Somerset County, ME — Planting Guide
What to do in June
Welcome to June in Zone 5a. These are the moves that will have the biggest impact on your growing season.
-
Time to transplant basil, cucumber, and peppers
Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.
-
Put celosia, columbine, and echinacea (purple coneflower) seeds straight in the ground
Your soil is 66°F — warm enough for these to germinate without babying.
-
Time to start cucumber, kale, and lettuce inside
Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.
-
Basket week: lettuce, radish, and arugula
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
July prep starts now
- Starting indoors: basil, peppers, and pole beans
- First harvests: basil, carrots, and cucumber
- Fall sowing: carrots, kale, and lettuce
Somerset County is in USDA Zone 5a. The average last spring frost is May 22 and the first fall frost is September 26, giving you a growing season of approximately 127 days.
At an elevation of 356 ft, Somerset County receives approximately 48.8 in of rainfall annually. Summer highs average 80°F with winter lows around 3°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 May 11 in warm years to June 3 in cold years. The growing season is trending longer by about 2.88 days per decade. Somerset County scores 57/100 (Moderate) on the Microclimate Index.
🌡️ Zone
5a (-20°F to -15°F min)
❄️ Last Frost
May 22
🍂 First Frost
September 26
📅 Growing Season
127 days
⛰️ Elevation
356 ft
🌧️ Annual Rainfall
48.8 in
Monthly Watering Calendar for Somerset County
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
Why it matters: Most vegetables want about 1 inch of water per week. Somerset County gets 49" 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 | 2.9 in | 10 days | — | None |
| Feb | 3.2 in | 9 days | — | None |
| Mar | 4.5 in | 11 days | — | None |
| Apr | 4.6 in | 9 days | — | Low |
| May | 4.2 in | 12 days | 0.1 in | Low |
| Jun | 5 in | 12 days | — | Low |
| Jul | 4 in | 10 days | 0.3 in | Low |
| Aug | 4.6 in | 8 days | — | Low |
| Sep | 4 in | 8 days | 0.3 in | Low |
| Oct | 4.2 in | 10 days | 0.1 in | Low |
| Nov | 3.8 in | 10 days | — | None |
| Dec | 3.9 in | 11 days | — | None |
Annual total: 48.9 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.
Somerset County Soil Profile
Soil Type
Silt Loam
Soil pH
4.8-6.4
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) | Jun 3 | Oct 11 | 130 days |
| Cautious | May 27 | Oct 2 | 128 days |
| Average year | May 22 | Sep 26 | 127 days |
| Optimistic | May 15 | Sep 19 | 127 days |
| Aggressive (risky) | May 11 | Sep 12 | 124 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 2.9 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Somerset County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Somerset 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 Somerset County's climate and soil.
County Extension Office
Somerset 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 Somerset County
Finding local nurseries & garden centers in Somerset County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Somerset 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 Somerset County ME" or "garden center Somerset 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 Somerset County ME" or check your extension office and local parks department. Facebook groups like "Somerset 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 5 more succession options
Sunlight & Day Length in Somerset County
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Why it matters: Photoperiod-sensitive crops will fail spectacularly if planted at the wrong latitude. Sweet onions in Michigan? Tiny. Spanish onions in Florida? Tiny. Match variety to Somerset County's daylight pattern and you'll see the difference.
Longest Day
15.5 hours
Summer solstice daylight
Shortest Day
8.5 hours
Winter solstice daylight
Peak Sun Hours
9.2 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 | 8.9 hr | 3.2 hr | Short day |
| February | 10.1 hr | 4.1 hr | Short day |
| March | 11.6 hr | 5.2 hr | Short day |
| April | 13.3 hr | 6.2 hr | Neutral |
| May | 14.7 hr | 8 hr | Long day |
| June | 15.5 hr | 8.6 hr | Long day |
| July | 15.2 hr | 9.2 hr | Long day |
| August | 13.9 hr | 7.3 hr | Neutral |
| September | 12.3 hr | 6.4 hr | Neutral |
| October | 10.7 hr | 5.2 hr | Short day |
| November | 9.2 hr | 3.7 hr | Short day |
| December | 8.5 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 in Somerset County
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
For new gardeners: Most root crops germinate well at 50-60°F. Most fruit-bearing crops want 65-75°F. Somerset County's monthly soil curve maps these windows to actual months.
