Marion County, KS — Planting Guide
Marion County is in USDA Zone 6b. The average last spring frost is April 14 and the first fall frost is October 24, giving you a growing season of approximately 193 days.
At an elevation of 898 ft, Marion County receives approximately 26.4 in of rainfall annually. Summer highs average 90°F with winter lows around 20°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 29 days year to year — ranging from March 28 in warm years to April 26 in cold years. Marion County scores 75/100 (Good) on the Microclimate Index.
🌡️ Zone
6b (-5°F to 0°F min)
❄️ Last Frost
April 14
🍂 First Frost
October 24
📅 Growing Season
193 days
⛰️ Elevation
898 ft
🌧️ Annual Rainfall
26.4 in
Monthly Watering Calendar for Marion County
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
Why this matters: The 1-inch-per-week rule applies to most vegetable crops. Marion County averages 26" a year — divide by 52 and compare to that 1" target. Some months are above, some below; that's where the calendar earns its keep.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 0.6 in | 3 days | — | None |
| Feb | 0.8 in | 5 days | — | None |
| Mar | 1.9 in | 5 days | 2.4 in | High |
| Apr | 2.7 in | 8 days | 1.6 in | High |
| May | 3.5 in | 10 days | 0.8 in | Moderate |
| Jun | 4.4 in | 8 days | — | Low |
| Jul | 3.2 in | 7 days | 1.1 in | Moderate |
| Aug | 3.3 in | 7 days | 1 in | Moderate |
| Sep | 2.7 in | 6 days | 1.6 in | High |
| Oct | 1.8 in | 5 days | 2.5 in | High |
| Nov | 0.9 in | 4 days | — | None |
| Dec | 0.6 in | 4 days | — | None |
Annual total: 26.4 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.
Marion County Soil Profile
Soil Type
Loam
Soil pH
6.2-7.5
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) | Apr 26 | Nov 4 | 192 days |
| Cautious | Apr 18 | Oct 27 | 192 days |
| Average year | Apr 14 | Oct 24 | 193 days |
| Optimistic | Apr 9 | Oct 17 | 191 days |
| Aggressive (risky) | Mar 28 | Oct 7 | 193 days |
Not very — frost dates can vary by ±29 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Gardening Difficulty Score
Marion County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Marion 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 Marion County's climate and soil.
County Extension Office
Marion 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 Marion County
Finding local nurseries & garden centers in Marion County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Marion 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 Marion County KS" or "garden center Marion 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 Marion County KS" or check your extension office and local parks department. Facebook groups like "Marion 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 Marion County
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
The practical takeaway: Plants use day length as their seasonal clock. Some crops flower when days lengthen (most flowers), some when days shorten (chrysanthemums, soybeans). Marion County's curve is the timing layer beneath everything you grow.
Longest Day
14.7 hours
Summer solstice daylight
Shortest Day
9.3 hours
Winter solstice daylight
Peak Sun Hours
10.4 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 | 5 hr | Short day |
| February | 10.6 hr | 6.1 hr | Short day |
| March | 11.7 hr | 6.8 hr | Short day |
| April | 13 hr | 8.3 hr | Neutral |
| May | 14.1 hr | 9.1 hr | Long day |
| June | 14.7 hr | 9.9 hr | Long day |
| July | 14.4 hr | 10.4 hr | Long day |
| August | 13.5 hr | 9.6 hr | Neutral |
| September | 12.2 hr | 8 hr | Neutral |
| October | 11 hr | 7.2 hr | Short day |
| November | 9.9 hr | 5.8 hr | Short day |
| December | 9.3 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 Marion County
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
For new gardeners: Soil temperature predicts plant emergence better than calendar dates. Marion 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 May through Oct.
Best Month to Compost
Jun
Microbial activity peaks when soil is warm.
