Clinton County, MO — Planting Guide
Your July planting checklist for Clinton County, Missouri
Your Clinton County, Missouri garden is entering a new phase. Here's what's on the schedule for July and why each task matters now.
-
Pick basil, carrots, and cucumber
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
Coming up in August — start thinking about
- First harvests: basil, cucumber, and green beans
- Fall sowing: carrots, kale, and lettuce
Clinton County is in USDA Zone 6a. The average last spring frost is April 13 and the first fall frost is October 25, giving you a growing season of approximately 195 days.
At an elevation of 525 ft, Clinton County receives approximately 36.7 in of rainfall annually. Summer highs average 83°F with winter lows around 16°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 31 days year to year — ranging from March 25 in warm years to April 26 in cold years. Clinton County scores 75/100 (Good) on the Microclimate Index.
🌡️ Zone
6a (-10°F to -5°F min)
❄️ Last Frost
April 13
🍂 First Frost
October 25
📅 Growing Season
195 days
⛰️ Elevation
525 ft
🌧️ Annual Rainfall
36.7 in
Monthly Watering Calendar for Clinton County
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
Why it matters: Watering math is simple: 1 inch of rainfall delivers ~600 gallons to a 1,000 sq ft garden. Clinton County's 37" annual rainfall covers some months entirely; others need a few hours of drip irrigation per week. The calendar tells you which is which.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 1.6 in | 8 days | — | None |
| Feb | 1.6 in | 6 days | — | None |
| Mar | 2.4 in | 9 days | — | None |
| Apr | 3.2 in | 11 days | 1.1 in | Moderate |
| May | 4.9 in | 10 days | — | Low |
| Jun | 4.5 in | 9 days | — | Low |
| Jul | 3.9 in | 9 days | 0.4 in | Low |
| Aug | 3.4 in | 10 days | 0.9 in | Moderate |
| Sep | 3.6 in | 7 days | 0.7 in | Moderate |
| Oct | 3.3 in | 9 days | 1 in | Moderate |
| Nov | 2.4 in | 8 days | — | None |
| Dec | 1.9 in | 7 days | — | None |
Annual total: 36.7 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.
Clinton County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-7.1
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 9 | 197 days |
| Cautious | Apr 18 | Oct 28 | 193 days |
| Average year | Apr 13 | Oct 25 | 195 days |
| Optimistic | Apr 4 | Oct 17 | 196 days |
| Aggressive (risky) | Mar 25 | Oct 7 | 196 days |
Not very — frost dates can vary by ±31 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Gardening Difficulty Score
Clinton County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Clinton 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 Clinton County's climate and soil.
County Extension Office
Clinton County University of Missouri Extension Extension Office
Phone: 573-882-7554
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 Clinton County
Finding local nurseries & garden centers in Clinton County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Clinton 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 Clinton County MO" or "garden center Clinton 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 Clinton County MO" or check your extension office and local parks department. Facebook groups like "Clinton County Gardeners" or "Missouri 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 Clinton County
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Why it matters: Onions are a great example of why day length matters. They "bulb up" only when daylight hits a specific number of hours — plant the wrong variety (short-day in the north, long-day in the south) and you'll get tiny bulbs no matter how well you grow them. Clinton County's latitude determines which onion varieties succeed.
Longest Day
14.8 hours
Summer solstice daylight
Shortest Day
9.2 hours
Winter solstice daylight
Peak Sun Hours
9.3 hr/day peak (summer)
Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.
