Decatur County, KS — Planting Guide
Decatur County is in USDA Zone 5b. The average last spring frost is April 30 and the first fall frost is October 7, giving you a growing season of approximately 160 days.
At an elevation of 840 ft, Decatur County receives approximately 30.6 in of rainfall annually. Summer highs average 87°F with winter lows around 12°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 24 days year to year — ranging from April 18 in warm years to May 13 in cold years. The growing season is trending shorter by about 1.05 days per decade. Decatur County scores 62/100 (Good) on the Microclimate Index.
🌡️ Zone
5b (-15°F to -10°F min)
❄️ Last Frost
April 30
🍂 First Frost
October 7
📅 Growing Season
160 days
⛰️ Elevation
840 ft
🌧️ Annual Rainfall
30.6 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 | 2.4 in | 7 days | — | None |
| Feb | 1.7 in | 6 days | — | None |
| Mar | 2.5 in | 6 days | — | None |
| Apr | 2.8 in | 7 days | 1.5 in | Moderate |
| May | 3.8 in | 7 days | 0.5 in | Low |
| Jun | 2.2 in | 4 days | 2.1 in | High |
| Jul | 3.1 in | 6 days | 1.2 in | Moderate |
| Aug | 2.9 in | 6 days | 1.4 in | Moderate |
| Sep | 2.2 in | 5 days | 2.1 in | High |
| Oct | 2.8 in | 6 days | 1.5 in | Moderate |
| Nov | 2.3 in | 5 days | — | None |
| Dec | 1.8 in | 7 days | — | None |
Annual total: 30.5 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.
Decatur County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.6
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 13 | Oct 23 | 163 days |
| Cautious | May 8 | Oct 14 | 159 days |
| Average year | Apr 30 | Oct 7 | 160 days |
| Optimistic | Apr 26 | Oct 2 | 159 days |
| Aggressive (risky) | Apr 18 | Sep 20 | 155 days |
Not very — frost dates can vary by ±24 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 shorter here (about 1.1 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.
Gardening Difficulty Score
Decatur County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Decatur 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 Decatur County's climate and soil.
County Extension Office
Decatur County Kansas State University Extension Extension Office
Phone: 785-532-5820
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 Decatur County
Finding local nurseries & garden centers in Decatur County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Decatur 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 Decatur County KS" or "garden center Decatur 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 Decatur County KS" or check your extension office and local parks department. Facebook groups like "Decatur County Gardeners" or "Kansas 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
10.1 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 | 5.4 hr | Short day |
| February | 10.5 hr | 6.2 hr | Short day |
| March | 11.7 hr | 6.9 hr | Short day |
| April | 13.1 hr | 8.1 hr | Neutral |
| May | 14.2 hr | 8.6 hr | Long day |
| June | 14.8 hr | 9.6 hr | Long day |
| July | 14.6 hr | 10.1 hr | Long day |
| August | 13.6 hr | 9.2 hr | Neutral |
| September | 12.2 hr | 8.5 hr | Neutral |
| October | 10.9 hr | 6.9 hr | Short day |
| November | 9.8 hr | 5.7 hr | Short day |
| December | 9.2 hr | 4.9 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 | 25°F | 32°F | ❄️ Dormant | ~36 weeks |
| Feb | 23°F | 30°F | ❄️ Dormant | ~36 weeks |
| Mar | 31°F | 34°F | ❄️ Dormant | ~36 weeks |
| Apr | 44°F | 44°F | 🐢 Slow | ~24 weeks |
| May | 60°F | 55°F | ♻️ Active | ~14 weeks |
| Jun | 70°F | 64°F | 🔥 Peak | ~8 weeks |
| Jul | 79°F | 72°F | 🔥 Peak | ~8 weeks |
| Aug | 77°F | 73°F | 🔥 Peak | ~8 weeks |
| Sep | 69°F | 68°F | 🔥 Peak | ~8 weeks |
| Oct | 58°F | 61°F | ♻️ Active | ~14 weeks |
| Nov | 44°F | 48°F | 🐢 Slow | ~24 weeks |
| Dec | 30°F | 40°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 Decatur 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
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 5 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash bugs | Low | Jun, Jul, Aug |
| Tomato hornworms | Low | Jul, Aug |
| Cabbage loopers | Low | May, Jun, Jul, Aug |
Organic pest management tips
- Maintain healthy soil with regular compost additions to build natural pest resistance
- Practice crop rotation annually to break pest cycles
- Encourage beneficial insects with flowering herbs like dill, fennel, and yarrow
Cover Crops for Decatur 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 10 | Apr 16 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Aug 10 | Apr 16 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 12 | Apr 16 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 25 | Apr 9 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 2 | Apr 9 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 7 | Apr 16 | — | 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 3 | Aug 5 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | May 4 | Aug 12 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Apr 5 | Aug 5 | ✓ 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 18 | Sep 23 | — | 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: 17 mph Summer: 12 mph
Fall: 13 mph Winter: 15 mph
Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.
