Posey County, IN — Planting Guide
Posey County is in USDA Zone 6b. The average last spring frost is April 8 and the first fall frost is October 28, giving you a growing season of approximately 203 days.
At an elevation of 596 ft, Posey County receives approximately 40.3 in of rainfall annually. Summer highs average 86°F with winter lows around 27°F. The predominant soil type is Silt Loam.
Based on 30 years of NOAA climate station data, the last frost date here varies by 30 days year to year — ranging from March 20 in warm years to April 20 in cold years. The growing season is trending shorter by about 0.78 days per decade. Posey County scores 69/100 (Good) on the Microclimate Index.
🌡️ Zone
6b (-5°F to 0°F min)
❄️ Last Frost
April 8
🍂 First Frost
October 28
📅 Growing Season
203 days
⛰️ Elevation
596 ft
🌧️ Annual Rainfall
40.3 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 | 1.8 in | 8 days | — | None |
| Feb | 1.9 in | 6 days | — | None |
| Mar | 2.7 in | 8 days | 1.6 in | High |
| Apr | 3.7 in | 9 days | 0.6 in | Moderate |
| May | 5.2 in | 9 days | — | Low |
| Jun | 4.7 in | 10 days | — | Low |
| Jul | 4.4 in | 8 days | — | Low |
| Aug | 4.4 in | 8 days | — | Low |
| Sep | 3 in | 6 days | 1.3 in | Moderate |
| Oct | 3.5 in | 8 days | 0.8 in | Moderate |
| Nov | 2.7 in | 8 days | — | None |
| Dec | 2.4 in | 8 days | — | None |
Annual total: 40.4 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.
Posey County Soil Profile
Soil Type
Silt Loam
Soil pH
6.2-7
Drainage
Well Drained
Frost Risk Probability
Based on 30 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) | Apr 20 | Nov 17 | 211 days |
| Cautious | Apr 13 | Nov 2 | 203 days |
| Average year | Apr 8 | Oct 28 | 203 days |
| Optimistic | Apr 2 | Oct 22 | 203 days |
| Aggressive (risky) | Mar 20 | Oct 10 | 204 days |
Not very — frost dates can vary by ±30 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Slightly — seasons are trending a bit shorter (0.8 days/decade). Stay conservative with planting dates.
Gardening Difficulty Score
Posey County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Posey 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 Posey County's climate and soil.
County Extension Office
Posey County Purdue University Extension Extension Office
Phone: 765-494-8491
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 Posey County
Finding local nurseries & garden centers in Posey County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Posey 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 Posey County IN" or "garden center Posey 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 Posey County IN" or check your extension office and local parks department. Facebook groups like "Posey County Gardeners" or "Indiana 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
14.6 hours
Summer solstice daylight
Shortest Day
9.4 hours
Winter solstice daylight
Peak Sun Hours
9.3 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 | 9.6 hr | 4 hr | Short day |
| February | 10.6 hr | 4.7 hr | Short day |
| March | 11.7 hr | 5.8 hr | Short day |
| April | 13 hr | 6.5 hr | Neutral |
| May | 14.1 hr | 8.1 hr | Long day |
| June | 14.6 hr | 9 hr | Long day |
| July | 14.4 hr | 9.3 hr | Long day |
| August | 13.5 hr | 8.3 hr | Neutral |
| September | 12.2 hr | 7.4 hr | Neutral |
| October | 11 hr | 5.5 hr | Short day |
| November | 9.9 hr | 3.9 hr | Short day |
| December | 9.4 hr | 3.6 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting Calendar
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from May through Oct.
Best Month to Compost
May
Microbial activity peaks when soil is warm.