Active Composting
8 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 29°F | 39°F | ❄️ Dormant | ~36 weeks |
| Feb | 31°F | 39°F | ❄️ Dormant | ~36 weeks |
| Mar | 42°F | 42°F | 🐢 Slow | ~24 weeks |
| Apr | 52°F | 52°F | ♻️ Active | ~14 weeks |
| May | 62°F | 61°F | ♻️ Active | ~14 weeks |
| Jun | 75°F | 68°F | 🔥 Peak | ~8 weeks |
| Jul | 81°F | 75°F | 🔥 Peak | ~8 weeks |
| Aug | 84°F | 79°F | 🔥 Peak | ~8 weeks |
| Sep | 77°F | 75°F | 🔥 Peak | ~8 weeks |
| Oct | 65°F | 67°F | ♻️ Active | ~14 weeks |
| Nov | 50°F | 55°F | ♻️ Active | ~14 weeks |
| Dec | 37°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 Marion County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Why it matters: Two gardeners can grow identical seeds and get wildly different results based on pest pressure alone. Marion 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 | Apr, May, Jun, Jul, Aug, Sep |
| Japanese beetles | High | Jun, Jul, Aug |
| Squash vine borers | Moderate | Jun, Jul |
| Tomato hornworms | Moderate | Jun, Jul, Aug |
| Cucumber beetles | Low | May, Jun, Jul |
| Stink bugs | Moderate | Jun, Jul, Aug, Sep |
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 Marion County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
The practical takeaway: Cover crops do four things at once: fix nitrogen (legumes), suppress weeds (any), prevent erosion, and add organic matter when chopped down. Marion County's seasonal pattern determines which species fit which gap.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 24 | Aug 22 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | Apr 21 | Aug 22 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 20 | Aug 15 | ✓ 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 9 | Oct 3 | — | 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 16 | Mar 24 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Aug 19 | Mar 24 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Sep 7 | Mar 24 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 8 | Mar 24 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 26 | Mar 24 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Aug 1 | Mar 24 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 16 | Mar 31 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Marion County
For new gardeners: A 10 mph wind doesn't feel like much, but it triples leaf transpiration vs. still air. Marion County's 11.9 mph average means most days are gentle on plants, but consider how a 20+ mph spring gust would affect a flat of seedlings hardened off too quickly.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 15 mph Summer: 12 mph
Fall: 12 mph Winter: 16 mph
Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.
Windbreak Benefit
7.4/10
Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.
Frost Pocket Risk
Low
Relatively flat terrain (216 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Marion County
How much water you can collect, when to collect it, and what size system you need for your garden.
Why this matters: A 1,000 sq ft roof captures about 600 gallons from a single 1" rainfall. Marion County gets 26" of rain a year — a couple of well-placed rain barrels can cover most summer watering. In dry climates the math's even better: every captured gallon is one you don't buy.
Annual Collection
13,157 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
7 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 2,250 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, 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 26.4 inches of rain per year
- A 1,000 sq ft roof can collect roughly 13,157 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jan, Feb, Nov)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Marion County
Soil Type
Loam
Soil pH 6.2–7.5 · Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 3.5/10
Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (26.4 in. annual rainfall)
Season Tips
193-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.
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 Marion County
107 vegetables that grow well in Zone 6b with planting dates for Marion County.