Windbreak Benefit
8.8/10
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 (103 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
15,201 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 1,250 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Apr, May, Jul, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Feb, Sep, 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 30.5 inches of rain per year
- A 1,000 sq ft roof can collect roughly 15,201 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Feb, Sep, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Decatur County
Soil Type
Loam
Soil pH 6.8–7.6 · Excessively Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 9.5/10
Very high drought stress. Irrigation is critical for garden success. Focus on water-efficient techniques and drought-adapted crops.
Season Tips
160-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 Decatur County
106 vegetables that grow well in Zone 5b with planting dates for Decatur County.
Show all 106 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Mar 26 | May 7 | May 14 | Aug 6 – Sep 10 | 80–100 |
| Amaranth | Mar 5 | May 7 | May 14 | Aug 13 – Oct 1 | 90–120 |
| Arugula | Mar 26 | Apr 16 | Apr 30 | Jun 4 – Aug 6 | 30–50 |
| Asparagus | — | — | May 14 | — | 730–1095 |
| Beets | — | Apr 16 | — | Jun 11 – Jul 9 | 50–70 |
| Belgian Endive | Mar 26 | Apr 16 | Apr 30 | Aug 20 – Oct 15 | 110–150 |
| Bitter Melon | Mar 5 | May 7 | May 14 | Jul 16 – Aug 27 | 60–90 |
| Black Beans | — | May 7 | — | Aug 6 – Sep 24 | 90–120 |
| Bok Choy | Mar 26 | Apr 16 | Apr 30 | Jun 11 – Jul 16 | 40–60 |
| Broccoli | Mar 26 | Apr 16 | Apr 30 | Jul 2 – Aug 13 | 60–90 |
| Broccoli Rabe | Mar 26 | Apr 16 | Apr 30 | Jun 11 – Jul 16 | 40–60 |
| Brussels Sprouts | Mar 26 | Apr 16 | Apr 30 | Jul 30 – Sep 24 | 90–130 |
| Butternut Squash | Mar 26 | May 7 | May 14 | Aug 13 – Sep 17 | 85–110 |
| Cabbage | Mar 26 | Apr 16 | Apr 30 | Jul 2 – Aug 27 | 60–100 |
| Calabash | Mar 5 | May 7 | May 14 | Aug 6 – Oct 1 | 80–120 |
| Carrots | — | Apr 16 | — | Jun 18 – Jul 23 | 60–80 |
| Cauliflower | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Aug 27 | 55–100 |
| Celeriac | Mar 26 | Apr 16 | Apr 30 | Aug 13 – Sep 17 | 100–120 |
| Celery | Mar 26 | Apr 16 | Apr 30 | Jul 23 – Sep 17 | 80–120 |
| Celtuce | Mar 26 | Apr 16 | Apr 30 | Jul 2 – Aug 13 | 60–90 |