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 | 13°F | 23°F | ❄️ Dormant | ~36 weeks |
| Feb | 17°F | 22°F | ❄️ Dormant | ~36 weeks |
| Mar | 28°F | 29°F | ❄️ Dormant | ~36 weeks |
| Apr | 43°F | 38°F | 🐢 Slow | ~24 weeks |
| May | 54°F | 51°F | ♻️ Active | ~14 weeks |
| Jun | 67°F | 61°F | 🔥 Peak | ~8 weeks |
| Jul | 70°F | 67°F | 🔥 Peak | ~8 weeks |
| Aug | 75°F | 67°F | 🔥 Peak | ~8 weeks |
| Sep | 66°F | 63°F | 🔥 Peak | ~8 weeks |
| Oct | 54°F | 56°F | ♻️ Active | ~14 weeks |
| Nov | 38°F | 43°F | ❄️ Dormant | ~36 weeks |
| Dec | 24°F | 32°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 Somerset County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Quick context: Pest and disease pressure is the X-factor most beginners under-plan for. Somerset County's climate determines whether you can mostly "plant and see" or whether you need a pest-management routine from the first seedling.
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 |
| Cabbage worms | Low | Jun, Jul, Aug |
| Colorado potato beetle | Moderate | Jun, Jul |
| Flea beetles | Moderate | May, Jun, Jul |
| Slugs | Moderate | May, Jun, Jul, Aug, Sep |
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 Somerset County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
What this means for you: Why not just leave bare soil? Weed seeds, erosion, nutrient leaching, and crust formation. A cover crop solves all of these for the cost of seeds and one mowing.
Spring Cover Crops (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Jun 1 | Aug 1 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | Apr 27 | Jul 25 | ✓ 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 2 | Aug 29 | — | 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 12 | May 1 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 7 | May 1 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 15 | May 8 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jun 24 | May 1 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jun 19 | May 1 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Somerset County
Why this matters: New gardeners under-plan for wind. Somerset County averages 10.6 mph — fine for most days. But every region has its windy days, and the first time a row of unstaked peppers leans over after a storm is a lesson you only need once.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 14 mph Summer: 11 mph
Fall: 11 mph Winter: 15 mph
Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.
Windbreak Benefit
7.4/10
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 (287 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Somerset County
How much water you can collect, when to collect it, and what size system you need for your garden.
Why this matters: Building a rainwater system is mostly about doing the math: roof area × annual rainfall × 0.6 = gallons you could realistically capture. For Somerset County, that's your 49" times your roof.
Annual Collection
24,371 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, Jun, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Feb, Nov
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 48.9 inches of rain per year
- A 1,000 sq ft roof can collect roughly 24,371 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jan, Feb, Nov)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Somerset County
Soil Type
Silt Loam
Soil pH 4.8–6.4 · Somewhat Poorly Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
Watering Needs
Drought stress: 1.5/10
Somerset County has very low drought pressure. Natural rainfall usually meets garden needs — water only during extended dry spells.
Season Tips
127-day frost-free season
A short season means indoor starts are critical for warm-season crops. Prioritise cold-hardy, fast-maturing varieties and use row covers to extend autumn harvests.
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 Somerset County
105 vegetables that grow well in Zone 5a with planting dates for Somerset County.
