Somerset County, PA — Planting Guide
Somerset County is in USDA Zone 5b. The average last spring frost is May 6 and the first fall frost is October 12, giving you a growing season of approximately 159 days.
At an elevation of 60 ft, Somerset County receives approximately 41.1 in of rainfall annually. Summer highs average 84°F with winter lows around 15°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 37 days year to year — ranging from April 15 in warm years to May 22 in cold years. The growing season is trending longer by about 2.33 days per decade. Somerset County scores 60/100 (Good) on the Microclimate Index.
🌡️ Zone
5b (-15°F to -10°F min)
❄️ Last Frost
May 6
🍂 First Frost
October 12
📅 Growing Season
159 days
⛰️ Elevation
60 ft
🌧️ Annual Rainfall
41.1 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 | 9 days | — | None |
| Feb | 2.8 in | 8 days | — | None |
| Mar | 3.8 in | 11 days | — | None |
| Apr | 3.1 in | 9 days | 1.2 in | Moderate |
| May | 3.2 in | 11 days | 1.1 in | Moderate |
| Jun | 4.1 in | 11 days | 0.2 in | Low |
| Jul | 4.5 in | 9 days | — | Low |
| Aug | 3.3 in | 11 days | 1 in | Moderate |
| Sep | 3.7 in | 9 days | 0.6 in | Moderate |
| Oct | 3.7 in | 8 days | 0.6 in | Moderate |
| Nov | 3 in | 8 days | — | None |
| Dec | 2.7 in | 11 days | — | None |
Annual total: 41 in. Gardens typically need ~1 inch of water per week during the growing season. Months marked "None" for extra water are outside the active growing season for your zone — most gardens are dormant and don't need irrigation during those months.
Somerset County Soil Profile
Soil Type
Silt Loam
Soil pH
5.1-6.2
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 22 | Oct 23 | 154 days |
| Cautious | May 12 | Oct 18 | 159 days |
| Average year | May 6 | Oct 12 | 159 days |
| Optimistic | Apr 27 | Oct 7 | 163 days |
| Aggressive (risky) | Apr 15 | Sep 30 | 168 days |
Not very — frost dates can vary by ±37 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 2.3 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Somerset County offers good growing conditions. A little planning around frost dates goes a long way.
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 Penn State Extension Extension Office
Phone: 814-865-4028
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 PA" 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 PA" or check your extension office and local parks department. Facebook groups like "Somerset County Gardeners" or "Pennsylvania 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
14.8 hours
Summer solstice daylight
Shortest Day
9.2 hours
Winter solstice daylight
Peak Sun Hours
8.2 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 | 9.5 hr | 3.7 hr | Short day |
| February | 10.5 hr | 4.2 hr | Short day |
| March | 11.7 hr | 5.3 hr | Short day |
| April | 13.1 hr | 6 hr | Neutral |