| Chard | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Aug 13 | 50–60 |
| Chickpeas | Mar 26 | Apr 16 | Apr 30 | Jul 23 – Sep 3 | 80–110 |
| Chicory | Mar 26 | Apr 16 | Apr 30 | Jul 2 – Aug 13 | 60–85 |
| Chinese Cabbage | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Jul 23 | 50–70 |
| Christmas Lima Beans | Mar 5 | May 7 | May 14 | Aug 6 – Sep 10 | 80–100 |
| Collard Greens | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Aug 27 | 55–75 |
| Corn | — | May 7 | — | Jul 9 – Sep 3 | 60–100 |
| Cowpeas | — | May 7 | — | Jul 9 – Aug 20 | 60–90 |
| Cress | Mar 26 | Apr 16 | Apr 30 | May 14 – Jun 4 | 14–21 |
| Crookneck Squash | Mar 26 | May 7 | May 14 | Jul 2 – Jul 30 | 45–60 |
| Crosne | — | Apr 16 | — | Sep 17 – Oct 1 | 150–200 |
| Cucumber | Mar 26 | May 7 | May 14 | Jul 9 – Sep 3 | 50–70 |
| Daikon | — | Apr 16 | — | Jun 11 – Jul 9 | 50–70 |
| Delicata Squash | Mar 26 | May 7 | May 14 | Aug 6 – Sep 10 | 80–100 |
| Edamame | — | May 7 | — | Jul 23 – Sep 3 | 75–100 |
| Eggplant | Feb 19 | May 7 | May 14 | Jul 23 – Sep 24 | 65–85 |
| Endive | Mar 26 | Apr 16 | Apr 30 | Jun 18 – Jul 23 | 45–65 |
| Escarole | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Jul 23 | 50–70 |
| Fava Beans | Mar 26 | Apr 16 | Apr 30 | Jul 16 – Aug 27 | 75–100 |
| Fennel | Mar 5 | May 7 | May 14 | Jul 16 – Aug 27 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | May 7 | — | Jul 2 – Aug 27 | 50–65 |
| Horseradish | — | — | May 14 | Sep 17 – Oct 29 | 120–180 |
| Hot Peppers | Feb 19 | May 7 | May 14 | Jul 23 – Oct 29 | 70–120 |
| Hubbard Squash | Mar 26 | May 7 | May 14 | Aug 27 – Oct 1 | 100–120 |
| Kabocha | Mar 26 | May 7 | May 14 | Aug 13 – Sep 10 | 85–100 |
| Kai Lan | Mar 26 | Apr 16 | Apr 30 | Jun 18 – Jul 16 | 45–60 |
| Kale | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Aug 20 | 50–70 |
| Kidney Beans | — | May 7 | — | Aug 6 – Sep 10 | 85–110 |
| Kohlrabi | Mar 26 | Apr 16 | Apr 30 | Jun 18 – Jul 23 | 45–65 |
| Komatsuna | Mar 26 | Apr 16 | Apr 30 | Jun 4 – Jul 9 | 35–50 |
| Leeks | Mar 26 | Apr 16 | Apr 30 | Jul 30 – Oct 15 | 90–150 |
| Lentils | Mar 26 | Apr 16 | Apr 30 | Jul 23 – Sep 3 | 80–110 |
| Lettuce | Mar 26 | Apr 16 | Apr 30 | Jun 4 – Aug 13 | 30–60 |
| Lima Beans | — | May 7 | — | Jul 9 – Aug 20 | 60–90 |
| Mache | Mar 26 | Apr 16 | Apr 30 | Jun 11 – Jul 16 | 40–60 |
| Melon | Mar 26 | May 7 | May 14 | Jul 23 – Sep 10 | 70–100 |