Onion tip: Your long summer days (14+ hours) support long-day onion varieties like Walla Walla, Sweet Spanish, and Ailsa Craig.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 9.5 hr | 3.8 hr | Short day |
| February | 10.5 hr | 4.8 hr | Short day |
| March | 11.7 hr | 5.6 hr | Short day |
| April | 13.1 hr | 6.7 hr | Neutral |
| May | 14.2 hr | 8 hr | Long day |
| June | 14.8 hr | 9.3 hr | Long day |
| July | 14.5 hr | 9 hr | Long day |
| August | 13.6 hr | 8.8 hr | Neutral |
| September | 12.2 hr | 7.4 hr | Neutral |
| October | 10.9 hr | 5.6 hr | Short day |
| November | 9.8 hr | 3.9 hr | Short day |
| December | 9.2 hr | 3.5 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Clinton County
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Why it matters: Air temperature lies. Your air can be 70°F in April but the soil 4 inches down is still 50°F — too cold for tomatoes or peppers to root properly. Clinton County's soil temperature curve tells you the real planting window. A $5 soil thermometer pays for itself in one season.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from May through Sep.
Best Month to Compost
Jun
Microbial activity peaks when soil is warm.
Active Composting
6 months
Solid season. Piles go dormant in winter.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 24°F | 33°F | ❄️ Dormant | ~36 weeks |
| Feb | 24°F | 30°F | ❄️ Dormant | ~36 weeks |
| Mar | 31°F | 36°F | ❄️ Dormant | ~36 weeks |
| Apr | 44°F | 46°F | 🐢 Slow | ~24 weeks |
| May | 61°F | 55°F | ♻️ Active | ~14 weeks |
| Jun | 69°F | 64°F | 🔥 Peak | ~8 weeks |
| Jul | 76°F | 72°F | 🔥 Peak | ~8 weeks |
| Aug | 77°F | 75°F | 🔥 Peak | ~8 weeks |
| Sep | 72°F | 69°F | 🔥 Peak | ~8 weeks |
| Oct | 60°F | 62°F | ♻️ Active | ~14 weeks |
| Nov | 42°F | 50°F | 🐢 Slow | ~24 weeks |
| Dec | 29°F | 38°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 Clinton County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Why this matters: Pest and disease pressure is the X-factor most beginners under-plan for. Clinton County's climate determines whether you can mostly "plant and see" or whether you need a pest-management routine from the first seedling.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Moderate — watch for mildew and blight during wet periods.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash bugs | Low | Jun, Jul, Aug |
| Tomato hornworms | Moderate | Jul, Aug |
| Cabbage loopers | Low | May, Jun, Jul, Aug |
| Slugs | Low | Apr, May, Jun |
Organic pest management tips
- Use row covers on susceptible crops during peak pest months
- Apply neem oil preventatively every 7-14 days during active pest season
- Interplant with strong-scented herbs (basil, marigold) to confuse pests
- Hand-pick larger pests (beetles, caterpillars) in early morning when they're sluggish
- Practice crop rotation — never plant the same family in the same spot within 3 years
Cover Crops for Clinton County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Quick context: A fall-planted cover crop in Clinton County is the closest thing to free soil amendment. Plant cereal rye or hairy vetch after harvest; chop it down before it flowers in spring; the soil it leaves behind out-grows any store-bought compost.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 16 | Aug 23 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | Apr 17 | Aug 30 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 19 | Aug 30 | ✓ 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 5 | Oct 4 | — | 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 | Sep 1 | Mar 30 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Sep 3 | Mar 23 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 9 | Mar 23 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 22 | Mar 23 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 27 | Mar 23 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 30 | Mar 30 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Clinton County
Why it matters: A 10 mph wind doesn't feel like much, but it triples leaf transpiration vs. still air. Clinton County's 9.8 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: 12 mph Summer: 10 mph
Fall: 10 mph Winter: 11 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
4.7/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Low
Relatively flat terrain (220 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Clinton County
How much water you can collect, when to collect it, and what size system you need for your garden.
What this means for you: A single rain barrel under a downspout catches 50 gallons in a 0.5" storm. Clinton County's 37" annual rainfall means even modest harvesting systems quickly amortize their cost in water savings.
Annual Collection
18,291 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
6 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 1,500 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
May, Jun, Jul, Sep
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Feb, Dec
Dry months when you'll rely on stored water — size your storage for this gap.