| May | 14.2 hr | 7.7 hr | Long day |
| June | 14.8 hr | 8.2 hr | Long day |
| July | 14.6 hr | 8.2 hr | Long day |
| August | 13.6 hr | 7.1 hr | Neutral |
| September | 12.2 hr | 6.1 hr | Neutral |
| October | 10.9 hr | 5.1 hr | Short day |
| November | 9.7 hr | 3.8 hr | Short day |
| December | 9.2 hr | 3.3 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting 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 | 24°F | 30°F | ❄️ Dormant | ~36 weeks |
| Feb | 25°F | 29°F | ❄️ Dormant | ~36 weeks |
| Mar | 34°F | 35°F | ❄️ Dormant | ~36 weeks |
| Apr | 44°F | 43°F | 🐢 Slow | ~24 weeks |
| May | 57°F | 55°F | ♻️ Active | ~14 weeks |
| Jun | 71°F | 65°F | 🔥 Peak | ~8 weeks |
| Jul | 79°F | 71°F | 🔥 Peak | ~8 weeks |
| Aug | 77°F | 75°F | 🔥 Peak | ~8 weeks |
| Sep | 72°F | 70°F | 🔥 Peak | ~8 weeks |
| Oct | 59°F | 59°F | ♻️ Active | ~14 weeks |
| Nov | 43°F | 48°F | 🐢 Slow | ~24 weeks |
| Dec | 29°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 Somerset 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 | Moderate | Jul, Aug |
| Cabbage loopers | Low | 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 Somerset County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Fall Cover Crops (6 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 1 | Apr 22 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Sep 1 | Apr 15 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 29 | Apr 22 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 3 | Apr 15 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 15 | Apr 22 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 20 | Apr 15 | — | Erosion control, weed suppression, good biomass |
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 12 | Aug 17 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | May 14 | Aug 17 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Apr 11 | Aug 3 | ✓ 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 25 | Sep 28 | — | Deep roots break compaction, attract pollinators and beneficial insects |
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: 7 mph
Fall: 10 mph Winter: 11 mph
Prevailing wind: W. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
5.4/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (521 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
20,434 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, Jun, Jul, Sep
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Feb, Nov, 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 41.0 inches of rain per year
- A 1,000 sq ft roof can collect roughly 20,434 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Feb, Nov, Dec)
- 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 5.1–6.2 · Well Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
Watering Needs
Drought stress: 3.5/10
Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (41.1 in. annual rainfall)
Season Tips
159-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 Somerset County
106 vegetables that grow well in Zone 5b with planting dates for Somerset County.
Show all 106 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Apr 1 | May 13 | May 20 | Aug 12 – Sep 16 | 80–100 |
| Amaranth | Mar 11 | May 13 | May 20 | Aug 19 – Oct 7 | 90–120 |
| Arugula | Apr 1 | Apr 22 | May 6 | Jun 10 – Aug 12 | 30–50 |
| Asparagus | — | — | May 20 | — | 730–1095 |
| Beets | — | Apr 22 | — | Jun 17 – Jul 15 | 50–70 |
| Belgian Endive | Apr 1 | Apr 22 | May 6 | Aug 26 – Oct 21 | 110–150 |
| Bitter Melon | Mar 11 | May 13 | May 20 | Jul 22 – Sep 2 | 60–90 |
| Black Beans | — | May 13 | — | Aug 12 – Sep 30 | 90–120 |
| Bok Choy | Apr 1 | Apr 22 | May 6 | Jun 17 – Jul 22 | 40–60 |
| Broccoli | Apr 1 | Apr 22 | May 6 | Jul 8 – Aug 19 | 60–90 |
| Broccoli Rabe | Apr 1 | Apr 22 | May 6 | Jun 17 – Jul 22 | 40–60 |
| Brussels Sprouts | Apr 1 | Apr 22 | May 6 | Aug 5 – Sep 30 | 90–130 |
| Butternut Squash | Apr 1 | May 13 | May 20 | Aug 19 – Sep 23 | 85–110 |
| Cabbage | Apr 1 | Apr 22 | May 6 | Jul 8 – Sep 2 | 60–100 |
| Calabash | Mar 11 | May 13 | May 20 | Aug 12 – Oct 7 | 80–120 |
| Carrots | — | Apr 22 | — | Jun 24 – Jul 29 | 60–80 |
| Cauliflower | Apr 1 | Apr 22 | May 6 | Jul 1 – Sep 2 | 55–100 |
| Celeriac | Apr 1 | Apr 22 | May 6 | Aug 19 – Sep 23 | 100–120 |
| Celery | Apr 1 | Apr 22 | May 6 | Jul 29 – Sep 23 | 80–120 |
| Celtuce | Apr 1 | Apr 22 | May 6 | Jul 8 – Aug 19 | 60–90 |
| Chard | Apr 1 | Apr 22 | May 6 | Jul 1 – Aug 19 | 50–60 |
| Chickpeas | Apr 1 | Apr 22 | May 6 | Jul 29 – Sep 9 | 80–110 |
| Chicory | Apr 1 | Apr 22 | May 6 | Jul 8 – Aug 19 | 60–85 |
| Chinese Cabbage | Apr 1 | Apr 22 | May 6 | Jul 1 – Jul 29 | 50–70 |
| Christmas Lima Beans | Mar 11 | May 13 | May 20 | Aug 12 – Sep 16 | 80–100 |
| Collard Greens | Apr 1 | Apr 22 | May 6 | Jul 1 – Sep 2 | 55–75 |
| Corn | — | May 13 | — | Jul 15 – Sep 9 | 60–100 |
| Cowpeas | — | May 13 | — | Jul 15 – Aug 26 | 60–90 |
| Cress | Apr 1 | Apr 22 | May 6 | May 20 – Jun 10 | 14–21 |
| Crookneck Squash | Apr 1 | May 13 | May 20 | Jul 8 – Aug 5 | 45–60 |
| Crosne | — | Apr 22 | — | Sep 23 – Oct 7 | 150–200 |
| Cucumber | Apr 1 | May 13 | May 20 | Jul 15 – Sep 9 | 50–70 |
| Daikon | — | Apr 22 | — | Jun 17 – Jul 15 | 50–70 |
| Delicata Squash | Apr 1 | May 13 | May 20 | Aug 12 – Sep 16 | 80–100 |
| Edamame | — | May 13 | — | Jul 29 – Sep 9 | 75–100 |
| Eggplant | Feb 25 | May 13 | May 20 | Jul 29 – Sep 30 | 65–85 |
| Endive | Apr 1 | Apr 22 | May 6 | Jun 24 – Jul 29 | 45–65 |
| Escarole | Apr 1 | Apr 22 | May 6 | Jul 1 – Jul 29 | 50–70 |
| Fava Beans | Apr 1 | Apr 22 | May 6 | Jul 22 – Sep 2 | 75–100 |
| Fennel | Mar 11 | May 13 | May 20 | Jul 22 – Sep 2 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | May 13 | — | Jul 8 – Sep 2 | 50–65 |
