | 148 days |
Not very — frost dates can vary by ±23 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Yes — growing seasons are getting longer here (about 1.4 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Waldo County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Waldo County
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 Waldo County's climate and soil.
County Extension Office
Waldo County University of Maine Cooperative Extension Extension Office
Phone: 207-581-3188
Visit Extension Office Website →
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 Waldo County
Finding local nurseries & garden centers in Waldo County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Waldo County'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 Waldo County ME" or "garden center Waldo County" 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 Waldo County ME" or check your extension office and local parks department. Facebook groups like "Waldo County Gardeners" or "Maine 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
15.3 hours
Summer solstice daylight
Shortest Day
8.7 hours
Winter solstice daylight
Peak Sun Hours
8.7 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 | 9 hr | 3.3 hr | Short day |
| February | 10.2 hr | 4.4 hr | Short day |
| March | 11.6 hr | 5 hr | Short day |
| April | 13.2 hr | 6.6 hr | Neutral |
| May | 14.6 hr | 7.8 hr | Long day |
| June | 15.3 hr | 8.2 hr | Long day |
| July | 15 hr | 8.7 hr | Long day |
| August | 13.9 hr | 7.6 hr | Neutral |
| September | 12.3 hr | 6.6 hr | Neutral |
| October | 10.7 hr | 5 hr | Short day |
| November | 9.4 hr | 3.5 hr | Short day |
| December | 8.7 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 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 | 21°F | 32°F | ❄️ Dormant | ~36 weeks |
| Feb | 21°F | 31°F | ❄️ Dormant | ~36 weeks |
| Mar | 33°F | 34°F | ❄️ Dormant | ~36 weeks |
| Apr | 45°F | 44°F | 🐢 Slow | ~24 weeks |
| May | 60°F | 54°F | ♻️ Active | ~14 weeks |
| Jun | 68°F | 64°F | 🔥 Peak | ~8 weeks |
| Jul | 75°F | 71°F | 🔥 Peak | ~8 weeks |
| Aug | 76°F | 73°F | 🔥 Peak | ~8 weeks |
| Sep | 69°F | 68°F | 🔥 Peak | ~8 weeks |
| Oct | 56°F | 58°F | ♻️ Active | ~14 weeks |
| Nov | 44°F | 48°F | 🐢 Slow | ~24 weeks |
| Dec | 30°F | 39°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 Waldo County
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
Moderate — watch for mildew and blight during wet periods.
Seasonal Risk
View 5 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash bugs | Moderate | Jun, Jul, Aug |
| Tomato hornworms | Low | Jul, Aug |
| Cabbage loopers | Moderate | May, Jun, Jul, Aug |
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 Waldo County
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 17 | Aug 11 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | May 16 | Aug 11 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Apr 9 | Jul 28 | ✓ 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 19 | Sep 22 | — | 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 28 | Apr 24 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Aug 15 | Apr 24 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 25 | Apr 17 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 9 | Apr 24 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 5 | Apr 24 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 1 | Apr 24 | — | 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: 14 mph Summer: 12 mph
Fall: 10 mph Winter: 17 mph
Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.
Windbreak Benefit
7.3/10
Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.
Frost Pocket Risk
Low
Relatively flat terrain (178 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
22,876 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 750 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Mar, Apr, May, Jul
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 45.9 inches of rain per year
- A 1,000 sq ft roof can collect roughly 22,876 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 Waldo County
Soil Type
Silt Loam
Soil pH 4.8–6.7 · Moderately Well Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
Watering Needs
Drought stress: 1.5/10
Waldo County has very low drought pressure. Natural rainfall usually meets garden needs — water only during extended dry spells.
Season Tips
151-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 Waldo County
106 vegetables that grow well in Zone 5a with planting dates for Waldo County.