Show all 107 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 10 | Apr 21 | Apr 28 | — | Jul 21 – Aug 25 | 80–100 |
| Amaranth | Feb 17 | Apr 21 | Apr 28 | — | Jul 28 – Sep 15 | 90–120 |
| Arugula | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 19 – Jul 21 | 30–50 |
| Asparagus | — | — | Apr 28 | — | — | 730–1095 |
| Beets | — | Mar 31 | — | Aug 15 | May 26 – Jun 23 | 50–70 |
| Belgian Endive | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Aug 4 – Sep 29 | 110–150 |
| Bitter Melon | Feb 17 | Apr 21 | Apr 28 | — | Jun 30 – Aug 11 | 60–90 |
| Black Beans | — | Apr 21 | — | — | Jul 21 – Sep 8 | 90–120 |
| Bok Choy | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 26 – Jun 30 | 40–60 |
| Broccoli | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 16 – Jul 28 | 60–90 |
| Broccoli Rabe | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 26 – Jun 30 | 40–60 |
| Brussels Sprouts | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jul 14 – Sep 8 | 90–130 |
| Butternut Squash | Mar 10 | Apr 21 | Apr 28 | — | Jul 28 – Sep 1 | 85–110 |
| Cabbage | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 16 – Aug 11 | 60–100 |
| Calabash | Feb 17 | Apr 21 | Apr 28 | — | Jul 21 – Sep 15 | 80–120 |
| Carrots | — | Mar 31 | — | Aug 15 | Jun 2 – Jul 7 | 60–80 |
| Cauliflower | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Aug 11 | 55–100 |
| Celeriac | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jul 28 – Sep 1 | 100–120 |
| Celery | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jul 7 – Sep 1 | 80–120 |
| Celtuce | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 16 – Jul 28 | 60–90 |
| Chard | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Jul 28 | 50–60 |
| Chickpeas | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jul 7 – Aug 18 | 80–110 |
| Chicory | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 16 – Jul 28 | 60–85 |
| Chinese Cabbage | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Jul 7 | 50–70 |
| Christmas Lima Beans | Feb 17 | Apr 21 | Apr 28 | — | Jul 21 – Aug 25 | 80–100 |
| Collard Greens | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Aug 11 | 55–75 |
| Corn | — | Apr 21 | — | — | Jun 23 – Aug 18 | 60–100 |
| Cowpeas | — | Apr 21 | — | — | Jun 23 – Aug 4 | 60–90 |
| Cress | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Apr 28 – May 19 | 14–21 |
| Crookneck Squash | Mar 10 | Apr 21 | Apr 28 | — | Jun 16 – Jul 14 | 45–60 |
| Crosne | — | Mar 31 | — | Aug 15 | Sep 1 – Oct 13 | 150–200 |
| Cucumber | Mar 10 | Apr 21 | Apr 28 | — | Jun 23 – Aug 18 | 50–70 |
| Daikon | — | Mar 31 | — | Aug 15 | May 26 – Jun 23 | 50–70 |
| Delicata Squash | Mar 10 | Apr 21 | Apr 28 | — | Jul 21 – Aug 25 | 80–100 |
| Edamame | — | Apr 21 | — | — | Jul 7 – Aug 18 | 75–100 |
| Eggplant | Feb 3 | Apr 21 | Apr 28 | — | Jul 7 – Sep 8 | 65–85 |
| Endive | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 2 – Jul 7 | 45–65 |
| Escarole | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Jul 7 | 50–70 |
| Fava Beans | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 30 – Aug 11 | 75–100 |
| Fennel | Feb 17 | Apr 21 | Apr 28 | — | Jun 30 – Aug 11 | 60–90 |
| Garlic | — | — | — | Sep 12 | Dec 12 – Mar 27 | 90–240 |
| Green Beans | — | Apr 21 | — | — | Jun 16 – Aug 11 | 50–65 |
