Osborne County, KS — Planting Guide
Osborne County, Kansas gardeners: here's your June plan
If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.
-
Get basil, pole beans, and thai basil seeds going inside
Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.
-
Start harvesting carrots, green beans, and kale
Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.
July prep starts now
- Starting indoors: peppers, begonias, and eggplant
- First harvests: basil, carrots, and cucumber
Osborne County is in USDA Zone 6a. The average last spring frost is April 23 and the first fall frost is October 14, giving you a growing season of approximately 174 days.
At an elevation of 608 ft, Osborne County receives approximately 31.8 in of rainfall annually. Summer highs average 87°F with winter lows around 11°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 26 days year to year — ranging from April 10 in warm years to May 7 in cold years. Osborne County scores 71/100 (Good) on the Microclimate Index.
🌡️ Zone
6a (-10°F to -5°F min)
❄️ Last Frost
April 23
🍂 First Frost
October 14
📅 Growing Season
174 days
⛰️ Elevation
608 ft
🌧️ Annual Rainfall
31.8 in
Monthly Watering Calendar for Osborne County
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
Quick context: Watering by the calendar wastes water. Watering by the soil moisture (or by a free rain gauge) cuts your water use 30%+ and produces healthier roots. Osborne County's 32" annual baseline is the starting point.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 0.9 in | 3 days | — | None |
| Feb | 1.2 in | 5 days | — | None |
| Mar | 2 in | 6 days | — | None |
| Apr | 3.8 in | 9 days | 0.5 in | Low |
| May | 4.3 in | 10 days | — | Low |
| Jun | 4.5 in | 8 days | — | Low |
| Jul | 3.9 in | 7 days | 0.4 in | Low |
| Aug | 4.2 in | 6 days | 0.1 in | Low |
| Sep | 3 in | 5 days | 1.3 in | Moderate |
| Oct | 2.1 in | 5 days | 2.2 in | High |
| Nov | 1.1 in | 4 days | — | None |
| Dec | 0.8 in | 4 days | — | None |
Annual total: 31.8 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.
Osborne County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.5
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 7 | Oct 26 | 172 days |
| Cautious | Apr 28 | Oct 18 | 173 days |
| Average year | Apr 23 | Oct 14 | 174 days |
| Optimistic | Apr 17 | Oct 8 | 174 days |
| Aggressive (risky) | Apr 10 | Sep 30 | 173 days |
Not very — frost dates can vary by ±26 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 (0.5 days/decade). Stay conservative with planting dates.
Gardening Difficulty Score
Osborne County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Osborne 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 Osborne County's climate and soil.
County Extension Office
Osborne 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 Osborne County
Finding local nurseries & garden centers in Osborne County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Osborne 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 Osborne County KS" or "garden center Osborne 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 Osborne County KS" or check your extension office and local parks department. Facebook groups like "Osborne 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 in Osborne County
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
The practical takeaway: Lettuce and cilantro "bolt" (go to seed) when days lengthen. Knowing your day-length curve helps you time spring plantings to harvest before the bolting trigger hits. Osborne County's daylight ranges shape the planting calendar.
Longest Day
14.8 hours
Summer solstice daylight
Shortest Day
9.2 hours
Winter solstice daylight
Peak Sun Hours
10.8 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 | 6.1 hr | Short day |
| March | 11.7 hr | 7.3 hr | Short day |
| April | 13 hr | 8.3 hr | Neutral |
| May | 14.2 hr | 8.8 hr | Long day |
| June | 14.8 hr | 10.2 hr | Long day |
| July | 14.5 hr | 10.8 hr | Long day |
| August | 13.5 hr | 9.9 hr | Neutral |
| September | 12.2 hr | 8 hr | Neutral |
| October | 10.9 hr | 7.2 hr | Short day |
| November | 9.8 hr | 5.5 hr | Short day |
| December | 9.2 hr | 5 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Osborne County
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Why this matters: Soil temperature predicts plant emergence better than calendar dates. Osborne County's spring soil warm-up curve tells you which weeks are safe for direct-sow beans, cucumbers, squash, and corn.