Active Composting
7 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 | 33°F | 39°F | ❄️ Dormant | ~36 weeks |
| Feb | 33°F | 37°F | ❄️ Dormant | ~36 weeks |
| Mar | 40°F | 42°F | ❄️ Dormant | ~36 weeks |
| Apr | 51°F | 51°F | ♻️ Active | ~14 weeks |
| May | 65°F | 59°F | 🔥 Peak | ~8 weeks |
| Jun | 73°F | 70°F | 🔥 Peak | ~8 weeks |
| Jul | 82°F | 75°F | 🔥 Peak | ~8 weeks |
| Aug | 83°F | 77°F | 🔥 Peak | ~8 weeks |
| Sep | 74°F | 73°F | 🔥 Peak | ~8 weeks |
| Oct | 65°F | 66°F | 🔥 Peak | ~8 weeks |
| Nov | 49°F | 56°F | 🐢 Slow | ~24 weeks |
| Dec | 39°F | 46°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 Posey 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 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | High | Apr, May, Jun, Jul, Aug, Sep |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash vine borers | Moderate | Jun, Jul |
| Tomato hornworms | Moderate | Jun, Jul, Aug |
| Cucumber beetles | Low | May, Jun, Jul |
| Stink bugs | Low | 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 Posey 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 | Apr 12 | Sep 2 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | Apr 19 | Aug 26 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 10 | Aug 26 | ✓ 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 4 | Sep 30 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (7 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 24 | Mar 18 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Aug 22 | Mar 18 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Sep 4 | Mar 25 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 19 | Mar 18 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Oct 2 | Mar 25 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 26 | Mar 18 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 28 | Mar 25 | — | 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: 13 mph Summer: 9 mph
Fall: 11 mph Winter: 11 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
5/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Low
Relatively flat terrain (163 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
20,135 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 1,500 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
May, Jun, Jul, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Feb, 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 40.4 inches of rain per year
- A 1,000 sq ft roof can collect roughly 20,135 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 Posey County
Soil Type
Silt Loam
Soil pH 6.2–7 · Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 5.5/10
Moderate drought pressure. Drip irrigation and mulching are highly recommended to maintain soil moisture through summer.
Season Tips
203-day frost-free season
Plenty of time for warm-season crops. Start heat-lovers indoors 6–8 weeks before last frost to maximise your harvest window.