| Horseradish | — | — | Apr 28 | — | Sep 1 – Nov 10 | 120–180 |
| Hot Peppers | Feb 3 | Apr 21 | Apr 28 | — | Jul 7 – Oct 13 | 70–120 |
| Hubbard Squash | Mar 10 | Apr 21 | Apr 28 | — | Aug 11 – Sep 15 | 100–120 |
| Kabocha | Mar 10 | Apr 21 | Apr 28 | — | Jul 28 – Aug 25 | 85–100 |
| Kai Lan | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 2 – Jun 30 | 45–60 |
| Kale | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Aug 4 | 50–70 |
| Kidney Beans | — | Apr 21 | — | — | Jul 21 – Aug 25 | 85–110 |
| Kohlrabi | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 2 – Jul 7 | 45–65 |
| Komatsuna | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 19 – Jun 23 | 35–50 |
| Leeks | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jul 14 – Sep 29 | 90–150 |
| Lentils | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jul 7 – Aug 18 | 80–110 |
| Lettuce | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 19 – Jul 28 | 30–60 |
| Lima Beans | — | Apr 21 | — | — | Jun 23 – Aug 4 | 60–90 |
| Loofah | Feb 17 | Apr 21 | Apr 28 | — | Aug 11 – Oct 13 | 100–150 |
| Luffa | Feb 17 | Apr 21 | Apr 28 | — | Jul 28 – Oct 13 | 90–150 |
| Mache | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 26 – Jun 30 | 40–60 |
| Melon | Mar 10 | Apr 21 | Apr 28 | — | Jul 7 – Aug 25 | 70–100 |
| Microgreens | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Apr 21 – May 19 | 7–21 |
| Mitsuba | Mar 10 | Mar 31 | Apr 7 | Aug 15 | Jun 2 – Jul 28 | 50–70 |
| Mizuna | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 19 – Jun 16 | 30–45 |
| Mustard Greens | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 19 – Jul 21 | 30–50 |
| Napa Cabbage | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Jul 14 | 55–75 |
| New Zealand Spinach | Feb 17 | Apr 21 | Apr 28 | — | Jun 23 – Jul 21 | 55–70 |
| Okra | Feb 17 | Apr 21 | Apr 28 | — | Jun 23 – Aug 18 | 50–65 |
| Onion | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jul 14 – Sep 1 | 90–120 |
| Pac Choi | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 26 – Jun 23 | 40–55 |
| Parsnip | — | Mar 31 | — | Aug 15 | Jul 14 – Aug 25 | 100–130 |
| Patty Pan Squash | Mar 10 | Apr 21 | Apr 28 | — | Jun 16 – Jul 14 | 45–60 |
| Peas | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Aug 4 | 55–70 |
| Peppers | Feb 3 | Apr 21 | Apr 28 | — | Jun 30 – Sep 8 | 60–90 |
| Pole Beans | Feb 17 | Apr 21 | Apr 28 | — | Jun 23 – Aug 18 | 55–70 |
| Potatoes | Feb 17 | Apr 21 | Apr 28 | — | Jul 7 – Sep 15 | 70–120 |
| Pumpkin | Mar 10 | Apr 21 | Apr 28 | — | Jul 28 – Sep 15 | 85–120 |
| Purslane | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 26 – Jun 30 | 40–60 |
| Radicchio | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 16 – Jul 21 | 60–80 |
| Radish | — | Mar 31 | — | Aug 15 | Apr 28 – May 19 | 22–35 |
| Rhubarb | — | — | May 5 | — | — | 365–730 |
| Romanesco | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 30 – Aug 11 | 75–100 |
| Rutabaga | — | Mar 31 | — | Aug 15 | Jun 23 – Jul 28 | 80–100 |
| Salsify | — | Mar 31 | — | Aug 15 | Jul 14 – Aug 25 | 100–130 |
| Savoy Cabbage | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 23 – Aug 18 | 70–110 |
| Scallions | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Jul 7 | 50–70 |
| Scarlet Runner Beans | Feb 17 | Apr 21 | Apr 28 | — | Jun 30 – Aug 4 | 60–80 |