Show all 105 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Apr 17 | May 29 | Jun 5 | — | Aug 28 – Oct 2 | 80–100 |
| Amaranth | Mar 27 | May 29 | Jun 5 | — | Sep 4 – Oct 23 | 90–120 |
| Arugula | Apr 17 | May 8 | May 22 | Jul 18 | Jun 26 – Aug 28 | 30–50 |
| Asparagus | — | — | Jun 5 | — | — | 730–1095 |
| Beets | — | May 8 | — | Jul 18 | Jul 3 – Jul 31 | 50–70 |
| Belgian Endive | Apr 17 | May 8 | May 22 | Jul 18 | Sep 11 – Nov 6 | 110–150 |
| Bitter Melon | Mar 27 | May 29 | Jun 5 | — | Aug 7 – Sep 18 | 60–90 |
| Black Beans | — | May 29 | — | — | Aug 28 – Oct 16 | 90–120 |
| Bok Choy | Apr 17 | May 8 | May 22 | Jul 18 | Jul 3 – Aug 7 | 40–60 |
| Broccoli | Apr 17 | May 8 | May 22 | Jul 18 | Jul 24 – Sep 4 | 60–90 |
| Broccoli Rabe | Apr 17 | May 8 | May 22 | Jul 18 | Jul 3 – Aug 7 | 40–60 |
| Brussels Sprouts | Apr 17 | May 8 | May 22 | Jul 18 | Aug 21 – Oct 16 | 90–130 |
| Butternut Squash | Apr 17 | May 29 | Jun 5 | — | Sep 4 – Oct 9 | 85–110 |
| Cabbage | Apr 17 | May 8 | May 22 | Jul 18 | Jul 24 – Sep 18 | 60–100 |
| Calabash | Mar 27 | May 29 | Jun 5 | — | Aug 28 – Oct 23 | 80–120 |
| Carrots | — | May 8 | — | Jul 18 | Jul 10 – Aug 14 | 60–80 |
| Cauliflower | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Sep 18 | 55–100 |
| Celeriac | Apr 17 | May 8 | May 22 | Jul 18 | Sep 4 – Oct 9 | 100–120 |
| Celery | Apr 17 | May 8 | May 22 | Jul 18 | Aug 14 – Oct 9 | 80–120 |
| Celtuce | Apr 17 | May 8 | May 22 | Jul 18 | Jul 24 – Sep 4 | 60–90 |
| Chard | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Sep 4 | 50–60 |
| Chickpeas | Apr 17 | May 8 | May 22 | Jul 18 | Aug 14 – Sep 25 | 80–110 |
| Chicory | Apr 17 | May 8 | May 22 | Jul 18 | Jul 24 – Sep 4 | 60–85 |
| Chinese Cabbage | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Aug 14 | 50–70 |
| Christmas Lima Beans | Mar 27 | May 29 | Jun 5 | — | Aug 28 – Oct 2 | 80–100 |
| Collard Greens | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Sep 18 | 55–75 |
| Corn | — | May 29 | — | — | Jul 31 – Sep 25 | 60–100 |
| Cowpeas | — | May 29 | — | — | Jul 31 – Sep 11 | 60–90 |
| Cress | Apr 17 | May 8 | May 22 | Jul 18 | Jun 5 – Jun 26 | 14–21 |
| Crookneck Squash | Apr 17 | May 29 | Jun 5 | — | Jul 24 – Aug 21 | 45–60 |
| Crosne | — | May 8 | — | Jul 18 | Oct 9 – Oct 23 | 150–200 |
| Cucumber | Apr 17 | May 29 | Jun 5 | — | Jul 31 – Sep 25 | 50–70 |
| Daikon | — | May 8 | — | Jul 18 | Jul 3 – Jul 31 | 50–70 |
| Delicata Squash | Apr 17 | May 29 | Jun 5 | — | Aug 28 – Oct 2 | 80–100 |
| Edamame | — | May 29 | — | — | Aug 14 – Sep 25 | 75–100 |
| Eggplant | Mar 13 | May 29 | Jun 5 | — | Aug 14 – Oct 16 | 65–85 |
| Endive | Apr 17 | May 8 | May 22 | Jul 18 | Jul 10 – Aug 14 | 45–65 |
| Escarole | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Aug 14 | 50–70 |
| Fava Beans | Apr 17 | May 8 | May 22 | Jul 18 | Aug 7 – Sep 18 | 75–100 |