Rainwater collection tips for your area
- Your county receives approximately 36.7 inches of rain per year
- A 1,000 sq ft roof can collect roughly 18,291 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jan, Feb, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Clinton County
Soil Type
Silt Loam
Soil pH 5.5–7.1 · Well Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
Watering Needs
Drought stress: 3.5/10
Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (36.7 in. annual rainfall)
Season Tips
195-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 Clinton County
107 vegetables that grow well in Zone 6a with planting dates for Clinton County.
Show all 107 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 9 | Apr 20 | Apr 27 | — | Jul 20 – Aug 24 | 80–100 |
| Amaranth | Feb 16 | Apr 20 | Apr 27 | — | Jul 27 – Sep 14 | 90–120 |
| Arugula | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 18 – Jul 20 | 30–50 |
| Asparagus | — | — | Apr 27 | — | — | 730–1095 |
| Beets | — | Mar 30 | — | Aug 16 | May 25 – Jun 22 | 50–70 |
| Belgian Endive | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Aug 3 – Sep 28 | 110–150 |
| Bitter Melon | Feb 16 | Apr 20 | Apr 27 | — | Jun 29 – Aug 10 | 60–90 |
| Black Beans | — | Apr 20 | — | — | Jul 20 – Sep 7 | 90–120 |
| Bok Choy | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 25 – Jun 29 | 40–60 |
| Broccoli | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 15 – Jul 27 | 60–90 |
| Broccoli Rabe | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 25 – Jun 29 | 40–60 |
| Brussels Sprouts | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jul 13 – Sep 7 | 90–130 |
| Butternut Squash | Mar 9 | Apr 20 | Apr 27 | — | Jul 27 – Aug 31 | 85–110 |
| Cabbage | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 15 – Aug 10 | 60–100 |
| Calabash | Feb 16 | Apr 20 | Apr 27 | — | Jul 20 – Sep 14 | 80–120 |
| Carrots | — | Mar 30 | — | Aug 16 | Jun 1 – Jul 6 | 60–80 |
| Cauliflower | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Aug 10 | 55–100 |
| Celeriac | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jul 27 – Aug 31 | 100–120 |
| Celery | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jul 6 – Aug 31 | 80–120 |
| Celtuce | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 15 – Jul 27 | 60–90 |
| Chard | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Jul 27 | 50–60 |
| Chickpeas | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jul 6 – Aug 17 | 80–110 |
| Chicory | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 15 – Jul 27 | 60–85 |
| Chinese Cabbage | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Jul 6 | 50–70 |
| Christmas Lima Beans | Feb 16 | Apr 20 | Apr 27 | — | Jul 20 – Aug 24 | 80–100 |
| Collard Greens | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Aug 10 | 55–75 |
| Corn | — | Apr 20 | — | — | Jun 22 – Aug 17 | 60–100 |
| Cowpeas | — | Apr 20 | — | — | Jun 22 – Aug 3 | 60–90 |