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 | 31°F | ❄️ Dormant | ~36 weeks |
| Feb | 26°F | 31°F | ❄️ Dormant | ~36 weeks |
| Mar | 32°F | 36°F | ❄️ Dormant | ~36 weeks |
| Apr | 47°F | 46°F | 🐢 Slow | ~24 weeks |
| May | 58°F | 56°F | ♻️ Active | ~14 weeks |
| Jun | 68°F | 64°F | 🔥 Peak | ~8 weeks |
| Jul | 77°F | 71°F | 🔥 Peak | ~8 weeks |
| Aug | 80°F | 73°F | 🔥 Peak | ~8 weeks |
| Sep | 71°F | 69°F | 🔥 Peak | ~8 weeks |
| Oct | 58°F | 62°F | ♻️ Active | ~14 weeks |
| Nov | 43°F | 50°F | 🐢 Slow | ~24 weeks |
| Dec | 31°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 Osborne County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
The practical takeaway: Two gardeners can grow identical seeds and get wildly different results based on pest pressure alone. Osborne County's climate sets a floor on what's possible without intervention.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 6 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 | Moderate | Jul, Aug |
| Cabbage loopers | Moderate | May, Jun, Jul, Aug |
| Slugs | Low | Apr, May, Jun |
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 Osborne County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Why this matters: Cover crops fix nitrogen by hosting bacteria that pull it from the air. A vigorous legume cover crop can deliver 50-150 lbs/acre of nitrogen — meaningful for the next vegetable season.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 5 | Aug 12 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | Apr 28 | Aug 5 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 27 | Aug 12 | ✓ 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 12 | Sep 23 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (6 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 21 | Apr 2 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Aug 30 | Apr 2 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 31 | Apr 9 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 12 | Apr 2 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 14 | Apr 9 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 24 | Apr 2 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Osborne County
The practical takeaway: Wind dries soil, knocks over young transplants, and disrupts pollination for bees and butterflies. Osborne County averages 12.0 mph — above 10 mph means windbreaks (shrubs, fences, taller crops to windward), staked tomatoes from day one, and an extra round of watering during dry windy spells. Lower wind = lower water bills and fewer broken stems.
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: 14 mph Winter: 16 mph
Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.
Windbreak Benefit
9/10
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 (291 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Osborne County
How much water you can collect, when to collect it, and what size system you need for your garden.
For new gardeners: The first inch of rain washes the roof clean — a first-flush diverter sends it to waste before the barrel fills. Worth the extra $20 for cleaner garden water. Osborne County gets 32" annually, so you'll fill and flush many times per year.
Annual Collection
15,849 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 2,000 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, 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 31.8 inches of rain per year
- A 1,000 sq ft roof can collect roughly 15,849 gallons annually
- Rainwater harvesting is fully legal in your state
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Osborne County
Soil Type
Loam
Soil pH 6.8–7.5 · Moderately 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
174-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.
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 Osborne County
107 vegetables that grow well in Zone 6a with planting dates for Osborne County.