Show all 106 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Apr 3 | May 15 | May 22 | Aug 14 – Sep 18 | 80–100 |
| Amaranth | Mar 13 | May 15 | May 22 | Aug 21 – Oct 9 | 90–120 |
| Arugula | Apr 3 | Apr 24 | May 8 | Jun 12 – Aug 14 | 30–50 |
| Asparagus | — | — | May 22 | — | 730–1095 |
| Beets | — | Apr 24 | — | Jun 19 – Jul 17 | 50–70 |
| Belgian Endive | Apr 3 | Apr 24 | May 8 | Aug 28 – Oct 23 | 110–150 |
| Bitter Melon | Mar 13 | May 15 | May 22 | Jul 24 – Sep 4 | 60–90 |
| Black Beans | — | May 15 | — | Aug 14 – Oct 2 | 90–120 |
| Bok Choy | Apr 3 | Apr 24 | May 8 | Jun 19 – Jul 24 | 40–60 |
| Broccoli | Apr 3 | Apr 24 | May 8 | Jul 10 – Aug 21 | 60–90 |
| Broccoli Rabe | Apr 3 | Apr 24 | May 8 | Jun 19 – Jul 24 | 40–60 |
| Brussels Sprouts | Apr 3 | Apr 24 | May 8 | Aug 7 – Oct 2 | 90–130 |
| Butternut Squash | Apr 3 | May 15 | May 22 | Aug 21 – Sep 25 | 85–110 |
| Cabbage | Apr 3 | Apr 24 | May 8 | Jul 10 – Sep 4 | 60–100 |
| Calabash | Mar 13 | May 15 | May 22 | Aug 14 – Oct 9 | 80–120 |
| Carrots | — | Apr 24 | — | Jun 26 – Jul 31 | 60–80 |
| Cauliflower | Apr 3 | Apr 24 | May 8 | Jul 3 – Sep 4 | 55–100 |
| Celeriac | Apr 3 | Apr 24 | May 8 | Aug 21 – Sep 25 | 100–120 |
| Celery | Apr 3 | Apr 24 | May 8 | Jul 31 – Sep 25 | 80–120 |
| Celtuce | Apr 3 | Apr 24 | May 8 | Jul 10 – Aug 21 | 60–90 |
| Chard | Apr 3 | Apr 24 | May 8 | Jul 3 – Aug 21 | 50–60 |
| Chickpeas | Apr 3 | Apr 24 | May 8 | Jul 31 – Sep 11 | 80–110 |
| Chicory | Apr 3 | Apr 24 | May 8 | Jul 10 – Aug 21 | 60–85 |
| Chinese Cabbage | Apr 3 | Apr 24 | May 8 | Jul 3 – Jul 31 | 50–70 |
| Christmas Lima Beans | Mar 13 | May 15 | May 22 | Aug 14 – Sep 18 | 80–100 |
| Collard Greens | Apr 3 | Apr 24 | May 8 | Jul 3 – Sep 4 | 55–75 |
| Corn | — | May 15 | — | Jul 17 – Sep 11 | 60–100 |
| Cowpeas | — | May 15 | — | Jul 17 – Aug 28 | 60–90 |
| Cress | Apr 3 | Apr 24 | May 8 | May 22 – Jun 12 | 14–21 |
| Crookneck Squash | Apr 3 | May 15 | May 22 | Jul 10 – Aug 7 | 45–60 |
| Crosne | — | Apr 24 | — | Sep 25 – Oct 9 | 150–200 |
| Cucumber | Apr 3 | May 15 | May 22 | Jul 17 – Sep 11 | 50–70 |
| Daikon | — | Apr 24 | — | Jun 19 – Jul 17 | 50–70 |
| Delicata Squash | Apr 3 | May 15 | May 22 | Aug 14 – Sep 18 | 80–100 |
| Edamame | — | May 15 | — | Jul 31 – Sep 11 | 75–100 |
| Eggplant | Feb 27 | May 15 | May 22 | Jul 31 – Oct 2 | 65–85 |
| Endive | Apr 3 | Apr 24 | May 8 | Jun 26 – Jul 31 | 45–65 |
| Escarole | Apr 3 | Apr 24 | May 8 | Jul 3 – Jul 31 | 50–70 |
| Fava Beans | Apr 3 | Apr 24 | May 8 | Jul 24 – Sep 4 | 75–100 |
| Fennel | Mar 13 | May 15 | May 22 | Jul 24 – Sep 4 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | May 15 | — | Jul 10 – Sep 4 | 50–65 |
| Horseradish | — | — | May 22 | Sep 25 – Nov 6 | 120–180 |
| Hot Peppers | Feb 27 | May 15 | May 22 | Jul 31 – Nov 6 | 70–120 |