| Fennel | Mar 27 | May 29 | Jun 5 | — | Aug 7 – Sep 18 | 60–90 |
| Garlic | — | — | — | Aug 15 | Nov 14 – Jan 30 | 90–240 |
| Green Beans | — | May 29 | — | — | Jul 24 – Sep 18 | 50–65 |
| Horseradish | — | — | Jun 5 | — | Oct 9 – Nov 20 | 120–180 |
| Hot Peppers | Mar 13 | May 29 | Jun 5 | — | Aug 14 – Nov 20 | 70–120 |
| Hubbard Squash | Apr 17 | May 29 | Jun 5 | — | Sep 18 – Oct 23 | 100–120 |
| Kabocha | Apr 17 | May 29 | Jun 5 | — | Sep 4 – Oct 2 | 85–100 |
| Kai Lan | Apr 17 | May 8 | May 22 | Jul 18 | Jul 10 – Aug 7 | 45–60 |
| Kale | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Sep 11 | 50–70 |
| Kidney Beans | — | May 29 | — | — | Aug 28 – Oct 2 | 85–110 |
| Kohlrabi | Apr 17 | May 8 | May 22 | Jul 18 | Jul 10 – Aug 14 | 45–65 |
| Komatsuna | Apr 17 | May 8 | May 22 | Jul 18 | Jun 26 – Jul 31 | 35–50 |
| Leeks | Apr 17 | May 8 | May 22 | Jul 18 | Aug 21 – Nov 6 | 90–150 |
| Lentils | Apr 17 | May 8 | May 22 | Jul 18 | Aug 14 – Sep 25 | 80–110 |
| Lettuce | Apr 17 | May 8 | May 22 | Jul 18 | Jun 26 – Sep 4 | 30–60 |
| Lima Beans | — | May 29 | — | — | Jul 31 – Sep 11 | 60–90 |
| Mache | Apr 17 | May 8 | May 22 | Jul 18 | Jul 3 – Aug 7 | 40–60 |
| Melon | Apr 17 | May 29 | Jun 5 | — | Aug 14 – Oct 2 | 70–100 |
| Microgreens | Apr 17 | May 8 | May 22 | Jul 18 | May 29 – Jun 26 | 7–21 |
| Mitsuba | Apr 17 | May 8 | May 15 | Jul 18 | Jul 10 – Sep 4 | 50–70 |
| Mizuna | Apr 17 | May 8 | May 22 | Jul 18 | Jun 26 – Jul 24 | 30–45 |
| Mustard Greens | Apr 17 | May 8 | May 22 | Jul 18 | Jun 26 – Aug 28 | 30–50 |
| Napa Cabbage | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Aug 21 | 55–75 |
| New Zealand Spinach | Mar 27 | May 29 | Jun 5 | — | Jul 31 – Aug 28 | 55–70 |
| Okra | Mar 27 | May 29 | Jun 5 | — | Jul 31 – Sep 25 | 50–65 |
| Onion | Apr 17 | May 8 | May 22 | Jul 18 | Aug 21 – Oct 9 | 90–120 |
| Pac Choi | Apr 17 | May 8 | May 22 | Jul 18 | Jul 3 – Jul 31 | 40–55 |
| Parsnip | — | May 8 | — | Jul 18 | Aug 21 – Oct 2 | 100–130 |
| Patty Pan Squash | Apr 17 | May 29 | Jun 5 | — | Jul 24 – Aug 21 | 45–60 |
| Peas | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Sep 11 | 55–70 |
| Peppers | Mar 13 | May 29 | Jun 5 | — | Aug 7 – Oct 16 | 60–90 |
| Pole Beans | Mar 27 | May 29 | Jun 5 | — | Jul 31 – Sep 25 | 55–70 |
| Potatoes | Mar 27 | May 29 | Jun 5 | — | Aug 14 – Oct 23 | 70–120 |
| Pumpkin | Apr 17 | May 29 | Jun 5 | — | Sep 4 – Oct 23 | 85–120 |
| Purslane | Apr 17 | May 8 | May 22 | Jul 18 | Jul 3 – Aug 7 | 40–60 |
| Radicchio | Apr 17 | May 8 | May 22 | Jul 18 | Jul 24 – Aug 28 | 60–80 |
| Radish | — | May 8 | — | Jul 18 | Jun 5 – Jun 26 | 22–35 |
| Rhubarb | — | — | Jun 12 | — | — | 365–730 |
| Romanesco | Apr 17 | May 8 | May 22 | Jul 18 | Aug 7 – Sep 18 | 75–100 |
| Rutabaga | — | May 8 | — | Jul 18 | Jul 31 – Sep 4 | 80–100 |
| Salsify | — | May 8 | — | Jul 18 | Aug 21 – Oct 2 | 100–130 |