Show all 107 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 19 | Apr 30 | May 7 | — | Jul 30 – Sep 3 | 80–100 |
| Amaranth | Feb 26 | Apr 30 | May 7 | — | Aug 6 – Sep 24 | 90–120 |
| Arugula | Mar 19 | Apr 9 | Apr 23 | Aug 5 | May 28 – Jul 30 | 30–50 |
| Asparagus | — | — | May 7 | — | — | 730–1095 |
| Beets | — | Apr 9 | — | Aug 5 | Jun 4 – Jul 2 | 50–70 |
| Belgian Endive | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Aug 13 – Oct 8 | 110–150 |
| Bitter Melon | Feb 26 | Apr 30 | May 7 | — | Jul 9 – Aug 20 | 60–90 |
| Black Beans | — | Apr 30 | — | — | Jul 30 – Sep 17 | 90–120 |
| Bok Choy | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 4 – Jul 9 | 40–60 |
| Broccoli | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 25 – Aug 6 | 60–90 |
| Broccoli Rabe | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 4 – Jul 9 | 40–60 |
| Brussels Sprouts | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 23 – Sep 17 | 90–130 |
| Butternut Squash | Mar 19 | Apr 30 | May 7 | — | Aug 6 – Sep 10 | 85–110 |
| Cabbage | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 25 – Aug 20 | 60–100 |
| Calabash | Feb 26 | Apr 30 | May 7 | — | Jul 30 – Sep 24 | 80–120 |
| Carrots | — | Apr 9 | — | Aug 5 | Jun 11 – Jul 16 | 60–80 |
| Cauliflower | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Aug 20 | 55–100 |
| Celeriac | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Aug 6 – Sep 10 | 100–120 |
| Celery | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 16 – Sep 10 | 80–120 |
| Celtuce | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 25 – Aug 6 | 60–90 |
| Chard | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Aug 6 | 50–60 |
| Chickpeas | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 16 – Aug 27 | 80–110 |
| Chicory | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 25 – Aug 6 | 60–85 |
| Chinese Cabbage | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Jul 16 | 50–70 |
| Christmas Lima Beans | Feb 26 | Apr 30 | May 7 | — | Jul 30 – Sep 3 | 80–100 |
| Collard Greens | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Aug 20 | 55–75 |
| Corn | — | Apr 30 | — | — | Jul 2 – Aug 27 | 60–100 |
| Cowpeas | — | Apr 30 | — | — | Jul 2 – Aug 13 | 60–90 |
| Cress | Mar 19 | Apr 9 | Apr 23 | Aug 5 | May 7 – May 28 | 14–21 |
| Crookneck Squash | Mar 19 | Apr 30 | May 7 | — | Jun 25 – Jul 23 | 45–60 |
| Crosne | — | Apr 9 | — | Aug 5 | Sep 10 – Oct 22 | 150–200 |
| Cucumber | Mar 19 | Apr 30 | May 7 | — | Jul 2 – Aug 27 | 50–70 |
| Daikon | — | Apr 9 | — | Aug 5 | Jun 4 – Jul 2 | 50–70 |
| Delicata Squash | Mar 19 | Apr 30 | May 7 | — | Jul 30 – Sep 3 | 80–100 |
| Edamame | — | Apr 30 | — | — | Jul 16 – Aug 27 | 75–100 |
| Eggplant | Feb 12 | Apr 30 | May 7 | — | Jul 16 – Sep 17 | 65–85 |
| Endive | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 11 – Jul 16 | 45–65 |
| Escarole | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Jul 16 | 50–70 |
| Fava Beans | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 9 – Aug 20 | 75–100 |
| Fennel | Feb 26 | Apr 30 | May 7 | — | Jul 9 – Aug 20 | 60–90 |
| Garlic | — | — | — | Sep 2 | Dec 2 – Mar 17 | 90–240 |
| Green Beans | — | Apr 30 | — | — | Jun 25 – Aug 20 | 50–65 |