| Shallot | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jul 14 – Sep 1 | 90–120 |
| Shiso | Feb 24 | Apr 21 | Apr 28 | — | Jun 23 – Aug 18 | 50–70 |
| Snap Peas | Feb 17 | Apr 21 | Apr 28 | — | Jun 23 – Aug 18 | 55–70 |
| Snow Peas | Mar 10 | Mar 31 | Apr 14 | Aug 15 | Jun 9 – Aug 4 | 50–65 |
| Soybeans | — | Apr 21 | — | — | Jul 14 – Sep 8 | 80–120 |
| Spaghetti Squash | Mar 10 | Apr 21 | Apr 28 | — | Jul 28 – Aug 25 | 85–100 |
| Spinach | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 19 – Jul 21 | 35–50 |
| Squash (Summer) | Mar 10 | Apr 21 | Apr 28 | — | Jun 16 – Aug 18 | 45–65 |
| Squash (Winter) | Mar 10 | Apr 21 | Apr 28 | — | Jul 21 – Sep 15 | 80–120 |
| Sunchoke | — | — | Apr 28 | — | Aug 18 – Oct 13 | 110–150 |
| Sweet Corn | — | Apr 21 | — | — | Jun 23 – Aug 4 | 60–90 |
| Sweet Potatoes | Feb 17 | Apr 21 | Apr 28 | — | Jul 28 – Sep 15 | 90–120 |
| Tatsoi | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 19 – Jun 23 | 35–50 |
| Tomatillo | Feb 17 | Apr 21 | Apr 28 | — | Jun 30 – Sep 8 | 60–85 |
| Tomatoes | Feb 17 | Apr 21 | Apr 28 | — | Jun 30 – Sep 8 | 60–85 |
| Turnip | — | Mar 31 | — | Aug 15 | May 12 – Jun 16 | 40–60 |
| Watercress | Mar 10 | Mar 31 | Apr 14 | Aug 15 | May 26 – Jun 30 | 40–60 |
| Watermelon | Mar 10 | Apr 21 | Apr 28 | — | Jul 7 – Aug 25 | 70–100 |
| Wax Beans | — | Apr 21 | — | — | Jun 16 – Aug 11 | 50–65 |
| Winter Melon | Feb 17 | Apr 21 | Apr 28 | — | Jul 28 – Sep 15 | 90–120 |
| Yard Long Beans | Feb 17 | Apr 21 | Apr 28 | — | Jun 23 – Aug 4 | 55–80 |
| Zucchini | Mar 10 | Apr 21 | Apr 28 | — | Jun 16 – Aug 11 | 45–60 |
🍓 Fruits to Grow in Marion County
27 fruits that grow well in Zone 6b with planting dates for Marion County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 5 | — | Aug 4 – Nov 17 | 90–180 |
| Aronia | — | — | May 5 | — | — | 730–1095 |
| Blackberries | — | — | May 5 | — | — | 365–730 |
| Blueberries | — | — | May 5 | — | — | 730–1095 |
| Boysenberries | — | — | May 5 | — | — | 365–730 |
| Cantaloupe | — | — | May 5 | — | Jul 14 – Aug 18 | 70–90 |
| Che Fruit | — | — | May 5 | — | — | 1095–1825 |
| Cranberries | — | — | May 5 | — | — | 730–1095 |
| Currants | — | — | May 5 | — | — | 730–1095 |
| Elderberries | — | — | May 5 | — | — | 730–1095 |
| Goji Berries | — | — | May 5 | — | — | 730–1095 |
| Gooseberries | — | — | May 5 | — | — | 730–1095 |
| Grapes | — | — | May 5 | — | — | 730–1095 |
| Ground Cherry | — | — | May 5 | — | Jul 14 – Sep 8 | 65–80 |
| Hardy Kiwi | — | — | May 5 | — | — | 1095–1825 |
| Haskaps | — | — | May 5 | — | — | 730–1095 |
| Honeydew | — | — | May 5 | — | Jul 28 – Sep 8 | 80–110 |
| Jostaberry | — | — | May 5 | — | — | 730–1095 |
| Lingonberries | — | — | May 5 | — | — | 730–1095 |
| Medlar | — | — | May 5 | — | — | 1095–1825 |
| Mulberries | — | — | May 5 | — | — | 730–1825 |
| Pawpaw | — | — | May 5 | — | — | 1095–2555 |
| Persimmon | — | — | May 5 | — | — | 1095–2555 |
| Quince | — | — | May 5 | — | — | 1095–1825 |
| Raspberries | — | — | May 5 | — | — | 365–730 |
| Serviceberries | — | — | May 5 | — | — | 730–1095 |
| Strawberries | — | — | May 5 | — | Aug 4 – Nov 17 | 90–365 |
🌿 Herbs to Grow in Marion County
35 herbs that grow well in Zone 6b with planting dates for Marion County.