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 Posey County
108 vegetables that grow well in Zone 6b with planting dates for Posey County.
Show all 108 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Mar 4 | Apr 15 | Apr 22 | Jul 15 – Aug 19 | 80–100 |
| Amaranth | Feb 11 | Apr 15 | Apr 22 | Jul 22 – Sep 9 | 90–120 |
| Arugula | Mar 4 | Mar 25 | Apr 8 | May 13 – Jul 15 | 30–50 |
| Asparagus | — | — | Apr 22 | — | 730–1095 |
| Beets | — | Mar 25 | — | May 20 – Jun 17 | 50–70 |
| Belgian Endive | Mar 4 | Mar 25 | Apr 8 | Jul 29 – Sep 23 | 110–150 |
| Bitter Melon | Feb 11 | Apr 15 | Apr 22 | Jun 24 – Aug 5 | 60–90 |
| Black Beans | — | Apr 15 | — | Jul 15 – Sep 2 | 90–120 |
| Bok Choy | Mar 4 | Mar 25 | Apr 8 | May 20 – Jun 24 | 40–60 |
| Broccoli | Mar 4 | Mar 25 | Apr 8 | Jun 10 – Jul 22 | 60–90 |
| Broccoli Rabe | Mar 4 | Mar 25 | Apr 8 | May 20 – Jun 24 | 40–60 |
| Brussels Sprouts | Mar 4 | Mar 25 | Apr 8 | Jul 8 – Sep 2 | 90–130 |
| Butternut Squash | Mar 4 | Apr 15 | Apr 22 | Jul 22 – Aug 26 | 85–110 |
| Cabbage | Mar 4 | Mar 25 | Apr 8 | Jun 10 – Aug 5 | 60–100 |
| Calabash | Feb 11 | Apr 15 | Apr 22 | Jul 15 – Sep 9 | 80–120 |
| Carrots | — | Mar 25 | — | May 27 – Jul 1 | 60–80 |
| Cauliflower | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Aug 5 | 55–100 |
| Celeriac | Mar 4 | Mar 25 | Apr 8 | Jul 22 – Aug 26 | 100–120 |
| Celery | Mar 4 | Mar 25 | Apr 8 | Jul 1 – Aug 26 | 80–120 |
| Celtuce | Mar 4 | Mar 25 | Apr 8 | Jun 10 – Jul 22 | 60–90 |
| Chard | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Jul 22 | 50–60 |
| Chickpeas | Mar 4 | Mar 25 | Apr 8 | Jul 1 – Aug 12 | 80–110 |
| Chicory | Mar 4 | Mar 25 | Apr 8 | Jun 10 – Jul 22 | 60–85 |
| Chinese Cabbage | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Jul 1 | 50–70 |
| Christmas Lima Beans | Feb 11 | Apr 15 | Apr 22 | Jul 15 – Aug 19 | 80–100 |
| Collard Greens | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Aug 5 | 55–75 |
| Corn | — | Apr 15 | — | Jun 17 – Aug 12 | 60–100 |
| Cowpeas | — | Apr 15 | — | Jun 17 – Jul 29 | 60–90 |
| Cress | Mar 4 | Mar 25 | Apr 8 | Apr 22 – May 13 | 14–21 |
| Crookneck Squash | Mar 4 | Apr 15 | Apr 22 | Jun 10 – Jul 8 | 45–60 |
| Crosne | — | Mar 25 | — | Aug 26 – Oct 7 | 150–200 |
| Cucumber | Mar 4 | Apr 15 | Apr 22 | Jun 17 – Aug 12 | 50–70 |
| Daikon | — | Mar 25 | — | May 20 – Jun 17 | 50–70 |
| Delicata Squash | Mar 4 | Apr 15 | Apr 22 | Jul 15 – Aug 19 | 80–100 |
| Edamame | — | Apr 15 | — | Jul 1 – Aug 12 | 75–100 |
| Eggplant | Jan 28 | Apr 15 | Apr 22 | Jul 1 – Sep 2 | 65–85 |
| Endive | Mar 4 | Mar 25 | Apr 8 | May 27 – Jul 1 | 45–65 |
| Escarole | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Jul 1 | 50–70 |
| Fava Beans | Mar 4 | Mar 25 | Apr 8 | Jun 24 – Aug 5 | 75–100 |
| Fennel | Feb 11 | Apr 15 | Apr 22 | Jun 24 – Aug 5 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | Apr 15 | — | Jun 10 – Aug 5 | 50–65 |