| Horseradish | — | — | May 7 | — | Sep 10 – Nov 19 | 120–180 |
| Hot Peppers | Feb 12 | Apr 30 | May 7 | — | Jul 16 – Oct 22 | 70–120 |
| Hubbard Squash | Mar 19 | Apr 30 | May 7 | — | Aug 20 – Sep 24 | 100–120 |
| Kabocha | Mar 19 | Apr 30 | May 7 | — | Aug 6 – Sep 3 | 85–100 |
| Kai Lan | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 11 – Jul 9 | 45–60 |
| Kale | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Aug 13 | 50–70 |
| Kidney Beans | — | Apr 30 | — | — | Jul 30 – Sep 3 | 85–110 |
| Kohlrabi | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 11 – Jul 16 | 45–65 |
| Komatsuna | Mar 19 | Apr 9 | Apr 23 | Aug 5 | May 28 – Jul 2 | 35–50 |
| Leeks | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 23 – Oct 8 | 90–150 |
| Lentils | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 16 – Aug 27 | 80–110 |
| Lettuce | Mar 19 | Apr 9 | Apr 23 | Aug 5 | May 28 – Aug 6 | 30–60 |
| Lima Beans | — | Apr 30 | — | — | Jul 2 – Aug 13 | 60–90 |
| Loofah | Feb 26 | Apr 30 | May 7 | — | Aug 20 – Oct 22 | 100–150 |
| Luffa | Feb 26 | Apr 30 | May 7 | — | Aug 6 – Oct 22 | 90–150 |
| Mache | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 4 – Jul 9 | 40–60 |
| Melon | Mar 19 | Apr 30 | May 7 | — | Jul 16 – Sep 3 | 70–100 |
| Microgreens | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Apr 30 – May 28 | 7–21 |
| Mitsuba | Mar 19 | Apr 9 | Apr 16 | Aug 5 | Jun 11 – Aug 6 | 50–70 |
| Mizuna | Mar 19 | Apr 9 | Apr 23 | Aug 5 | May 28 – Jun 25 | 30–45 |
| Mustard Greens | Mar 19 | Apr 9 | Apr 23 | Aug 5 | May 28 – Jul 30 | 30–50 |
| Napa Cabbage | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Jul 23 | 55–75 |
| New Zealand Spinach | Feb 26 | Apr 30 | May 7 | — | Jul 2 – Jul 30 | 55–70 |
| Okra | Feb 26 | Apr 30 | May 7 | — | Jul 2 – Aug 27 | 50–65 |
| Onion | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 23 – Sep 10 | 90–120 |
| Pac Choi | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 4 – Jul 2 | 40–55 |
| Parsnip | — | Apr 9 | — | Aug 5 | Jul 23 – Sep 3 | 100–130 |
| Patty Pan Squash | Mar 19 | Apr 30 | May 7 | — | Jun 25 – Jul 23 | 45–60 |
| Peas | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Aug 13 | 55–70 |
| Peppers | Feb 12 | Apr 30 | May 7 | — | Jul 9 – Sep 17 | 60–90 |
| Pole Beans | Feb 26 | Apr 30 | May 7 | — | Jul 2 – Aug 27 | 55–70 |
| Potatoes | Feb 26 | Apr 30 | May 7 | — | Jul 16 – Sep 24 | 70–120 |
| Pumpkin | Mar 19 | Apr 30 | May 7 | — | Aug 6 – Sep 24 | 85–120 |
| Purslane | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 4 – Jul 9 | 40–60 |
| Radicchio | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 25 – Jul 30 | 60–80 |
| Radish | — | Apr 9 | — | Aug 5 | May 7 – May 28 | 22–35 |
| Rhubarb | — | — | May 14 | — | — | 365–730 |
| Romanesco | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 9 – Aug 20 | 75–100 |
| Rutabaga | — | Apr 9 | — | Aug 5 | Jul 2 – Aug 6 | 80–100 |
| Salsify | — | Apr 9 | — | Aug 5 | Jul 23 – Sep 3 | 100–130 |
| Savoy Cabbage | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 2 – Aug 27 | 70–110 |
| Scallions | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Jul 16 | 50–70 |
| Scarlet Runner Beans | Feb 26 | Apr 30 | May 7 | — | Jul 9 – Aug 13 | 60–80 |