| Cress | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Apr 27 – May 18 | 14–21 |
| Crookneck Squash | Mar 9 | Apr 20 | Apr 27 | — | Jun 15 – Jul 13 | 45–60 |
| Crosne | — | Mar 30 | — | Aug 16 | Aug 31 – Oct 12 | 150–200 |
| Cucumber | Mar 9 | Apr 20 | Apr 27 | — | Jun 22 – Aug 17 | 50–70 |
| Daikon | — | Mar 30 | — | Aug 16 | May 25 – Jun 22 | 50–70 |
| Delicata Squash | Mar 9 | Apr 20 | Apr 27 | — | Jul 20 – Aug 24 | 80–100 |
| Edamame | — | Apr 20 | — | — | Jul 6 – Aug 17 | 75–100 |
| Eggplant | Feb 2 | Apr 20 | Apr 27 | — | Jul 6 – Sep 7 | 65–85 |
| Endive | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 1 – Jul 6 | 45–65 |
| Escarole | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Jul 6 | 50–70 |
| Fava Beans | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 29 – Aug 10 | 75–100 |
| Fennel | Feb 16 | Apr 20 | Apr 27 | — | Jun 29 – Aug 10 | 60–90 |
| Garlic | — | — | — | Sep 13 | Dec 13 – Mar 28 | 90–240 |
| Green Beans | — | Apr 20 | — | — | Jun 15 – Aug 10 | 50–65 |
| Horseradish | — | — | Apr 27 | — | Aug 31 – Nov 9 | 120–180 |
| Hot Peppers | Feb 2 | Apr 20 | Apr 27 | — | Jul 6 – Oct 12 | 70–120 |
| Hubbard Squash | Mar 9 | Apr 20 | Apr 27 | — | Aug 10 – Sep 14 | 100–120 |
| Kabocha | Mar 9 | Apr 20 | Apr 27 | — | Jul 27 – Aug 24 | 85–100 |
| Kai Lan | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 1 – Jun 29 | 45–60 |
| Kale | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Aug 3 | 50–70 |
| Kidney Beans | — | Apr 20 | — | — | Jul 20 – Aug 24 | 85–110 |
| Kohlrabi | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 1 – Jul 6 | 45–65 |
| Komatsuna | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 18 – Jun 22 | 35–50 |
| Leeks | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jul 13 – Sep 28 | 90–150 |
| Lentils | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jul 6 – Aug 17 | 80–110 |
| Lettuce | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 18 – Jul 27 | 30–60 |
| Lima Beans | — | Apr 20 | — | — | Jun 22 – Aug 3 | 60–90 |
| Loofah | Feb 16 | Apr 20 | Apr 27 | — | Aug 10 – Oct 12 | 100–150 |
| Luffa | Feb 16 | Apr 20 | Apr 27 | — | Jul 27 – Oct 12 | 90–150 |
| Mache | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 25 – Jun 29 | 40–60 |
| Melon | Mar 9 | Apr 20 | Apr 27 | — | Jul 6 – Aug 24 | 70–100 |
| Microgreens | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Apr 20 – May 18 | 7–21 |
| Mitsuba | Mar 9 | Mar 30 | Apr 6 | Aug 16 | Jun 1 – Jul 27 | 50–70 |
| Mizuna | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 18 – Jun 15 | 30–45 |
| Mustard Greens | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 18 – Jul 20 | 30–50 |
| Napa Cabbage | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Jul 13 | 55–75 |
| New Zealand Spinach | Feb 16 | Apr 20 | Apr 27 | — | Jun 22 – Jul 20 | 55–70 |
| Okra | Feb 16 | Apr 20 | Apr 27 | — | Jun 22 – Aug 17 | 50–65 |