| Savoy Cabbage | Apr 17 | May 8 | May 22 | Jul 18 | Jul 31 – Sep 25 | 70–110 |
| Scallions | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Aug 14 | 50–70 |
| Scarlet Runner Beans | Mar 27 | May 29 | Jun 5 | — | Aug 7 – Sep 11 | 60–80 |
| Shallot | Apr 17 | May 8 | May 22 | Jul 18 | Aug 21 – Oct 9 | 90–120 |
| Shiso | Apr 3 | May 29 | Jun 5 | — | Jul 31 – Sep 25 | 50–70 |
| Snap Peas | Mar 27 | May 29 | Jun 5 | — | Jul 31 – Sep 25 | 55–70 |
| Snow Peas | Apr 17 | May 8 | May 22 | Jul 18 | Jul 17 – Sep 11 | 50–65 |
| Soybeans | — | May 29 | — | — | Aug 21 – Oct 16 | 80–120 |
| Spaghetti Squash | Apr 17 | May 29 | Jun 5 | — | Sep 4 – Oct 2 | 85–100 |
| Spinach | Apr 17 | May 8 | May 22 | Jul 18 | Jun 26 – Aug 28 | 35–50 |
| Squash (Summer) | Apr 17 | May 29 | Jun 5 | — | Jul 24 – Sep 25 | 45–65 |
| Squash (Winter) | Apr 17 | May 29 | Jun 5 | — | Aug 28 – Oct 23 | 80–120 |
| Sunchoke | — | — | Jun 5 | — | Sep 25 – Nov 20 | 110–150 |
| Sweet Corn | — | May 29 | — | — | Jul 31 – Sep 11 | 60–90 |
| Sweet Potatoes | Mar 27 | May 29 | Jun 5 | — | Sep 4 – Oct 23 | 90–120 |
| Tatsoi | Apr 17 | May 8 | May 22 | Jul 18 | Jun 26 – Jul 31 | 35–50 |
| Tomatillo | Mar 27 | May 29 | Jun 5 | — | Aug 7 – Oct 16 | 60–85 |
| Tomatoes | Mar 27 | May 29 | Jun 5 | — | Aug 7 – Oct 16 | 60–85 |
| Turnip | — | May 8 | — | Jul 18 | Jun 19 – Jul 24 | 40–60 |
| Watercress | Apr 17 | May 8 | May 22 | Jul 18 | Jul 3 – Aug 7 | 40–60 |
| Watermelon | Apr 17 | May 29 | Jun 5 | — | Aug 14 – Oct 2 | 70–100 |
| Wax Beans | — | May 29 | — | — | Jul 24 – Sep 18 | 50–65 |
| Winter Melon | Mar 27 | May 29 | Jun 5 | — | Sep 4 – Oct 23 | 90–120 |
| Yard Long Beans | Mar 27 | May 29 | Jun 5 | — | Jul 31 – Sep 11 | 55–80 |
| Zucchini | Apr 17 | May 29 | Jun 5 | — | Jul 24 – Sep 18 | 45–60 |
🍓 Fruits to Grow in Somerset County
27 fruits that grow well in Zone 5a with planting dates for Somerset County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 12 | — | Sep 11 – Nov 27 | 90–180 |
| Aronia | — | — | Jun 12 | — | — | 730–1095 |
| Blackberries | — | — | Jun 12 | — | — | 365–730 |
| Blueberries | — | — | Jun 12 | — | — | 730–1095 |
| Boysenberries | — | — | Jun 12 | — | — | 365–730 |
| Cantaloupe | — | — | Jun 12 | — | Aug 21 – Sep 25 | 70–90 |
| Che Fruit | — | — | Jun 12 | — | — | 1095–1825 |
| Cranberries | — | — | Jun 12 | — | — | 730–1095 |
| Currants | — | — | Jun 12 | — | — | 730–1095 |
| Elderberries | — | — | Jun 12 | — | — | 730–1095 |
| Goji Berries | — | — | Jun 12 | — | — | 730–1095 |
| Gooseberries | — | — | Jun 12 | — | — | 730–1095 |
| Grapes | — | — | Jun 12 | — | — | 730–1095 |
| Ground Cherry | — | — | Jun 12 | — | Aug 21 – Oct 16 | 65–80 |
| Hardy Kiwi | — | — | Jun 12 | — | — | 1095–1825 |
| Haskaps | — | — | Jun 12 | — | — | 730–1095 |
| Honeydew | — | — | Jun 12 | — | Sep 4 – Oct 16 | 80–110 |
| Jostaberry | — | — | Jun 12 | — | — | 730–1095 |
| Lingonberries | — | — | Jun 12 | — | — | 730–1095 |