| Shallot | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jul 23 – Sep 10 | 90–120 |
| Shiso | Mar 5 | Apr 30 | May 7 | — | Jul 2 – Aug 27 | 50–70 |
| Snap Peas | Feb 26 | Apr 30 | May 7 | — | Jul 2 – Aug 27 | 55–70 |
| Snow Peas | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 18 – Aug 13 | 50–65 |
| Soybeans | — | Apr 30 | — | — | Jul 23 – Sep 17 | 80–120 |
| Spaghetti Squash | Mar 19 | Apr 30 | May 7 | — | Aug 6 – Sep 3 | 85–100 |
| Spinach | Mar 19 | Apr 9 | Apr 23 | Aug 5 | May 28 – Jul 30 | 35–50 |
| Squash (Summer) | Mar 19 | Apr 30 | May 7 | — | Jun 25 – Aug 27 | 45–65 |
| Squash (Winter) | Mar 19 | Apr 30 | May 7 | — | Jul 30 – Sep 24 | 80–120 |
| Sunchoke | — | — | May 7 | — | Aug 27 – Oct 22 | 110–150 |
| Sweet Corn | — | Apr 30 | — | — | Jul 2 – Aug 13 | 60–90 |
| Sweet Potatoes | Feb 26 | Apr 30 | May 7 | — | Aug 6 – Sep 24 | 90–120 |
| Tatsoi | Mar 19 | Apr 9 | Apr 23 | Aug 5 | May 28 – Jul 2 | 35–50 |
| Tomatillo | Feb 26 | Apr 30 | May 7 | — | Jul 9 – Sep 17 | 60–85 |
| Tomatoes | Feb 26 | Apr 30 | May 7 | — | Jul 9 – Sep 17 | 60–85 |
| Turnip | — | Apr 9 | — | Aug 5 | May 21 – Jun 25 | 40–60 |
| Watercress | Mar 19 | Apr 9 | Apr 23 | Aug 5 | Jun 4 – Jul 9 | 40–60 |
| Watermelon | Mar 19 | Apr 30 | May 7 | — | Jul 16 – Sep 3 | 70–100 |
| Wax Beans | — | Apr 30 | — | — | Jun 25 – Aug 20 | 50–65 |
| Winter Melon | Feb 26 | Apr 30 | May 7 | — | Aug 6 – Sep 24 | 90–120 |
| Yard Long Beans | Feb 26 | Apr 30 | May 7 | — | Jul 2 – Aug 13 | 55–80 |
| Zucchini | Mar 19 | Apr 30 | May 7 | — | Jun 25 – Aug 20 | 45–60 |
🍓 Fruits to Grow in Osborne County
27 fruits that grow well in Zone 6a with planting dates for Osborne County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 14 | — | Aug 13 – Nov 26 | 90–180 |
| Aronia | — | — | May 14 | — | — | 730–1095 |
| Blackberries | — | — | May 14 | — | — | 365–730 |
| Blueberries | — | — | May 14 | — | — | 730–1095 |
| Boysenberries | — | — | May 14 | — | — | 365–730 |
| Cantaloupe | — | — | May 14 | — | Jul 23 – Aug 27 | 70–90 |
| Che Fruit | — | — | May 14 | — | — | 1095–1825 |
| Cranberries | — | — | May 14 | — | — | 730–1095 |
| Currants | — | — | May 14 | — | — | 730–1095 |
| Elderberries | — | — | May 14 | — | — | 730–1095 |
| Goji Berries | — | — | May 14 | — | — | 730–1095 |
| Gooseberries | — | — | May 14 | — | — | 730–1095 |
| Grapes | — | — | May 14 | — | — | 730–1095 |
| Ground Cherry | — | — | May 14 | — | Jul 23 – Sep 17 | 65–80 |
| Hardy Kiwi | — | — | May 14 | — | — | 1095–1825 |
| Haskaps | — | — | May 14 | — | — | 730–1095 |
| Honeydew | — | — | May 14 | — | Aug 6 – Sep 17 | 80–110 |
| Jostaberry | — | — | May 14 | — | — | 730–1095 |
| Lingonberries | — | — | May 14 | — | — | 730–1095 |
| Medlar | — | — | May 14 | — | — | 1095–1825 |
| Mulberries | — | — | May 14 | — | — | 730–1825 |
| Pawpaw | — | — | May 14 | — | — | 1095–2555 |
| Persimmon | — | — | May 14 | — | — | 1095–2555 |
| Quince | — | — | May 14 | — | — | 1095–1825 |
| Raspberries | — | — | May 14 | — | — | 365–730 |
| Serviceberries | — | — | May 14 | — | — | 730–1095 |
| Strawberries | — | — | May 14 | — | Aug 13 – Nov 26 | 90–365 |
🌿 Herbs to Grow in Osborne County
35 herbs that grow well in Zone 6a with planting dates for Osborne County.