| Onion | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jul 13 – Aug 31 | 90–120 |
| Pac Choi | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 25 – Jun 22 | 40–55 |
| Parsnip | — | Mar 30 | — | Aug 16 | Jul 13 – Aug 24 | 100–130 |
| Patty Pan Squash | Mar 9 | Apr 20 | Apr 27 | — | Jun 15 – Jul 13 | 45–60 |
| Peas | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Aug 3 | 55–70 |
| Peppers | Feb 2 | Apr 20 | Apr 27 | — | Jun 29 – Sep 7 | 60–90 |
| Pole Beans | Feb 16 | Apr 20 | Apr 27 | — | Jun 22 – Aug 17 | 55–70 |
| Potatoes | Feb 16 | Apr 20 | Apr 27 | — | Jul 6 – Sep 14 | 70–120 |
| Pumpkin | Mar 9 | Apr 20 | Apr 27 | — | Jul 27 – Sep 14 | 85–120 |
| Purslane | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 25 – Jun 29 | 40–60 |
| Radicchio | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 15 – Jul 20 | 60–80 |
| Radish | — | Mar 30 | — | Aug 16 | Apr 27 – May 18 | 22–35 |
| Rhubarb | — | — | May 4 | — | — | 365–730 |
| Romanesco | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 29 – Aug 10 | 75–100 |
| Rutabaga | — | Mar 30 | — | Aug 16 | Jun 22 – Jul 27 | 80–100 |
| Salsify | — | Mar 30 | — | Aug 16 | Jul 13 – Aug 24 | 100–130 |
| Savoy Cabbage | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 22 – Aug 17 | 70–110 |
| Scallions | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Jul 6 | 50–70 |
| Scarlet Runner Beans | Feb 16 | Apr 20 | Apr 27 | — | Jun 29 – Aug 3 | 60–80 |
| Shallot | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jul 13 – Aug 31 | 90–120 |
| Shiso | Feb 23 | Apr 20 | Apr 27 | — | Jun 22 – Aug 17 | 50–70 |
| Snap Peas | Feb 16 | Apr 20 | Apr 27 | — | Jun 22 – Aug 17 | 55–70 |
| Snow Peas | Mar 9 | Mar 30 | Apr 13 | Aug 16 | Jun 8 – Aug 3 | 50–65 |
| Soybeans | — | Apr 20 | — | — | Jul 13 – Sep 7 | 80–120 |
| Spaghetti Squash | Mar 9 | Apr 20 | Apr 27 | — | Jul 27 – Aug 24 | 85–100 |
| Spinach | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 18 – Jul 20 | 35–50 |
| Squash (Summer) | Mar 9 | Apr 20 | Apr 27 | — | Jun 15 – Aug 17 | 45–65 |
| Squash (Winter) | Mar 9 | Apr 20 | Apr 27 | — | Jul 20 – Sep 14 | 80–120 |
| Sunchoke | — | — | Apr 27 | — | Aug 17 – Oct 12 | 110–150 |
| Sweet Corn | — | Apr 20 | — | — | Jun 22 – Aug 3 | 60–90 |
| Sweet Potatoes | Feb 16 | Apr 20 | Apr 27 | — | Jul 27 – Sep 14 | 90–120 |
| Tatsoi | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 18 – Jun 22 | 35–50 |
| Tomatillo | Feb 16 | Apr 20 | Apr 27 | — | Jun 29 – Sep 7 | 60–85 |
| Tomatoes | Feb 16 | Apr 20 | Apr 27 | — | Jun 29 – Sep 7 | 60–85 |
| Turnip | — | Mar 30 | — | Aug 16 | May 11 – Jun 15 | 40–60 |
| Watercress | Mar 9 | Mar 30 | Apr 13 | Aug 16 | May 25 – Jun 29 | 40–60 |
| Watermelon | Mar 9 | Apr 20 | Apr 27 | — | Jul 6 – Aug 24 | 70–100 |
| Wax Beans | — | Apr 20 | — | — | Jun 15 – Aug 10 | 50–65 |
| Winter Melon | Feb 16 | Apr 20 | Apr 27 | — | Jul 27 – Sep 14 | 90–120 |
| Yard Long Beans | Feb 16 | Apr 20 | Apr 27 | — | Jun 22 – Aug 3 | 55–80 |