| Medlar | — | — | Jun 12 | — | — | 1095–1825 |
| Mulberries | — | — | Jun 12 | — | — | 730–1825 |
| Pawpaw | — | — | Jun 12 | — | — | 1095–2555 |
| Persimmon | — | — | Jun 12 | — | — | 1095–2555 |
| Quince | — | — | Jun 12 | — | — | 1095–1825 |
| Raspberries | — | — | Jun 12 | — | — | 365–730 |
| Serviceberries | — | — | Jun 12 | — | — | 730–1095 |
| Strawberries | — | — | Jun 12 | — | Sep 11 – Nov 27 | 90–365 |
🌿 Herbs to Grow in Somerset County
34 herbs that grow well in Zone 5a with planting dates for Somerset County.
Show all 34 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Apr 17 | May 8 | May 15 | Jul 18 | — | 365–730 |
| Anise | Apr 17 | May 8 | May 15 | Jul 18 | Aug 14 – Oct 30 | 90–120 |
| Basil | Apr 3 | May 29 | Jun 5 | — | Jul 31 – Oct 2 | 50–75 |
| Bee Balm | — | — | May 29 | — | Aug 28 – Nov 13 | 90–120 |
| Borage | Apr 17 | May 8 | May 15 | Jul 18 | Jul 10 – Aug 28 | 50–60 |
| Caraway | Apr 17 | May 8 | May 15 | Jul 18 | — | 365–450 |
| Catnip | — | — | May 29 | — | Jul 31 – Oct 2 | 60–80 |
| Chamomile | Apr 17 | May 8 | May 15 | Jul 18 | Jul 17 – Sep 25 | 60–90 |
| Chervil | Apr 17 | May 8 | May 15 | Jul 18 | Jun 26 – Aug 28 | 40–60 |
| Chives | — | — | May 29 | — | Jul 31 – Oct 9 | 60–90 |
| Cilantro | Apr 17 | May 8 | May 15 | Jul 18 | Jun 26 – Aug 28 | 40–60 |
| Comfrey | — | — | May 29 | — | Jul 31 – Oct 9 | 60–90 |
| Cumin | Apr 17 | May 8 | May 15 | Jul 18 | Aug 28 – Oct 30 | 100–120 |
| Dill | Apr 17 | May 8 | May 15 | Jul 18 | Jun 26 – Aug 28 | 40–60 |
| Epazote | Apr 3 | May 29 | Jun 5 | — | Jul 24 – Sep 18 | 45–60 |
| Fennel (herb) | Apr 17 | May 8 | May 15 | Jul 18 | Jul 17 – Sep 25 | 60–90 |
| Feverfew | — | — | May 29 | — | Aug 28 – Nov 13 | 90–120 |
| Garlic Chives | — | — | May 29 | — | Jul 31 – Oct 9 | 60–90 |
| Horehound | — | — | May 29 | — | Aug 14 – Oct 9 | 75–90 |
| Hyssop | — | — | May 29 | — | Aug 7 – Oct 9 | 70–90 |
| Lemon Balm | — | — | May 29 | — | Jul 31 – Sep 18 | 60–70 |
| Lemon Thyme | — | — | May 29 | — | Aug 7 – Oct 9 | 70–90 |
| Lovage | — | — | May 29 | — | Aug 7 – Oct 9 | 70–90 |
| Mint | — | — | May 29 | — | Jul 31 – Oct 9 | 60–90 |
| Oregano | — | — | May 29 | — | Jul 31 – Oct 9 | 60–90 |
| Parsley | Apr 17 | May 8 | May 15 | Jul 18 | Jul 17 – Sep 18 | 60–80 |
| Rue | — | — | May 29 | — | Aug 7 – Oct 9 | 70–90 |
| Sage | — | — | May 29 | — | Aug 14 – Oct 9 | 75–90 |
| Savory | — | — | May 29 | — | Jul 24 – Sep 18 | 50–70 |
| Sorrel | Apr 17 | May 8 | May 15 | Jul 18 | Jun 26 – Aug 28 | 40–60 |
| Tarragon | — | — | May 29 | — | Jul 31 – Oct 9 | 60–90 |
| Thai Basil | Apr 3 | May 29 | Jun 5 | — | Jul 31 – Oct 2 | 50–75 |
| Thyme | — | — | May 29 | — | Aug 7 – Oct 9 | 70–90 |
| Valerian | — | — | May 29 | — | Oct 2 – Nov 13 | 120–180 |
🌸 Flowers to Grow in Somerset County
51 flowers that grow well in Zone 5a with planting dates for Somerset County.