Show all 35 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 10 | Mar 31 | Apr 7 | Aug 15 | — | 365–730 |
| Anise | Mar 10 | Mar 31 | Apr 7 | Aug 15 | Jul 7 – Sep 22 | 90–120 |
| Basil | Feb 24 | Apr 21 | Apr 28 | — | Jun 23 – Aug 25 | 50–75 |
| Bee Balm | — | — | Apr 21 | — | Jul 21 – Oct 6 | 90–120 |
| Borage | Mar 10 | Mar 31 | Apr 7 | Aug 15 | Jun 2 – Jul 21 | 50–60 |
| Caraway | Mar 10 | Mar 31 | Apr 7 | Aug 15 | — | 365–450 |
| Catnip | — | — | Apr 21 | — | Jun 23 – Aug 25 | 60–80 |
| Chamomile | Mar 10 | Mar 31 | Apr 7 | Aug 15 | Jun 9 – Aug 18 | 60–90 |
| Chervil | Mar 10 | Mar 31 | Apr 7 | Aug 15 | May 19 – Jul 21 | 40–60 |
| Chives | — | — | Apr 21 | — | Jun 23 – Sep 1 | 60–90 |
| Cilantro | Mar 10 | Mar 31 | Apr 7 | Aug 15 | May 19 – Jul 21 | 40–60 |
| Comfrey | — | — | Apr 21 | — | Jun 23 – Sep 1 | 60–90 |
| Cumin | Mar 10 | Mar 31 | Apr 7 | Aug 15 | Jul 21 – Sep 22 | 100–120 |
| Dill | Mar 10 | Mar 31 | Apr 7 | Aug 15 | May 19 – Jul 21 | 40–60 |
| Epazote | Feb 24 | Apr 21 | Apr 28 | — | Jun 16 – Aug 11 | 45–60 |
| Fennel (herb) | Mar 10 | Mar 31 | Apr 7 | Aug 15 | Jun 9 – Aug 18 | 60–90 |
| Feverfew | — | — | Apr 21 | — | Jul 21 – Oct 6 | 90–120 |
| Garlic Chives | — | — | Apr 21 | — | Jun 23 – Sep 1 | 60–90 |
| Horehound | — | — | Apr 21 | — | Jul 7 – Sep 1 | 75–90 |
| Hyssop | — | — | Apr 21 | — | Jun 30 – Sep 1 | 70–90 |
| Lemon Balm | — | — | Apr 21 | — | Jun 23 – Aug 11 | 60–70 |
| Lemon Thyme | — | — | Apr 21 | — | Jun 30 – Sep 1 | 70–90 |
| Lovage | — | — | Apr 21 | — | Jun 30 – Sep 1 | 70–90 |
| Marjoram | — | — | Apr 21 | — | Jun 23 – Sep 1 | 60–90 |
| Mint | — | — | Apr 21 | — | Jun 23 – Sep 1 | 60–90 |
| Oregano | — | — | Apr 21 | — | Jun 23 – Sep 1 | 60–90 |
| Parsley | Mar 10 | Mar 31 | Apr 7 | Aug 15 | Jun 9 – Aug 11 | 60–80 |
| Rue | — | — | Apr 21 | — | Jun 30 – Sep 1 | 70–90 |
| Sage | — | — | Apr 21 | — | Jul 7 – Sep 1 | 75–90 |
| Savory | — | — | Apr 21 | — | Jun 16 – Aug 11 | 50–70 |
| Sorrel | Mar 10 | Mar 31 | Apr 7 | Aug 15 | May 19 – Jul 21 | 40–60 |
| Tarragon | — | — | Apr 21 | — | Jun 23 – Sep 1 | 60–90 |
| Thai Basil | Feb 24 | Apr 21 | Apr 28 | — | Jun 23 – Aug 25 | 50–75 |
| Thyme | — | — | Apr 21 | — | Jun 30 – Sep 1 | 70–90 |
| Valerian | — | — | Apr 21 | — | Aug 25 – Nov 3 | 120–180 |
🌸 Flowers to Grow in Marion County
53 flowers that grow well in Zone 6b with planting dates for Marion County.