| Horseradish | — | — | Apr 22 | Aug 26 – Nov 4 | 120–180 |
| Hot Peppers | Jan 28 | Apr 15 | Apr 22 | Jul 1 – Oct 7 | 70–120 |
| Hubbard Squash | Mar 4 | Apr 15 | Apr 22 | Aug 5 – Sep 9 | 100–120 |
| Kabocha | Mar 4 | Apr 15 | Apr 22 | Jul 22 – Aug 19 | 85–100 |
| Kai Lan | Mar 4 | Mar 25 | Apr 8 | May 27 – Jun 24 | 45–60 |
| Kale | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Jul 29 | 50–70 |
| Kidney Beans | — | Apr 15 | — | Jul 15 – Aug 19 | 85–110 |
| Kohlrabi | Mar 4 | Mar 25 | Apr 8 | May 27 – Jul 1 | 45–65 |
| Komatsuna | Mar 4 | Mar 25 | Apr 8 | May 13 – Jun 17 | 35–50 |
| Leeks | Mar 4 | Mar 25 | Apr 8 | Jul 8 – Sep 23 | 90–150 |
| Lentils | Mar 4 | Mar 25 | Apr 8 | Jul 1 – Aug 12 | 80–110 |
| Lettuce | Mar 4 | Mar 25 | Apr 8 | May 13 – Jul 22 | 30–60 |
| Lima Beans | — | Apr 15 | — | Jun 17 – Jul 29 | 60–90 |
| Loofah | Feb 11 | Apr 15 | Apr 22 | Aug 5 – Oct 7 | 100–150 |
| Luffa | Feb 11 | Apr 15 | Apr 22 | Jul 22 – Oct 7 | 90–150 |
| Mache | Mar 4 | Mar 25 | Apr 8 | May 20 – Jun 24 | 40–60 |
| Melon | Mar 4 | Apr 15 | Apr 22 | Jul 1 – Aug 19 | 70–100 |
| Microgreens | Mar 4 | Mar 25 | Apr 8 | Apr 15 – May 13 | 7–21 |
| Mitsuba | Mar 4 | Mar 25 | Apr 1 | May 27 – Jul 22 | 50–70 |
| Mizuna | Mar 4 | Mar 25 | Apr 8 | May 13 – Jun 10 | 30–45 |
| Mustard Greens | Mar 4 | Mar 25 | Apr 8 | May 13 – Jul 15 | 30–50 |
| Napa Cabbage | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Jul 8 | 55–75 |
| New Zealand Spinach | Feb 11 | Apr 15 | Apr 22 | Jun 17 – Jul 15 | 55–70 |
| Okra | Feb 11 | Apr 15 | Apr 22 | Jun 17 – Aug 12 | 50–65 |
| Onion | Mar 4 | Mar 25 | Apr 8 | Jul 8 – Aug 26 | 90–120 |
| Pac Choi | Mar 4 | Mar 25 | Apr 8 | May 20 – Jun 17 | 40–55 |
| Parsnip | — | Mar 25 | — | Jul 8 – Aug 19 | 100–130 |
| Patty Pan Squash | Mar 4 | Apr 15 | Apr 22 | Jun 10 – Jul 8 | 45–60 |
| Peas | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Jul 29 | 55–70 |
| Peppers | Jan 28 | Apr 15 | Apr 22 | Jun 24 – Sep 2 | 60–90 |
| Pole Beans | Feb 11 | Apr 15 | Apr 22 | Jun 17 – Aug 12 | 55–70 |
| Potatoes | Feb 11 | Apr 15 | Apr 22 | Jul 1 – Sep 9 | 70–120 |
| Pumpkin | Mar 4 | Apr 15 | Apr 22 | Jul 22 – Sep 9 | 85–120 |
| Purslane | Mar 4 | Mar 25 | Apr 8 | May 20 – Jun 24 | 40–60 |
| Radicchio | Mar 4 | Mar 25 | Apr 8 | Jun 10 – Jul 15 | 60–80 |
| Radish | — | Mar 25 | — | Apr 22 – May 13 | 22–35 |
| Rhubarb | — | — | Apr 29 | — | 365–730 |
| Romanesco | Mar 4 | Mar 25 | Apr 8 | Jun 24 – Aug 5 | 75–100 |
| Rutabaga | — | Mar 25 | — | Jun 17 – Jul 22 | 80–100 |
| Salsify | — | Mar 25 | — | Jul 8 – Aug 19 | 100–130 |
| Savoy Cabbage | Mar 4 | Mar 25 | Apr 8 | Jun 17 – Aug 12 | 70–110 |
| Scallions | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Jul 1 | 50–70 |
| Scarlet Runner Beans | Feb 11 | Apr 15 | Apr 22 | Jun 24 – Jul 29 | 60–80 |
| Shallot | Mar 4 | Mar 25 | Apr 8 | Jul 8 – Aug 26 | 90–120 |
| Shiso | Feb 18 | Apr 15 | Apr 22 | Jun 17 – Aug 12 | 50–70 |