| Horseradish | — | — | May 20 | Sep 23 – Nov 4 | 120–180 |
| Hot Peppers | Feb 25 | May 13 | May 20 | Jul 29 – Nov 4 | 70–120 |
| Hubbard Squash | Apr 1 | May 13 | May 20 | Sep 2 – Oct 7 | 100–120 |
| Kabocha | Apr 1 | May 13 | May 20 | Aug 19 – Sep 16 | 85–100 |
| Kai Lan | Apr 1 | Apr 22 | May 6 | Jun 24 – Jul 22 | 45–60 |
| Kale | Apr 1 | Apr 22 | May 6 | Jul 1 – Aug 26 | 50–70 |
| Kidney Beans | — | May 13 | — | Aug 12 – Sep 16 | 85–110 |
| Kohlrabi | Apr 1 | Apr 22 | May 6 | Jun 24 – Jul 29 | 45–65 |
| Komatsuna | Apr 1 | Apr 22 | May 6 | Jun 10 – Jul 15 | 35–50 |
| Leeks | Apr 1 | Apr 22 | May 6 | Aug 5 – Oct 21 | 90–150 |
| Lentils | Apr 1 | Apr 22 | May 6 | Jul 29 – Sep 9 | 80–110 |
| Lettuce | Apr 1 | Apr 22 | May 6 | Jun 10 – Aug 19 | 30–60 |
| Lima Beans | — | May 13 | — | Jul 15 – Aug 26 | 60–90 |
| Mache | Apr 1 | Apr 22 | May 6 | Jun 17 – Jul 22 | 40–60 |
| Melon | Apr 1 | May 13 | May 20 | Jul 29 – Sep 16 | 70–100 |
| Microgreens | Apr 1 | Apr 22 | May 6 | May 13 – Jun 10 | 7–21 |
| Mitsuba | Apr 1 | Apr 22 | Apr 29 | Jun 24 – Aug 19 | 50–70 |
| Mizuna | Apr 1 | Apr 22 | May 6 | Jun 10 – Jul 8 | 30–45 |
| Mustard Greens | Apr 1 | Apr 22 | May 6 | Jun 10 – Aug 12 | 30–50 |
| Napa Cabbage | Apr 1 | Apr 22 | May 6 | Jul 1 – Aug 5 | 55–75 |
| New Zealand Spinach | Mar 11 | May 13 | May 20 | Jul 15 – Aug 12 | 55–70 |
| Okra | Mar 11 | May 13 | May 20 | Jul 15 – Sep 9 | 50–65 |
| Onion | Apr 1 | Apr 22 | May 6 | Aug 5 – Sep 23 | 90–120 |
| Pac Choi | Apr 1 | Apr 22 | May 6 | Jun 17 – Jul 15 | 40–55 |
| Parsnip | — | Apr 22 | — | Aug 5 – Sep 16 | 100–130 |
| Patty Pan Squash | Apr 1 | May 13 | May 20 | Jul 8 – Aug 5 | 45–60 |
| Peas | Apr 1 | Apr 22 | May 6 | Jul 1 – Aug 26 | 55–70 |
| Peppers | Feb 25 | May 13 | May 20 | Jul 22 – Sep 30 | 60–90 |
| Pole Beans | Mar 11 | May 13 | May 20 | Jul 15 – Sep 9 | 55–70 |
| Potatoes | Mar 11 | May 13 | May 20 | Jul 29 – Oct 7 | 70–120 |
| Pumpkin | Apr 1 | May 13 | May 20 | Aug 19 – Oct 7 | 85–120 |
| Purslane | Apr 1 | Apr 22 | May 6 | Jun 17 – Jul 22 | 40–60 |
| Radicchio | Apr 1 | Apr 22 | May 6 | Jul 8 – Aug 12 | 60–80 |
| Radish | — | Apr 22 | — | May 20 – Jun 10 | 22–35 |
| Rhubarb | — | — | May 27 | — | 365–730 |
| Romanesco | Apr 1 | Apr 22 | May 6 | Jul 22 – Sep 2 | 75–100 |
| Rutabaga | — | Apr 22 | — | Jul 15 – Aug 19 | 80–100 |
| Salsify | — | Apr 22 | — | Aug 5 – Sep 16 | 100–130 |
| Savoy Cabbage | Apr 1 | Apr 22 | May 6 | Jul 15 – Sep 9 | 70–110 |
| Scallions | Apr 1 | Apr 22 | May 6 | Jul 1 – Jul 29 | 50–70 |
| Scarlet Runner Beans | Mar 11 | May 13 | May 20 | Jul 22 – Aug 26 | 60–80 |
| Shallot | Apr 1 | Apr 22 | May 6 | Aug 5 – Sep 23 | 90–120 |
| Shiso | Mar 18 | May 13 | May 20 | Jul 15 – Sep 9 | 50–70 |
| Snap Peas | Mar 11 | May 13 | May 20 | Jul 15 – Sep 9 | 55–70 |