Show all 53 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Feb 24 | Apr 14 | Apr 14 | — | Jun 9 – Sep 22 | 60–75 |
| Alliums | — | — | — | Sep 12 | Oct 10 – Nov 7 | 28–42 |
| Anemones | Mar 17 | — | Apr 14 | — | May 12 – Jun 9 | 90–120 |
| Astilbe | Feb 10 | — | Apr 21 | — | Jun 30 – Sep 8 | 70–100 |
| Bachelor's Button | Mar 3 | Mar 17 | Apr 14 | Sep 12 | Jun 16 – Sep 8 | 60–90 |
| Begonias | Feb 3 | — | Apr 21 | — | Jun 30 – Oct 6 | 70–90 |
| Black-eyed Susan | Feb 10 | Apr 14 | Apr 21 | — | Jul 7 – Oct 27 | 60–80 |
| Bleeding Hearts | Feb 10 | — | Apr 21 | — | Jun 16 – Jul 21 | 60–90 |
| Calendula | Mar 3 | Mar 17 | Apr 14 | — | Jun 2 – Sep 8 | 50–70 |
| California Poppy | — | Mar 17 | — | — | May 26 – Jul 21 | 60–90 |
| Celosia | Mar 10 | Apr 21 | Apr 21 | — | Jun 23 – Oct 13 | 60–90 |
| Columbine | Feb 10 | Apr 21 | Apr 21 | — | Jun 16 – Jul 21 | 70–100 |
| Coreopsis | Feb 10 | Apr 14 | Apr 21 | — | Jun 30 – Oct 27 | 60–80 |
| Cosmos | Mar 17 | Apr 14 | Apr 14 | — | Jun 23 – Oct 6 | 60–90 |
| Crocus | — | — | — | Sep 12 | Aug 1 – Aug 22 | 10–20 |
| Daffodils | — | — | — | Sep 12 | Aug 8 – Aug 29 | 20–40 |
| Dahlias | Mar 17 | Apr 21 | Apr 21 | — | Jul 7 – Oct 27 | 70–120 |
| Daylily | Feb 10 | — | Apr 21 | — | Jul 7 – Oct 27 | 60–90 |
| Dianthus | Feb 17 | Mar 17 | Mar 24 | — | May 12 – Aug 11 | 60–80 |
| Echinacea (Purple Coneflower) | Feb 10 | Apr 21 | Apr 21 | — | Jul 7 – Oct 27 | 70–90 |
| Foxglove | Feb 10 | Apr 21 | Apr 21 | — | Jun 16 – Jul 21 | 80–120 |
| Gaillardia (Blanket Flower) | Feb 24 | Apr 21 | Apr 21 | — | Jun 30 – Nov 3 | 70–100 |
| Geraniums | Feb 3 | — | Apr 21 | — | Jun 30 – Oct 6 | 70–100 |
| Gladiolus | — | Apr 14 | Apr 14 | — | Jun 30 – Oct 20 | 70–100 |
| Hostas | Feb 3 | — | Apr 21 | — | Jul 7 – Oct 27 | 60–90 |
| Hyacinths | — | — | — | Sep 12 | Aug 29 – Sep 19 | 14–28 |
| Hydrangeas | Feb 3 | — | Apr 21 | — | Jun 30 – Oct 13 | 90–150 |
| Impatiens | Feb 17 | — | Apr 21 | — | Jun 30 – Oct 13 | 60–75 |
| Irises | — | Division | Apr 21 | — | Jun 16 – Jul 14 | 60–100 |
| Larkspur | — | Mar 17 | — | — | May 26 – Jul 21 | 60–90 |
| Lavender | Feb 3 | — | Apr 28 | — | Jul 7 – Sep 1 | 90–120 |
| Lilies | — | Division | Apr 21 | — | Jun 30 – Oct 6 | 70–120 |
| Lobelia | Feb 10 | — | Mar 31 | — | May 26 – Aug 18 | 70–80 |
| Lupine | Feb 10 | Apr 21 | Apr 21 | — | Jun 16 – Jul 21 | 75–100 |
| Marigolds | Mar 3 | Apr 14 | Apr 14 | — | Jun 9 – Sep 15 | 50–70 |
| Nasturtium | Mar 17 | Apr 14 | Apr 14 | — | Jun 9 – Oct 6 | 55–65 |
| Pansy | Feb 3 | — | Apr 14 | Aug 29 | Jun 9 – Aug 18 | 70–90 |
| Peonies | — | Division | Apr 21 | — | Jun 23 – Jul 28 | 90–120 |