| Snap Peas | Feb 11 | Apr 15 | Apr 22 | Jun 17 – Aug 12 | 55–70 |
| Snow Peas | Mar 4 | Mar 25 | Apr 8 | Jun 3 – Jul 29 | 50–65 |
| Soybeans | — | Apr 15 | — | Jul 8 – Sep 2 | 80–120 |
| Spaghetti Squash | Mar 4 | Apr 15 | Apr 22 | Jul 22 – Aug 19 | 85–100 |
| Spinach | Mar 4 | Mar 25 | Apr 8 | May 13 – Jul 15 | 35–50 |
| Squash (Summer) | Mar 4 | Apr 15 | Apr 22 | Jun 10 – Aug 12 | 45–65 |
| Squash (Winter) | Mar 4 | Apr 15 | Apr 22 | Jul 15 – Sep 9 | 80–120 |
| Sunchoke | — | — | Apr 22 | Aug 12 – Oct 7 | 110–150 |
| Sunflower | Feb 11 | Apr 15 | Apr 22 | Jul 1 – Aug 19 | 70–100 |
| Sweet Corn | — | Apr 15 | — | Jun 17 – Jul 29 | 60–90 |
| Sweet Potatoes | Feb 11 | Apr 15 | Apr 22 | Jul 22 – Sep 9 | 90–120 |
| Tatsoi | Mar 4 | Mar 25 | Apr 8 | May 13 – Jun 17 | 35–50 |
| Tomatillo | Feb 11 | Apr 15 | Apr 22 | Jun 24 – Sep 2 | 60–85 |
| Tomatoes | Feb 11 | Apr 15 | Apr 22 | Jun 24 – Sep 2 | 60–85 |
| Turnip | — | Mar 25 | — | May 6 – Jun 10 | 40–60 |
| Watercress | Mar 4 | Mar 25 | Apr 8 | May 20 – Jun 24 | 40–60 |
| Watermelon | Mar 4 | Apr 15 | Apr 22 | Jul 1 – Aug 19 | 70–100 |
| Wax Beans | — | Apr 15 | — | Jun 10 – Aug 5 | 50–65 |
| Winter Melon | Feb 11 | Apr 15 | Apr 22 | Jul 22 – Sep 9 | 90–120 |
| Yard Long Beans | Feb 11 | Apr 15 | Apr 22 | Jun 17 – Jul 29 | 55–80 |
| Zucchini | Mar 4 | Apr 15 | Apr 22 | Jun 10 – Aug 5 | 45–60 |
🍓 Fruits to Grow in Posey County
27 fruits that grow well in Zone 6b with planting dates for Posey County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Apr 29 | Jul 29 – Nov 11 | 90–180 |
| Aronia | — | — | Apr 29 | — | 730–1095 |
| Blackberries | — | — | Apr 29 | — | 365–730 |
| Blueberries | — | — | Apr 29 | — | 730–1095 |
| Boysenberries | — | — | Apr 29 | — | 365–730 |
| Cantaloupe | — | — | Apr 29 | Jul 8 – Aug 12 | 70–90 |
| Che Fruit | — | — | Apr 29 | — | 1095–1825 |
| Cranberries | — | — | Apr 29 | — | 730–1095 |
| Currants | — | — | Apr 29 | — | 730–1095 |
| Elderberries | — | — | Apr 29 | — | 730–1095 |
| Goji Berries | — | — | Apr 29 | — | 730–1095 |
| Gooseberries | — | — | Apr 29 | — | 730–1095 |
| Grapes | — | — | Apr 29 | — | 730–1095 |
| Ground Cherry | — | — | Apr 29 | Jul 8 – Sep 2 | 65–80 |
| Hardy Kiwi | — | — | Apr 29 | — | 1095–1825 |
| Haskaps | — | — | Apr 29 | — | 730–1095 |
| Honeydew | — | — | Apr 29 | Jul 22 – Sep 2 | 80–110 |
| Jostaberry | — | — | Apr 29 | — | 730–1095 |
| Lingonberries | — | — | Apr 29 | — | 730–1095 |
| Medlar | — | — | Apr 29 | — | 1095–1825 |
| Mulberries | — | — | Apr 29 | — | 730–1825 |
| Pawpaw | — | — | Apr 29 | — | 1095–2555 |
| Persimmon | — | — | Apr 29 | — | 1095–2555 |
| Quince | — | — | Apr 29 | — | 1095–1825 |
| Raspberries | — | — | Apr 29 | — | 365–730 |
| Serviceberries | — | — | Apr 29 | — | 730–1095 |
| Strawberries | — | — | Apr 29 | Jul 29 – Nov 11 | 90–365 |
🌿 Herbs to Grow in Posey County
38 herbs that grow well in Zone 6b with planting dates for Posey County.