Show all 35 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 19 | Apr 9 | Apr 16 | Aug 5 | — | 365–730 |
| Anise | Mar 19 | Apr 9 | Apr 16 | Aug 5 | Jul 16 – Oct 1 | 90–120 |
| Basil | Mar 5 | Apr 30 | May 7 | — | Jul 2 – Sep 3 | 50–75 |
| Bee Balm | — | — | Apr 30 | — | Jul 30 – Oct 15 | 90–120 |
| Borage | Mar 19 | Apr 9 | Apr 16 | Aug 5 | Jun 11 – Jul 30 | 50–60 |
| Caraway | Mar 19 | Apr 9 | Apr 16 | Aug 5 | — | 365–450 |
| Catnip | — | — | Apr 30 | — | Jul 2 – Sep 3 | 60–80 |
| Chamomile | Mar 19 | Apr 9 | Apr 16 | Aug 5 | Jun 18 – Aug 27 | 60–90 |
| Chervil | Mar 19 | Apr 9 | Apr 16 | Aug 5 | May 28 – Jul 30 | 40–60 |
| Chives | — | — | Apr 30 | — | Jul 2 – Sep 10 | 60–90 |
| Cilantro | Mar 19 | Apr 9 | Apr 16 | Aug 5 | May 28 – Jul 30 | 40–60 |
| Comfrey | — | — | Apr 30 | — | Jul 2 – Sep 10 | 60–90 |
| Cumin | Mar 19 | Apr 9 | Apr 16 | Aug 5 | Jul 30 – Oct 1 | 100–120 |
| Dill | Mar 19 | Apr 9 | Apr 16 | Aug 5 | May 28 – Jul 30 | 40–60 |
| Epazote | Mar 5 | Apr 30 | May 7 | — | Jun 25 – Aug 20 | 45–60 |
| Fennel (herb) | Mar 19 | Apr 9 | Apr 16 | Aug 5 | Jun 18 – Aug 27 | 60–90 |
| Feverfew | — | — | Apr 30 | — | Jul 30 – Oct 15 | 90–120 |
| Garlic Chives | — | — | Apr 30 | — | Jul 2 – Sep 10 | 60–90 |
| Horehound | — | — | Apr 30 | — | Jul 16 – Sep 10 | 75–90 |
| Hyssop | — | — | Apr 30 | — | Jul 9 – Sep 10 | 70–90 |
| Lemon Balm | — | — | Apr 30 | — | Jul 2 – Aug 20 | 60–70 |
| Lemon Thyme | — | — | Apr 30 | — | Jul 9 – Sep 10 | 70–90 |
| Lovage | — | — | Apr 30 | — | Jul 9 – Sep 10 | 70–90 |
| Marjoram | — | — | Apr 30 | — | Jul 2 – Sep 10 | 60–90 |
| Mint | — | — | Apr 30 | — | Jul 2 – Sep 10 | 60–90 |
| Oregano | — | — | Apr 30 | — | Jul 2 – Sep 10 | 60–90 |
| Parsley | Mar 19 | Apr 9 | Apr 16 | Aug 5 | Jun 18 – Aug 20 | 60–80 |
| Rue | — | — | Apr 30 | — | Jul 9 – Sep 10 | 70–90 |
| Sage | — | — | Apr 30 | — | Jul 16 – Sep 10 | 75–90 |
| Savory | — | — | Apr 30 | — | Jun 25 – Aug 20 | 50–70 |
| Sorrel | Mar 19 | Apr 9 | Apr 16 | Aug 5 | May 28 – Jul 30 | 40–60 |
| Tarragon | — | — | Apr 30 | — | Jul 2 – Sep 10 | 60–90 |
| Thai Basil | Mar 5 | Apr 30 | May 7 | — | Jul 2 – Sep 3 | 50–75 |
| Thyme | — | — | Apr 30 | — | Jul 9 – Sep 10 | 70–90 |
| Valerian | — | — | Apr 30 | — | Sep 3 – Nov 12 | 120–180 |
🌸 Flowers to Grow in Osborne County
53 flowers that grow well in Zone 6a with planting dates for Osborne County.