| Petunia | Feb 17 | — | Apr 21 | — | Jun 30 – Oct 13 | 70–90 |
| Phlox | Feb 10 | Apr 21 | Apr 21 | — | Jun 30 – Sep 22 | 80–110 |
| Portulaca | Mar 10 | Apr 21 | Apr 21 | — | Jun 9 – Sep 29 | 50–70 |
| Ranunculus | Mar 3 | — | Apr 14 | — | May 19 – Jun 16 | 90–120 |
| Roses | Feb 3 | — | Apr 21 | — | Jun 30 – Oct 27 | 90–180 |
| Salvia | Feb 10 | — | Apr 14 | — | Jun 23 – Oct 6 | 70–90 |
| Sedum (Stonecrop) | Feb 10 | — | Apr 21 | — | Aug 11 – Nov 3 | 60–90 |
| Snapdragon | Feb 3 | Mar 24 | Apr 14 | — | Jun 23 – Sep 8 | 70–100 |
| Sunflower | Mar 24 | Apr 14 | Apr 14 | — | Jul 7 – Oct 6 | 70–100 |
| Sweet Alyssum | Mar 3 | Mar 24 | Apr 14 | — | May 26 – Aug 11 | 45–60 |
| Sweet Pea | Mar 3 | Mar 10 | Apr 14 | — | Jun 30 – Sep 8 | 65–85 |
| Tulips | — | — | — | Sep 19 | Aug 29 – Sep 26 | 15–30 |
| Vinca (Annual) | Feb 3 | — | Apr 21 | — | Jun 30 – Oct 13 | 70–90 |
| Yarrow | Feb 10 | Apr 14 | Apr 21 | — | Jun 30 – Oct 27 | 60–90 |
| Zinnia | Mar 17 | Apr 14 | Apr 14 | — | Jun 23 – Sep 29 | 60–70 |
Monthly Planting Guide for Marion County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Marion County.
Frequently Asked Questions
What planting zone is Marion County, KS?
Marion 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 Marion County, KS?
Based on 31 years of NOAA weather station data, the median last spring frost in Marion County falls around April 14. In 8 out of 10 years, last frost lands between March 28 and April 26 — a 29-day window of variability. Use April 26 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Marion County, KS?
The median first fall frost in Marion County arrives around October 24. In cold years it can arrive as early as October 7; in mild years as late as November 4. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Marion County?
Marion County has a frost-free growing season of approximately 193 days. This is enough time for most warm-season crops including tomatoes, peppers, and squash with proper timing.
What is the soil like in Marion County for gardening?
Marion County has predominantly Loam soil with a pH range of 6.2–7.5 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Marion County?
Marion County has commercial agriculture that includes Wheat, Corn, Soybeans. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Marion County a good location for home gardening?
Marion County scores 75/100 (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 Marion County Garden Planner — Free
A 22-page printable planner built for Marion County (Zone 6b). 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