| Microgreens | Mar 26 | Apr 16 | Apr 30 | May 7 – Jun 4 | 7–21 |
| Mitsuba | Mar 26 | Apr 16 | Apr 23 | Jun 18 – Aug 13 | 50–70 |
| Mizuna | Mar 26 | Apr 16 | Apr 30 | Jun 4 – Jul 2 | 30–45 |
| Mustard Greens | Mar 26 | Apr 16 | Apr 30 | Jun 4 – Aug 6 | 30–50 |
| Napa Cabbage | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Jul 30 | 55–75 |
| New Zealand Spinach | Mar 5 | May 7 | May 14 | Jul 9 – Aug 6 | 55–70 |
| Okra | Mar 5 | May 7 | May 14 | Jul 9 – Sep 3 | 50–65 |
| Onion | Mar 26 | Apr 16 | Apr 30 | Jul 30 – Sep 17 | 90–120 |
| Pac Choi | Mar 26 | Apr 16 | Apr 30 | Jun 11 – Jul 9 | 40–55 |
| Parsnip | — | Apr 16 | — | Jul 30 – Sep 10 | 100–130 |
| Patty Pan Squash | Mar 26 | May 7 | May 14 | Jul 2 – Jul 30 | 45–60 |
| Peas | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Aug 20 | 55–70 |
| Peppers | Feb 19 | May 7 | May 14 | Jul 16 – Sep 24 | 60–90 |
| Pole Beans | Mar 5 | May 7 | May 14 | Jul 9 – Sep 3 | 55–70 |
| Potatoes | Mar 5 | May 7 | May 14 | Jul 23 – Oct 1 | 70–120 |
| Pumpkin | Mar 26 | May 7 | May 14 | Aug 13 – Oct 1 | 85–120 |
| Purslane | Mar 26 | Apr 16 | Apr 30 | Jun 11 – Jul 16 | 40–60 |
| Radicchio | Mar 26 | Apr 16 | Apr 30 | Jul 2 – Aug 6 | 60–80 |
| Radish | — | Apr 16 | — | May 14 – Jun 4 | 22–35 |
| Rhubarb | — | — | May 21 | — | 365–730 |
| Romanesco | Mar 26 | Apr 16 | Apr 30 | Jul 16 – Aug 27 | 75–100 |
| Rutabaga | — | Apr 16 | — | Jul 9 – Aug 13 | 80–100 |
| Salsify | — | Apr 16 | — | Jul 30 – Sep 10 | 100–130 |
| Savoy Cabbage | Mar 26 | Apr 16 | Apr 30 | Jul 9 – Sep 3 | 70–110 |
| Scallions | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Jul 23 | 50–70 |
| Scarlet Runner Beans | Mar 5 | May 7 | May 14 | Jul 16 – Aug 20 | 60–80 |
| Shallot | Mar 26 | Apr 16 | Apr 30 | Jul 30 – Sep 17 | 90–120 |
| Shiso | Mar 12 | May 7 | May 14 | Jul 9 – Sep 3 | 50–70 |
| Snap Peas | Mar 5 | May 7 | May 14 | Jul 9 – Sep 3 | 55–70 |
| Snow Peas | Mar 26 | Apr 16 | Apr 30 | Jun 25 – Aug 20 | 50–65 |
| Soybeans | — | May 7 | — | Jul 30 – Sep 24 | 80–120 |
| Spaghetti Squash | Mar 26 | May 7 | May 14 | Aug 13 – Sep 10 | 85–100 |
| Spinach | Mar 26 | Apr 16 | Apr 30 | Jun 4 – Aug 6 | 35–50 |
| Squash (Summer) | Mar 26 | May 7 | May 14 | Jul 2 – Sep 3 | 45–65 |
| Squash (Winter) | Mar 26 | May 7 | May 14 | Aug 6 – Oct 1 | 80–120 |
| Sunchoke | — | — | May 14 | Sep 3 – Oct 29 | 110–150 |