| Snow Peas | Apr 1 | Apr 22 | May 6 | Jul 1 – Aug 26 | 50–65 |
| Soybeans | — | May 13 | — | Aug 5 – Sep 30 | 80–120 |
| Spaghetti Squash | Apr 1 | May 13 | May 20 | Aug 19 – Sep 16 | 85–100 |
| Spinach | Apr 1 | Apr 22 | May 6 | Jun 10 – Aug 12 | 35–50 |
| Squash (Summer) | Apr 1 | May 13 | May 20 | Jul 8 – Sep 9 | 45–65 |
| Squash (Winter) | Apr 1 | May 13 | May 20 | Aug 12 – Oct 7 | 80–120 |
| Sunchoke | — | — | May 20 | Sep 9 – Nov 4 | 110–150 |
| Sunflower | Mar 11 | May 13 | May 20 | Jul 29 – Sep 16 | 70–100 |
| Sweet Corn | — | May 13 | — | Jul 15 – Aug 26 | 60–90 |
| Sweet Potatoes | Mar 11 | May 13 | May 20 | Aug 19 – Oct 7 | 90–120 |
| Tatsoi | Apr 1 | Apr 22 | May 6 | Jun 10 – Jul 15 | 35–50 |
| Tomatillo | Mar 11 | May 13 | May 20 | Jul 22 – Sep 30 | 60–85 |
| Tomatoes | Mar 11 | May 13 | May 20 | Jul 22 – Sep 30 | 60–85 |
| Turnip | — | Apr 22 | — | Jun 3 – Jul 8 | 40–60 |
| Watercress | Apr 1 | Apr 22 | May 6 | Jun 17 – Jul 22 | 40–60 |
| Watermelon | Apr 1 | May 13 | May 20 | Jul 29 – Sep 16 | 70–100 |
| Wax Beans | — | May 13 | — | Jul 8 – Sep 2 | 50–65 |
| Winter Melon | Mar 11 | May 13 | May 20 | Aug 19 – Oct 7 | 90–120 |
| Yard Long Beans | Mar 11 | May 13 | May 20 | Jul 15 – Aug 26 | 55–80 |
| Zucchini | Apr 1 | May 13 | May 20 | Jul 8 – Sep 2 | 45–60 |
🍓 Fruits to Grow in Somerset County
27 fruits that grow well in Zone 5b with planting dates for Somerset County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 27 | Aug 26 – Nov 11 | 90–180 |
| Aronia | — | — | May 27 | — | 730–1095 |
| Blackberries | — | — | May 27 | — | 365–730 |
| Blueberries | — | — | May 27 | — | 730–1095 |
| Boysenberries | — | — | May 27 | — | 365–730 |
| Cantaloupe | — | — | May 27 | Aug 5 – Sep 9 | 70–90 |
| Che Fruit | — | — | May 27 | — | 1095–1825 |
| Cranberries | — | — | May 27 | — | 730–1095 |
| Currants | — | — | May 27 | — | 730–1095 |
| Elderberries | — | — | May 27 | — | 730–1095 |
| Goji Berries | — | — | May 27 | — | 730–1095 |
| Gooseberries | — | — | May 27 | — | 730–1095 |
| Grapes | — | — | May 27 | — | 730–1095 |
| Ground Cherry | — | — | May 27 | Aug 5 – Sep 30 | 65–80 |
| Hardy Kiwi | — | — | May 27 | — | 1095–1825 |
| Haskaps | — | — | May 27 | — | 730–1095 |
| Honeydew | — | — | May 27 | Aug 19 – Sep 30 | 80–110 |
| Jostaberry | — | — | May 27 | — | 730–1095 |
| Lingonberries | — | — | May 27 | — | 730–1095 |
| Medlar | — | — | May 27 | — | 1095–1825 |
| Mulberries | — | — | May 27 | — | 730–1825 |
| Pawpaw | — | — | May 27 | — | 1095–2555 |
| Persimmon | — | — | May 27 | — | 1095–2555 |
| Quince | — | — | May 27 | — | 1095–1825 |
| Raspberries | — | — | May 27 | — | 365–730 |
| Serviceberries | — | — | May 27 | — | 730–1095 |
| Strawberries | — | — | May 27 | Aug 26 – Nov 11 | 90–365 |
🌿 Herbs to Grow in Somerset County
37 herbs that grow well in Zone 5b with planting dates for Somerset County.