Show all 51 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Apr 3 | May 29 | May 29 | — | Jul 24 – Oct 16 | 60–75 |
| Alliums | — | — | — | Aug 15 | Sep 19 – Oct 17 | 28–42 |
| Anemones | Apr 24 | — | May 22 | — | Jul 3 – Jul 31 | 90–120 |
| Astilbe | Mar 20 | — | Jun 5 | — | Aug 21 – Oct 23 | 70–100 |
| Bachelor's Button | Apr 10 | May 1 | May 22 | — | Jul 24 – Oct 2 | 60–90 |
| Begonias | Mar 13 | — | May 29 | — | Aug 7 – Oct 30 | 70–90 |
| Black-eyed Susan | Mar 20 | May 22 | Jun 5 | — | Aug 21 – Nov 20 | 60–80 |
| Bleeding Hearts | Mar 20 | — | Jun 5 | — | Jul 31 – Sep 11 | 60–90 |
| Calendula | Apr 10 | May 1 | May 22 | — | Jul 10 – Oct 2 | 50–70 |
| Celosia | Apr 17 | Jun 5 | Jun 5 | — | Aug 7 – Nov 6 | 60–90 |
| Columbine | Mar 20 | Jun 5 | Jun 5 | — | Jul 31 – Sep 11 | 70–100 |
| Coreopsis | Mar 20 | May 29 | Jun 5 | — | Aug 14 – Nov 20 | 60–80 |
| Cosmos | Apr 24 | May 29 | May 29 | — | Aug 7 – Oct 30 | 60–90 |
| Crocus | — | — | — | Aug 15 | Jun 27 – Jul 18 | 10–20 |
| Daffodils | — | — | — | Aug 15 | Jul 4 – Jul 25 | 20–40 |
| Dahlias | Apr 24 | May 29 | May 29 | — | Aug 21 – Nov 13 | 70–120 |
| Daylily | Mar 20 | — | Jun 5 | — | Aug 28 – Nov 20 | 60–90 |
| Dianthus | Mar 20 | Apr 24 | May 8 | — | Jun 26 – Sep 11 | 60–80 |
| Echinacea (Purple Coneflower) | Mar 20 | Jun 5 | Jun 5 | — | Aug 28 – Nov 20 | 70–90 |
| Foxglove | Mar 20 | Jun 5 | Jun 5 | — | Jul 31 – Sep 11 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 27 | Jun 5 | Jun 5 | — | Aug 14 – Dec 4 | 70–100 |
| Geraniums | Mar 13 | — | May 29 | — | Aug 7 – Oct 30 | 70–100 |
| Gladiolus | — | May 29 | May 29 | — | Aug 21 – Nov 13 | 70–100 |
| Hostas | Mar 13 | — | Jun 5 | — | Aug 28 – Nov 20 | 60–90 |
| Hyacinths | — | — | — | Aug 15 | Jul 25 – Aug 22 | 14–28 |
| Hydrangeas | Mar 13 | — | Jun 5 | — | Aug 21 – Nov 6 | 90–150 |
| Impatiens | Mar 27 | — | May 29 | — | Aug 7 – Oct 30 | 60–75 |
| Irises | — | Division | Jun 5 | — | Jul 31 – Sep 4 | 60–100 |
| Larkspur | — | Apr 24 | — | — | Jul 3 – Aug 28 | 60–90 |
| Lavender | Mar 13 | — | Jun 12 | — | Aug 21 – Oct 2 | 90–120 |
| Lilies | — | Division | Jun 5 | — | Aug 14 – Nov 6 | 70–120 |
| Lobelia | Mar 13 | — | May 15 | — | Jul 10 – Sep 18 | 70–80 |
| Lupine | Mar 20 | Jun 5 | Jun 5 | — | Jul 31 – Sep 11 | 75–100 |
| Marigolds | Apr 10 | May 29 | May 29 | — | Jul 24 – Oct 16 | 50–70 |
| Nasturtium | Apr 24 | May 29 | May 29 | — | Jul 24 – Oct 30 | 55–65 |
| Pansy | Mar 13 | — | May 22 | — | Jul 17 – Sep 11 | 70–90 |
| Peonies | — | Division | Jun 5 | — | Aug 14 – Sep 25 | 90–120 |
| Petunia | Mar 27 | — | May 29 | — | Aug 7 – Oct 30 | 70–90 |
| Phlox | Mar 20 | Jun 5 | Jun 5 | — | Aug 21 – Nov 6 | 80–110 |