| Sunflower | Mar 5 | May 7 | May 14 | Jul 23 – Sep 10 | 70–100 |
| Sweet Corn | — | May 7 | — | Jul 9 – Aug 20 | 60–90 |
| Sweet Potatoes | Mar 5 | May 7 | May 14 | Aug 13 – Oct 1 | 90–120 |
| Tatsoi | Mar 26 | Apr 16 | Apr 30 | Jun 4 – Jul 9 | 35–50 |
| Tomatillo | Mar 5 | May 7 | May 14 | Jul 16 – Sep 24 | 60–85 |
| Tomatoes | Mar 5 | May 7 | May 14 | Jul 16 – Sep 24 | 60–85 |
| Turnip | — | Apr 16 | — | May 28 – Jul 2 | 40–60 |
| Watercress | Mar 26 | Apr 16 | Apr 30 | Jun 11 – Jul 16 | 40–60 |
| Watermelon | Mar 26 | May 7 | May 14 | Jul 23 – Sep 10 | 70–100 |
| Wax Beans | — | May 7 | — | Jul 2 – Aug 27 | 50–65 |
| Winter Melon | Mar 5 | May 7 | May 14 | Aug 13 – Oct 1 | 90–120 |
| Yard Long Beans | Mar 5 | May 7 | May 14 | Jul 9 – Aug 20 | 55–80 |
| Zucchini | Mar 26 | May 7 | May 14 | Jul 2 – Aug 27 | 45–60 |
🍓 Fruits to Grow in Decatur County
27 fruits that grow well in Zone 5b with planting dates for Decatur County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 21 | Aug 20 – Nov 5 | 90–180 |
| Aronia | — | — | May 21 | — | 730–1095 |
| Blackberries | — | — | May 21 | — | 365–730 |
| Blueberries | — | — | May 21 | — | 730–1095 |
| Boysenberries | — | — | May 21 | — | 365–730 |
| Cantaloupe | — | — | May 21 | Jul 30 – Sep 3 | 70–90 |
| Che Fruit | — | — | May 21 | — | 1095–1825 |
| Cranberries | — | — | May 21 | — | 730–1095 |
| Currants | — | — | May 21 | — | 730–1095 |
| Elderberries | — | — | May 21 | — | 730–1095 |
| Goji Berries | — | — | May 21 | — | 730–1095 |
| Gooseberries | — | — | May 21 | — | 730–1095 |
| Grapes | — | — | May 21 | — | 730–1095 |
| Ground Cherry | — | — | May 21 | Jul 30 – Sep 24 | 65–80 |
| Hardy Kiwi | — | — | May 21 | — | 1095–1825 |
| Haskaps | — | — | May 21 | — | 730–1095 |
| Honeydew | — | — | May 21 | Aug 13 – Sep 24 | 80–110 |
| Jostaberry | — | — | May 21 | — | 730–1095 |
| Lingonberries | — | — | May 21 | — | 730–1095 |
| Medlar | — | — | May 21 | — | 1095–1825 |
| Mulberries | — | — | May 21 | — | 730–1825 |
| Pawpaw | — | — | May 21 | — | 1095–2555 |
| Persimmon | — | — | May 21 | — | 1095–2555 |
| Quince | — | — | May 21 | — | 1095–1825 |
| Raspberries | — | — | May 21 | — | 365–730 |
| Serviceberries | — | — | May 21 | — | 730–1095 |
| Strawberries | — | — | May 21 | Aug 20 – Nov 5 | 90–365 |
🌿 Herbs to Grow in Decatur County
37 herbs that grow well in Zone 5b with planting dates for Decatur County.