| Hubbard Squash | Apr 3 | May 15 | May 22 | Sep 4 – Oct 9 | 100–120 |
| Kabocha | Apr 3 | May 15 | May 22 | Aug 21 – Sep 18 | 85–100 |
| Kai Lan | Apr 3 | Apr 24 | May 8 | Jun 26 – Jul 24 | 45–60 |
| Kale | Apr 3 | Apr 24 | May 8 | Jul 3 – Aug 28 | 50–70 |
| Kidney Beans | — | May 15 | — | Aug 14 – Sep 18 | 85–110 |
| Kohlrabi | Apr 3 | Apr 24 | May 8 | Jun 26 – Jul 31 | 45–65 |
| Komatsuna | Apr 3 | Apr 24 | May 8 | Jun 12 – Jul 17 | 35–50 |
| Leeks | Apr 3 | Apr 24 | May 8 | Aug 7 – Oct 23 | 90–150 |
| Lentils | Apr 3 | Apr 24 | May 8 | Jul 31 – Sep 11 | 80–110 |
| Lettuce | Apr 3 | Apr 24 | May 8 | Jun 12 – Aug 21 | 30–60 |
| Lima Beans | — | May 15 | — | Jul 17 – Aug 28 | 60–90 |
| Mache | Apr 3 | Apr 24 | May 8 | Jun 19 – Jul 24 | 40–60 |
| Melon | Apr 3 | May 15 | May 22 | Jul 31 – Sep 18 | 70–100 |
| Microgreens | Apr 3 | Apr 24 | May 8 | May 15 – Jun 12 | 7–21 |
| Mitsuba | Apr 3 | Apr 24 | May 1 | Jun 26 – Aug 21 | 50–70 |
| Mizuna | Apr 3 | Apr 24 | May 8 | Jun 12 – Jul 10 | 30–45 |
| Mustard Greens | Apr 3 | Apr 24 | May 8 | Jun 12 – Aug 14 | 30–50 |
| Napa Cabbage | Apr 3 | Apr 24 | May 8 | Jul 3 – Aug 7 | 55–75 |
| New Zealand Spinach | Mar 13 | May 15 | May 22 | Jul 17 – Aug 14 | 55–70 |
| Okra | Mar 13 | May 15 | May 22 | Jul 17 – Sep 11 | 50–65 |
| Onion | Apr 3 | Apr 24 | May 8 | Aug 7 – Sep 25 | 90–120 |
| Pac Choi | Apr 3 | Apr 24 | May 8 | Jun 19 – Jul 17 | 40–55 |
| Parsnip | — | Apr 24 | — | Aug 7 – Sep 18 | 100–130 |
| Patty Pan Squash | Apr 3 | May 15 | May 22 | Jul 10 – Aug 7 | 45–60 |
| Peas | Apr 3 | Apr 24 | May 8 | Jul 3 – Aug 28 | 55–70 |
| Peppers | Feb 27 | May 15 | May 22 | Jul 24 – Oct 2 | 60–90 |
| Pole Beans | Mar 13 | May 15 | May 22 | Jul 17 – Sep 11 | 55–70 |
| Potatoes | Mar 13 | May 15 | May 22 | Jul 31 – Oct 9 | 70–120 |
| Pumpkin | Apr 3 | May 15 | May 22 | Aug 21 – Oct 9 | 85–120 |
| Purslane | Apr 3 | Apr 24 | May 8 | Jun 19 – Jul 24 | 40–60 |
| Radicchio | Apr 3 | Apr 24 | May 8 | Jul 10 – Aug 14 | 60–80 |
| Radish | — | Apr 24 | — | May 22 – Jun 12 | 22–35 |
| Rhubarb | — | — | May 29 | — | 365–730 |
| Romanesco | Apr 3 | Apr 24 | May 8 | Jul 24 – Sep 4 | 75–100 |
| Rutabaga | — | Apr 24 | — | Jul 17 – Aug 21 | 80–100 |
| Salsify | — | Apr 24 | — | Aug 7 – Sep 18 | 100–130 |
| Savoy Cabbage | Apr 3 | Apr 24 | May 8 | Jul 17 – Sep 11 | 70–110 |
| Scallions | Apr 3 | Apr 24 | May 8 | Jul 3 – Jul 31 | 50–70 |
| Scarlet Runner Beans | Mar 13 | May 15 | May 22 | Jul 24 – Aug 28 | 60–80 |
| Shallot | Apr 3 | Apr 24 | May 8 | Aug 7 – Sep 25 | 90–120 |
| Shiso | Mar 20 | May 15 | May 22 | Jul 17 – Sep 11 | 50–70 |
| Snap Peas | Mar 13 | May 15 | May 22 | Jul 17 – Sep 11 | 55–70 |
| Snow Peas | Apr 3 | Apr 24 | May 8 | Jul 3 – Aug 28 | 50–65 |