Show all 53 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 5 | Apr 23 | Apr 23 | — | Jun 18 – Sep 24 | 60–75 |
| Alliums | — | — | — | Sep 2 | Sep 30 – Oct 28 | 28–42 |
| Anemones | Mar 26 | — | Apr 23 | — | May 28 – Jun 25 | 90–120 |
| Astilbe | Feb 19 | — | Apr 30 | — | Jul 9 – Sep 17 | 70–100 |
| Bachelor's Button | Mar 12 | Mar 26 | Apr 23 | Sep 2 | Jun 25 – Sep 10 | 60–90 |
| Begonias | Feb 12 | — | Apr 30 | — | Jul 9 – Oct 8 | 70–90 |
| Black-eyed Susan | Feb 19 | Apr 23 | Apr 30 | — | Jul 16 – Oct 29 | 60–80 |
| Bleeding Hearts | Feb 19 | — | Apr 30 | — | Jun 25 – Jul 30 | 60–90 |
| Calendula | Mar 12 | Mar 26 | Apr 23 | — | Jun 11 – Sep 10 | 50–70 |
| California Poppy | — | Mar 26 | — | — | Jun 4 – Jul 16 | 60–90 |
| Celosia | Mar 19 | Apr 30 | Apr 30 | — | Jul 2 – Oct 15 | 60–90 |
| Columbine | Feb 19 | May 7 | May 7 | — | Jul 2 – Aug 6 | 70–100 |
| Coreopsis | Feb 19 | Apr 30 | Apr 30 | — | Jul 9 – Oct 29 | 60–80 |
| Cosmos | Mar 26 | Apr 23 | Apr 23 | — | Jul 2 – Oct 8 | 60–90 |
| Crocus | — | — | — | Sep 2 | Jul 22 – Aug 12 | 10–20 |
| Daffodils | — | — | — | Sep 2 | Jul 29 – Aug 19 | 20–40 |
| Dahlias | Mar 26 | Apr 30 | Apr 30 | — | Jul 16 – Oct 29 | 70–120 |
| Daylily | Feb 19 | — | Apr 30 | — | Jul 16 – Oct 29 | 60–90 |
| Dianthus | Feb 26 | Mar 26 | Apr 9 | — | May 28 – Aug 27 | 60–80 |
| Echinacea (Purple Coneflower) | Feb 19 | May 7 | May 7 | — | Jul 30 – Nov 5 | 70–90 |
| Foxglove | Feb 19 | Apr 30 | Apr 30 | — | Jun 25 – Jul 30 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 5 | Apr 30 | Apr 30 | — | Jul 9 – Nov 12 | 70–100 |
| Geraniums | Feb 12 | — | Apr 30 | — | Jul 9 – Oct 8 | 70–100 |
| Gladiolus | — | Apr 23 | Apr 23 | — | Jul 9 – Oct 22 | 70–100 |
| Hostas | Feb 12 | — | Apr 30 | — | Jul 16 – Oct 29 | 60–90 |
| Hyacinths | — | — | — | Sep 2 | Aug 19 – Sep 9 | 14–28 |
| Hydrangeas | Feb 12 | — | Apr 30 | — | Jul 9 – Oct 15 | 90–150 |
| Impatiens | Feb 26 | — | Apr 30 | — | Jul 9 – Oct 15 | 60–75 |
| Irises | — | Division | Apr 30 | — | Jun 25 – Jul 23 | 60–100 |
| Larkspur | — | Mar 26 | — | — | Jun 4 – Jul 30 | 60–90 |
| Lavender | Feb 12 | — | May 7 | — | Jul 16 – Sep 10 | 90–120 |
| Lilies | — | Division | Apr 30 | — | Jul 9 – Oct 15 | 70–120 |
| Lobelia | Feb 19 | — | Apr 9 | — | Jun 4 – Aug 27 | 70–80 |
| Lupine | Feb 19 | Apr 30 | Apr 30 | — | Jun 25 – Jul 30 | 75–100 |
| Marigolds | Mar 12 | Apr 30 | Apr 30 | — | Jun 25 – Sep 24 | 50–70 |
| Nasturtium | Mar 26 | Apr 30 | Apr 30 | — | Jun 25 – Oct 15 | 55–65 |
| Pansy | Feb 12 | — | Apr 23 | Aug 19 | Jun 18 – Aug 20 | 70–90 |
| Peonies | — | Division | Apr 30 | — | Jul 2 – Aug 6 | 90–120 |
| Petunia | Feb 26 | — | Apr 30 | — | Jul 9 – Oct 15 | 70–90 |