Show all 37 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Apr 1 | Apr 22 | Apr 29 | — | 365–730 |
| Anise | Apr 1 | Apr 22 | Apr 29 | Jul 29 – Oct 14 | 90–120 |
| Basil | Mar 18 | May 13 | May 20 | Jul 15 – Sep 16 | 50–75 |
| Bee Balm | — | — | May 13 | Aug 12 – Oct 28 | 90–120 |
| Borage | Apr 1 | Apr 22 | Apr 29 | Jun 24 – Aug 12 | 50–60 |
| Caraway | Apr 1 | Apr 22 | Apr 29 | — | 365–450 |
| Catnip | — | — | May 13 | Jul 15 – Sep 16 | 60–80 |
| Chamomile | Apr 1 | Apr 22 | Apr 29 | Jul 1 – Sep 9 | 60–90 |
| Chervil | Apr 1 | Apr 22 | Apr 29 | Jun 10 – Aug 12 | 40–60 |
| Chives | — | — | May 13 | Jul 15 – Sep 23 | 60–90 |
| Cilantro | Apr 1 | Apr 22 | Apr 29 | Jun 10 – Aug 12 | 40–60 |
| Comfrey | — | — | May 13 | Jul 15 – Sep 23 | 60–90 |
| Cumin | Apr 1 | Apr 22 | Apr 29 | Aug 12 – Oct 14 | 100–120 |
| Dill | Apr 1 | Apr 22 | Apr 29 | Jun 10 – Aug 12 | 40–60 |
| Echinacea | — | — | May 13 | Sep 16 – Oct 28 | 120–180 |
| Epazote | Mar 18 | May 13 | May 20 | Jul 8 – Sep 2 | 45–60 |
| Fennel (herb) | Apr 1 | Apr 22 | Apr 29 | Jul 1 – Sep 9 | 60–90 |
| Feverfew | — | — | May 13 | Aug 12 – Oct 28 | 90–120 |
| Garlic Chives | — | — | May 13 | Jul 15 – Sep 23 | 60–90 |
| Horehound | — | — | May 13 | Jul 29 – Sep 23 | 75–90 |
| Hyssop | — | — | May 13 | Jul 22 – Sep 23 | 70–90 |
| Lavender | — | — | May 13 | Aug 12 – Oct 28 | 90–200 |
| Lemon Balm | — | — | May 13 | Jul 15 – Sep 2 | 60–70 |
| Lemon Thyme | — | — | May 13 | Jul 22 – Sep 23 | 70–90 |
| Lovage | — | — | May 13 | Jul 22 – Sep 23 | 70–90 |
| Mint | — | — | May 13 | Jul 15 – Sep 23 | 60–90 |
| Oregano | — | — | May 13 | Jul 15 – Sep 23 | 60–90 |
| Parsley | Apr 1 | Apr 22 | Apr 29 | Jul 1 – Sep 2 | 60–80 |
| Rue | — | — | May 13 | Jul 22 – Sep 23 | 70–90 |
| Sage | — | — | May 13 | Jul 29 – Sep 23 | 75–90 |
| Savory | — | — | May 13 | Jul 8 – Sep 2 | 50–70 |
| Sorrel | Apr 1 | Apr 22 | Apr 29 | Jun 10 – Aug 12 | 40–60 |
| Tarragon | — | — | May 13 | Jul 15 – Sep 23 | 60–90 |
| Thai Basil | Mar 18 | May 13 | May 20 | Jul 15 – Sep 16 | 50–75 |
| Thyme | — | — | May 13 | Jul 22 – Sep 23 | 70–90 |
| Valerian | — | — | May 13 | Sep 16 – Oct 28 | 120–180 |
| Yarrow | — | — | May 13 | Aug 12 – Oct 28 | 90–120 |
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, PA?
Somerset County is in USDA Hardiness Zone 5b. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.
When is the last frost in Somerset County, PA?
Based on 31 years of NOAA weather station data, the median last spring frost in Somerset County falls around May 6. In 8 out of 10 years, last frost lands between April 15 and May 22 — a 37-day window of variability. Use May 22 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Somerset County, PA?
The median first fall frost in Somerset County arrives around October 12. In cold years it can arrive as early as September 30; 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 Somerset County?
Somerset County has a frost-free growing season of approximately 159 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 2.33 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 5.1–6.2 and Well 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, Corn, Dairy, Apples, Sweet 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 60/100 (Good) 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.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Somerset County gardeners in Zone 5b 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.