| Soybeans | — | May 15 | — | Aug 7 – Oct 2 | 80–120 |
| Spaghetti Squash | Apr 3 | May 15 | May 22 | Aug 21 – Sep 18 | 85–100 |
| Spinach | Apr 3 | Apr 24 | May 8 | Jun 12 – Aug 14 | 35–50 |
| Squash (Summer) | Apr 3 | May 15 | May 22 | Jul 10 – Sep 11 | 45–65 |
| Squash (Winter) | Apr 3 | May 15 | May 22 | Aug 14 – Oct 9 | 80–120 |
| Sunchoke | — | — | May 22 | Sep 11 – Nov 6 | 110–150 |
| Sunflower | Mar 13 | May 15 | May 22 | Jul 31 – Sep 18 | 70–100 |
| Sweet Corn | — | May 15 | — | Jul 17 – Aug 28 | 60–90 |
| Sweet Potatoes | Mar 13 | May 15 | May 22 | Aug 21 – Oct 9 | 90–120 |
| Tatsoi | Apr 3 | Apr 24 | May 8 | Jun 12 – Jul 17 | 35–50 |
| Tomatillo | Mar 13 | May 15 | May 22 | Jul 24 – Oct 2 | 60–85 |
| Tomatoes | Mar 13 | May 15 | May 22 | Jul 24 – Oct 2 | 60–85 |
| Turnip | — | Apr 24 | — | Jun 5 – Jul 10 | 40–60 |
| Watercress | Apr 3 | Apr 24 | May 8 | Jun 19 – Jul 24 | 40–60 |
| Watermelon | Apr 3 | May 15 | May 22 | Jul 31 – Sep 18 | 70–100 |
| Wax Beans | — | May 15 | — | Jul 10 – Sep 4 | 50–65 |
| Winter Melon | Mar 13 | May 15 | May 22 | Aug 21 – Oct 9 | 90–120 |
| Yard Long Beans | Mar 13 | May 15 | May 22 | Jul 17 – Aug 28 | 55–80 |
| Zucchini | Apr 3 | May 15 | May 22 | Jul 10 – Sep 4 | 45–60 |
🍓 Fruits to Grow in Waldo County
27 fruits that grow well in Zone 5a with planting dates for Waldo County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 29 | Aug 28 – Nov 13 | 90–180 |
| Aronia | — | — | May 29 | — | 730–1095 |
| Blackberries | — | — | May 29 | — | 365–730 |
| Blueberries | — | — | May 29 | — | 730–1095 |
| Boysenberries | — | — | May 29 | — | 365–730 |
| Cantaloupe | — | — | May 29 | Aug 7 – Sep 11 | 70–90 |
| Che Fruit | — | — | May 29 | — | 1095–1825 |
| Cranberries | — | — | May 29 | — | 730–1095 |
| Currants | — | — | May 29 | — | 730–1095 |
| Elderberries | — | — | May 29 | — | 730–1095 |
| Goji Berries | — | — | May 29 | — | 730–1095 |
| Gooseberries | — | — | May 29 | — | 730–1095 |
| Grapes | — | — | May 29 | — | 730–1095 |
| Ground Cherry | — | — | May 29 | Aug 7 – Oct 2 | 65–80 |
| Hardy Kiwi | — | — | May 29 | — | 1095–1825 |
| Haskaps | — | — | May 29 | — | 730–1095 |
| Honeydew | — | — | May 29 | Aug 21 – Oct 2 | 80–110 |
| Jostaberry | — | — | May 29 | — | 730–1095 |
| Lingonberries | — | — | May 29 | — | 730–1095 |
| Medlar | — | — | May 29 | — | 1095–1825 |
| Mulberries | — | — | May 29 | — | 730–1825 |
| Pawpaw | — | — | May 29 | — | 1095–2555 |
| Persimmon | — | — | May 29 | — | 1095–2555 |
| Quince | — | — | May 29 | — | 1095–1825 |
| Raspberries | — | — | May 29 | — | 365–730 |
| Serviceberries | — | — | May 29 | — | 730–1095 |
| Strawberries | — | — | May 29 | Aug 28 – Nov 13 | 90–365 |
🌿 Herbs to Grow in Waldo County
37 herbs that grow well in Zone 5a with planting dates for Waldo County.