| Portulaca | Apr 17 | Jun 5 | Jun 5 | — | Jul 24 – Oct 23 | 50–70 |
| Roses | Mar 13 | — | Jun 5 | — | Aug 21 – Nov 20 | 90–180 |
| Salvia | Mar 20 | — | May 29 | — | Aug 7 – Oct 30 | 70–90 |
| Sedum (Stonecrop) | Mar 20 | — | Jun 5 | — | Oct 2 – Dec 4 | 60–90 |
| Snapdragon | Mar 13 | May 8 | May 22 | — | Jul 31 – Oct 2 | 70–100 |
| Sunflower | May 1 | May 29 | May 29 | — | Aug 21 – Oct 30 | 70–100 |
| Sweet Alyssum | Apr 3 | May 8 | May 22 | — | Jul 3 – Sep 11 | 45–60 |
| Sweet Pea | Apr 10 | Apr 17 | May 22 | — | Aug 7 – Oct 9 | 65–85 |
| Tulips | — | — | — | Aug 15 | Jul 18 – Aug 8 | 15–30 |
| Vinca (Annual) | Mar 6 | — | Jun 5 | — | Aug 14 – Oct 30 | 70–90 |
| Yarrow | Mar 20 | May 22 | Jun 5 | — | Aug 14 – Nov 20 | 60–90 |
| Zinnia | Apr 24 | May 29 | May 29 | — | Aug 7 – Oct 30 | 60–70 |
Monthly Planting Guide for Somerset County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Somerset County.
Frequently Asked Questions
What planting zone is Somerset County, ME?
Somerset 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 Somerset County, ME?
Based on 31 years of NOAA weather station data, the median last spring frost in Somerset County falls around May 22. In 8 out of 10 years, last frost lands between May 11 and June 3 — a 23-day window of variability. Use June 3 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Somerset County, ME?
The median first fall frost in Somerset County arrives around September 26. In cold years it can arrive as early as September 12; in mild years as late as October 11. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Somerset County?
Somerset County has a frost-free growing season of approximately 127 days. Focus on short-season varieties and start warm-season crops indoors 6–8 weeks before last frost. Climate records show the growing season is trending longer by about 2.88 days per decade.
What is the soil like in Somerset County for gardening?
Somerset County has predominantly Silt Loam soil with a pH range of 4.8–6.4 and Somewhat Poorly Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Somerset County?
Somerset County has commercial agriculture that includes Hay, Dairy, Corn. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Somerset County a good location for home gardening?
Somerset County scores 57/100 (Moderate) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Conditions here are moderate — most common crops grow well with standard timing and care.
Your Somerset County Garden Planner — Free
A 22-page printable planner built for Somerset County (Zone 5a). 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