| Phlox | Feb 19 | Apr 30 | Apr 30 | — | Jul 9 – Oct 1 | 80–110 |
| Portulaca | Mar 19 | Apr 30 | Apr 30 | — | Jun 18 – Oct 1 | 50–70 |
| Ranunculus | Mar 12 | — | Apr 23 | — | Jun 4 – Jul 2 | 90–120 |
| Roses | Feb 12 | — | Apr 30 | — | Jul 9 – Oct 29 | 90–180 |
| Salvia | Feb 19 | — | Apr 30 | — | Jul 9 – Oct 15 | 70–90 |
| Sedum (Stonecrop) | Feb 19 | — | Apr 30 | — | Aug 20 – Nov 5 | 60–90 |
| Snapdragon | Feb 12 | Apr 2 | Apr 23 | — | Jul 2 – Sep 10 | 70–100 |
| Sunflower | Apr 2 | Apr 30 | Apr 30 | — | Jul 23 – Oct 15 | 70–100 |
| Sweet Alyssum | Mar 5 | Apr 2 | Apr 23 | — | Jun 4 – Aug 13 | 45–60 |
| Sweet Pea | Mar 12 | Mar 19 | Apr 23 | — | Jul 9 – Sep 17 | 65–85 |
| Tulips | — | — | — | Sep 2 | Aug 12 – Sep 9 | 15–30 |
| Vinca (Annual) | Feb 12 | — | Apr 30 | — | Jul 9 – Oct 15 | 70–90 |
| Yarrow | Feb 19 | Apr 23 | Apr 30 | — | Jul 9 – Oct 29 | 60–90 |
| Zinnia | Mar 26 | Apr 30 | Apr 30 | — | Jul 9 – Oct 15 | 60–70 |
Monthly Planting Guide for Osborne County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Osborne County.
Frequently Asked Questions
What planting zone is Osborne County, KS?
Osborne County is in USDA Hardiness Zone 6a. 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 Osborne County, KS?
Based on 31 years of NOAA weather station data, the median last spring frost in Osborne County falls around April 23. In 8 out of 10 years, last frost lands between April 10 and May 7 — a 26-day window of variability. Use May 7 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Osborne County, KS?
The median first fall frost in Osborne County arrives around October 14. In cold years it can arrive as early as September 30; in mild years as late as October 26. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Osborne County?
Osborne County has a frost-free growing season of approximately 174 days. This is enough time for most warm-season crops including tomatoes, peppers, and squash with proper timing.
What is the soil like in Osborne County for gardening?
Osborne County has predominantly Loam soil with a pH range of 6.8–7.5 and Moderately Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Osborne County?
Osborne County has commercial agriculture that includes Corn, Wheat, Soybeans, Cattle, Sorghum. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Osborne County a good location for home gardening?
Osborne County scores 71/100 (Good) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. This is an above-average location for home gardening with relatively predictable growing conditions.
Your Osborne County Garden Planner — Free
A 22-page printable planner built for Osborne County (Zone 6a). 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