Show all 37 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Apr 3 | Apr 24 | May 1 | — | 365–730 |
| Anise | Apr 3 | Apr 24 | May 1 | Jul 31 – Oct 16 | 90–120 |
| Basil | Mar 20 | May 15 | May 22 | Jul 17 – Sep 18 | 50–75 |
| Bee Balm | — | — | May 15 | Aug 14 – Oct 30 | 90–120 |
| Borage | Apr 3 | Apr 24 | May 1 | Jun 26 – Aug 14 | 50–60 |
| Caraway | Apr 3 | Apr 24 | May 1 | — | 365–450 |
| Catnip | — | — | May 15 | Jul 17 – Sep 18 | 60–80 |
| Chamomile | Apr 3 | Apr 24 | May 1 | Jul 3 – Sep 11 | 60–90 |
| Chervil | Apr 3 | Apr 24 | May 1 | Jun 12 – Aug 14 | 40–60 |
| Chives | — | — | May 15 | Jul 17 – Sep 25 | 60–90 |
| Cilantro | Apr 3 | Apr 24 | May 1 | Jun 12 – Aug 14 | 40–60 |
| Comfrey | — | — | May 15 | Jul 17 – Sep 25 | 60–90 |
| Cumin | Apr 3 | Apr 24 | May 1 | Aug 14 – Oct 16 | 100–120 |
| Dill | Apr 3 | Apr 24 | May 1 | Jun 12 – Aug 14 | 40–60 |
| Echinacea | — | — | May 15 | Sep 18 – Oct 30 | 120–180 |
| Epazote | Mar 20 | May 15 | May 22 | Jul 10 – Sep 4 | 45–60 |
| Fennel (herb) | Apr 3 | Apr 24 | May 1 | Jul 3 – Sep 11 | 60–90 |
| Feverfew | — | — | May 15 | Aug 14 – Oct 30 | 90–120 |
| Garlic Chives | — | — | May 15 | Jul 17 – Sep 25 | 60–90 |
| Horehound | — | — | May 15 | Jul 31 – Sep 25 | 75–90 |
| Hyssop | — | — | May 15 | Jul 24 – Sep 25 | 70–90 |
| Lavender | — | — | May 15 | Aug 14 – Oct 30 | 90–200 |
| Lemon Balm | — | — | May 15 | Jul 17 – Sep 4 | 60–70 |
| Lemon Thyme | — | — | May 15 | Jul 24 – Sep 25 | 70–90 |
| Lovage | — | — | May 15 | Jul 24 – Sep 25 | 70–90 |
| Mint | — | — | May 15 | Jul 17 – Sep 25 | 60–90 |
| Oregano | — | — | May 15 | Jul 17 – Sep 25 | 60–90 |
| Parsley | Apr 3 | Apr 24 | May 1 | Jul 3 – Sep 4 | 60–80 |
| Rue | — | — | May 15 | Jul 24 – Sep 25 | 70–90 |
| Sage | — | — | May 15 | Jul 31 – Sep 25 | 75–90 |
| Savory | — | — | May 15 | Jul 10 – Sep 4 | 50–70 |
| Sorrel | Apr 3 | Apr 24 | May 1 | Jun 12 – Aug 14 | 40–60 |
| Tarragon | — | — | May 15 | Jul 17 – Sep 25 | 60–90 |
| Thai Basil | Mar 20 | May 15 | May 22 | Jul 17 – Sep 18 | 50–75 |
| Thyme | — | — | May 15 | Jul 24 – Sep 25 | 70–90 |
| Valerian | — | — | May 15 | Sep 18 – Oct 30 | 120–180 |
| Yarrow | — | — | May 15 | Aug 14 – Oct 30 | 90–120 |
Monthly Planting Guide for Waldo County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Waldo County.
Frequently Asked Questions
What planting zone is Waldo County, ME?
Waldo County is in USDA Hardiness Zone 5a. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.
When is the last frost in Waldo County, ME?
Based on 31 years of NOAA weather station data, the median last spring frost in Waldo County falls around May 8. In 8 out of 10 years, last frost lands between April 28 and May 21 — a 23-day window of variability. Use May 21 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Waldo County, ME?
The median first fall frost in Waldo County arrives around October 6. In cold years it can arrive as early as September 23; in mild years as late as October 23. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Waldo County?
Waldo County has a frost-free growing season of approximately 151 days. This is enough time for most warm-season crops including tomatoes, peppers, and squash with proper timing. Climate records show the growing season is trending longer by about 1.4 days per decade.
What is the soil like in Waldo County for gardening?
Waldo County has predominantly Silt Loam soil with a pH range of 4.8–6.7 and Moderately Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Waldo County?
Waldo County has commercial agriculture that includes Dairy, Corn, Hay. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Waldo County a good location for home gardening?
Waldo County scores 73/100 (Good) 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 Waldo County gardeners in Zone 5a 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.