Show all 37 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Mar 26 | Apr 16 | Apr 23 | — | 365–730 |
| Anise | Mar 26 | Apr 16 | Apr 23 | Jul 23 – Oct 8 | 90–120 |
| Basil | Mar 12 | May 7 | May 14 | Jul 9 – Sep 10 | 50–75 |
| Bee Balm | — | — | May 7 | Aug 6 – Oct 22 | 90–120 |
| Borage | Mar 26 | Apr 16 | Apr 23 | Jun 18 – Aug 6 | 50–60 |
| Caraway | Mar 26 | Apr 16 | Apr 23 | — | 365–450 |
| Catnip | — | — | May 7 | Jul 9 – Sep 10 | 60–80 |
| Chamomile | Mar 26 | Apr 16 | Apr 23 | Jun 25 – Sep 3 | 60–90 |
| Chervil | Mar 26 | Apr 16 | Apr 23 | Jun 4 – Aug 6 | 40–60 |
| Chives | — | — | May 7 | Jul 9 – Sep 17 | 60–90 |
| Cilantro | Mar 26 | Apr 16 | Apr 23 | Jun 4 – Aug 6 | 40–60 |
| Comfrey | — | — | May 7 | Jul 9 – Sep 17 | 60–90 |
| Cumin | Mar 26 | Apr 16 | Apr 23 | Aug 6 – Oct 8 | 100–120 |
| Dill | Mar 26 | Apr 16 | Apr 23 | Jun 4 – Aug 6 | 40–60 |
| Echinacea | — | — | May 7 | Sep 10 – Oct 22 | 120–180 |
| Epazote | Mar 12 | May 7 | May 14 | Jul 2 – Aug 27 | 45–60 |
| Fennel (herb) | Mar 26 | Apr 16 | Apr 23 | Jun 25 – Sep 3 | 60–90 |
| Feverfew | — | — | May 7 | Aug 6 – Oct 22 | 90–120 |
| Garlic Chives | — | — | May 7 | Jul 9 – Sep 17 | 60–90 |
| Horehound | — | — | May 7 | Jul 23 – Sep 17 | 75–90 |
| Hyssop | — | — | May 7 | Jul 16 – Sep 17 | 70–90 |
| Lavender | — | — | May 7 | Aug 6 – Oct 22 | 90–200 |
| Lemon Balm | — | — | May 7 | Jul 9 – Aug 27 | 60–70 |
| Lemon Thyme | — | — | May 7 | Jul 16 – Sep 17 | 70–90 |
| Lovage | — | — | May 7 | Jul 16 – Sep 17 | 70–90 |
| Mint | — | — | May 7 | Jul 9 – Sep 17 | 60–90 |
| Oregano | — | — | May 7 | Jul 9 – Sep 17 | 60–90 |
| Parsley | Mar 26 | Apr 16 | Apr 23 | Jun 25 – Aug 27 | 60–80 |
| Rue | — | — | May 7 | Jul 16 – Sep 17 | 70–90 |
| Sage | — | — | May 7 | Jul 23 – Sep 17 | 75–90 |
| Savory | — | — | May 7 | Jul 2 – Aug 27 | 50–70 |
| Sorrel | Mar 26 | Apr 16 | Apr 23 | Jun 4 – Aug 6 | 40–60 |
| Tarragon | — | — | May 7 | Jul 9 – Sep 17 | 60–90 |
| Thai Basil | Mar 12 | May 7 | May 14 | Jul 9 – Sep 10 | 50–75 |
| Thyme | — | — | May 7 | Jul 16 – Sep 17 | 70–90 |
| Valerian | — | — | May 7 | Sep 10 – Oct 22 | 120–180 |
| Yarrow | — | — | May 7 | Aug 6 – Oct 22 | 90–120 |
Monthly Planting Guide for Decatur County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Decatur County.
Frequently Asked Questions
What planting zone is Decatur County, KS?
Decatur 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 Decatur County, KS?
Based on 31 years of NOAA weather station data, the median last spring frost in Decatur County falls around April 30. In 8 out of 10 years, last frost lands between April 18 and May 13 — a 24-day window of variability. Use May 13 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Decatur County, KS?
The median first fall frost in Decatur County arrives around October 7. In cold years it can arrive as early as September 20; 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 Decatur County?
Decatur County has a frost-free growing season of approximately 160 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 shorter by about 1.05 days per decade.
What is the soil like in Decatur County for gardening?
Decatur County has predominantly Loam soil with a pH range of 6.8–7.6 and Excessively Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Decatur County?
Decatur County has commercial agriculture that includes Corn, Soybeans, Wheat, Sorghum, Hay. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Decatur County a good location for home gardening?
Decatur County scores 62/100 (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 Decatur 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.