Show all 38 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Mar 4 | Mar 25 | Apr 1 | — | 365–730 |
| Anise | Mar 4 | Mar 25 | Apr 1 | Jul 1 – Sep 16 | 90–120 |
| Basil | Feb 18 | Apr 15 | Apr 22 | Jun 17 – Aug 19 | 50–75 |
| Bee Balm | — | — | Apr 15 | Jul 15 – Sep 30 | 90–120 |
| Borage | Mar 4 | Mar 25 | Apr 1 | May 27 – Jul 15 | 50–60 |
| Caraway | Mar 4 | Mar 25 | Apr 1 | — | 365–450 |
| Catnip | — | — | Apr 15 | Jun 17 – Aug 19 | 60–80 |
| Chamomile | Mar 4 | Mar 25 | Apr 1 | Jun 3 – Aug 12 | 60–90 |
| Chervil | Mar 4 | Mar 25 | Apr 1 | May 13 – Jul 15 | 40–60 |
| Chives | — | — | Apr 15 | Jun 17 – Aug 26 | 60–90 |
| Cilantro | Mar 4 | Mar 25 | Apr 1 | May 13 – Jul 15 | 40–60 |
| Comfrey | — | — | Apr 15 | Jun 17 – Aug 26 | 60–90 |
| Cumin | Mar 4 | Mar 25 | Apr 1 | Jul 15 – Sep 16 | 100–120 |
| Dill | Mar 4 | Mar 25 | Apr 1 | May 13 – Jul 15 | 40–60 |
| Echinacea | — | — | Apr 15 | Aug 19 – Oct 28 | 120–180 |
| Epazote | Feb 18 | Apr 15 | Apr 22 | Jun 10 – Aug 5 | 45–60 |
| Fennel (herb) | Mar 4 | Mar 25 | Apr 1 | Jun 3 – Aug 12 | 60–90 |
| Feverfew | — | — | Apr 15 | Jul 15 – Sep 30 | 90–120 |
| Garlic Chives | — | — | Apr 15 | Jun 17 – Aug 26 | 60–90 |
| Horehound | — | — | Apr 15 | Jul 1 – Aug 26 | 75–90 |
| Hyssop | — | — | Apr 15 | Jun 24 – Aug 26 | 70–90 |
| Lavender | — | — | Apr 15 | Jul 15 – Oct 28 | 90–200 |
| Lemon Balm | — | — | Apr 15 | Jun 17 – Aug 5 | 60–70 |
| Lemon Thyme | — | — | Apr 15 | Jun 24 – Aug 26 | 70–90 |
| Lovage | — | — | Apr 15 | Jun 24 – Aug 26 | 70–90 |
| Marjoram | — | — | Apr 15 | Jun 17 – Aug 26 | 60–90 |
| Mint | — | — | Apr 15 | Jun 17 – Aug 26 | 60–90 |
| Oregano | — | — | Apr 15 | Jun 17 – Aug 26 | 60–90 |
| Parsley | Mar 4 | Mar 25 | Apr 1 | Jun 3 – Aug 5 | 60–80 |
| Rue | — | — | Apr 15 | Jun 24 – Aug 26 | 70–90 |
| Sage | — | — | Apr 15 | Jul 1 – Aug 26 | 75–90 |
| Savory | — | — | Apr 15 | Jun 10 – Aug 5 | 50–70 |
| Sorrel | Mar 4 | Mar 25 | Apr 1 | May 13 – Jul 15 | 40–60 |
| Tarragon | — | — | Apr 15 | Jun 17 – Aug 26 | 60–90 |
| Thai Basil | Feb 18 | Apr 15 | Apr 22 | Jun 17 – Aug 19 | 50–75 |
| Thyme | — | — | Apr 15 | Jun 24 – Aug 26 | 70–90 |
| Valerian | — | — | Apr 15 | Aug 19 – Oct 28 | 120–180 |
| Yarrow | — | — | Apr 15 | Jul 15 – Sep 30 | 90–120 |
Monthly Planting Guide for Posey County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Posey County.
Frequently Asked Questions
What planting zone is Posey County, IN?
Posey County is in USDA Hardiness Zone 6b. 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 Posey County, IN?
Based on 30 years of NOAA weather station data, the median last spring frost in Posey County falls around April 8. In 8 out of 10 years, last frost lands between March 20 and April 20 — a 30-day window of variability. Use April 20 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Posey County, IN?
The median first fall frost in Posey County arrives around October 28. In cold years it can arrive as early as October 10; in mild years as late as November 17. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Posey County?
Posey County has a frost-free growing season of approximately 203 days. This long season supports multiple succession plantings and warm-season crops that need extended heat, like sweet potatoes and melons. Climate records show the growing season is trending shorter by about 0.78 days per decade.
What is the soil like in Posey County for gardening?
Posey County has predominantly Silt Loam soil with a pH range of 6.2–7 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Posey County?
Posey County has commercial agriculture that includes Corn, Soybeans, Hay, Wheat, Oats. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Posey County a good location for home gardening?
Posey County scores 69/100 (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 Posey County gardeners in Zone 6b 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.