| Zucchini | Mar 9 | Apr 20 | Apr 27 | — | Jun 15 – Aug 10 | 45–60 |
🍓 Fruits to Grow in Clinton County
27 fruits that grow well in Zone 6a with planting dates for Clinton County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 4 | — | Aug 3 – Nov 16 | 90–180 |
| Aronia | — | — | May 4 | — | — | 730–1095 |
| Blackberries | — | — | May 4 | — | — | 365–730 |
| Blueberries | — | — | May 4 | — | — | 730–1095 |
| Boysenberries | — | — | May 4 | — | — | 365–730 |
| Cantaloupe | — | — | May 4 | — | Jul 13 – Aug 17 | 70–90 |
| Che Fruit | — | — | May 4 | — | — | 1095–1825 |
| Cranberries | — | — | May 4 | — | — | 730–1095 |
| Currants | — | — | May 4 | — | — | 730–1095 |
| Elderberries | — | — | May 4 | — | — | 730–1095 |
| Goji Berries | — | — | May 4 | — | — | 730–1095 |
| Gooseberries | — | — | May 4 | — | — | 730–1095 |
| Grapes | — | — | May 4 | — | — | 730–1095 |
| Ground Cherry | — | — | May 4 | — | Jul 13 – Sep 7 | 65–80 |
| Hardy Kiwi | — | — | May 4 | — | — | 1095–1825 |
| Haskaps | — | — | May 4 | — | — | 730–1095 |
| Honeydew | — | — | May 4 | — | Jul 27 – Sep 7 | 80–110 |
| Jostaberry | — | — | May 4 | — | — | 730–1095 |
| Lingonberries | — | — | May 4 | — | — | 730–1095 |
| Medlar | — | — | May 4 | — | — | 1095–1825 |
| Mulberries | — | — | May 4 | — | — | 730–1825 |
| Pawpaw | — | — | May 4 | — | — | 1095–2555 |
| Persimmon | — | — | May 4 | — | — | 1095–2555 |
| Quince | — | — | May 4 | — | — | 1095–1825 |
| Raspberries | — | — | May 4 | — | — | 365–730 |
| Serviceberries | — | — | May 4 | — | — | 730–1095 |
| Strawberries | — | — | May 4 | — | Aug 3 – Nov 16 | 90–365 |
🌿 Herbs to Grow in Clinton County
35 herbs that grow well in Zone 6a with planting dates for Clinton County.
Show all 35 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 9 | Mar 30 | Apr 6 | Aug 16 | — | 365–730 |
| Anise | Mar 9 | Mar 30 | Apr 6 | Aug 16 | Jul 6 – Sep 21 | 90–120 |
| Basil | Feb 23 | Apr 20 | Apr 27 | — | Jun 22 – Aug 24 | 50–75 |
| Bee Balm | — | — | Apr 20 | — | Jul 20 – Oct 5 | 90–120 |
| Borage | Mar 9 | Mar 30 | Apr 6 | Aug 16 | Jun 1 – Jul 20 | 50–60 |
| Caraway | Mar 9 | Mar 30 | Apr 6 | Aug 16 | — | 365–450 |
| Catnip | — | — | Apr 20 | — | Jun 22 – Aug 24 | 60–80 |
| Chamomile | Mar 9 | Mar 30 | Apr 6 | Aug 16 | Jun 8 – Aug 17 | 60–90 |
| Chervil | Mar 9 | Mar 30 | Apr 6 | Aug 16 | May 18 – Jul 20 | 40–60 |
| Chives | — | — | Apr 20 | — | Jun 22 – Aug 31 | 60–90 |
| Cilantro | Mar 9 | Mar 30 | Apr 6 | Aug 16 | May 18 – Jul 20 | 40–60 |
| Comfrey | — | — | Apr 20 | — | Jun 22 – Aug 31 | 60–90 |
| Cumin | Mar 9 | Mar 30 | Apr 6 | Aug 16 | Jul 20 – Sep 21 | 100–120 |
| Dill | Mar 9 | Mar 30 | Apr 6 | Aug 16 | May 18 – Jul 20 | 40–60 |
| Epazote | Feb 23 | Apr 20 | Apr 27 | — | Jun 15 – Aug 10 | 45–60 |
| Fennel (herb) | Mar 9 | Mar 30 | Apr 6 | Aug 16 | Jun 8 – Aug 17 | 60–90 |
| Feverfew | — | — | Apr 20 | — | Jul 20 – Oct 5 | 90–120 |
| Garlic Chives | — | — | Apr 20 | — | Jun 22 – Aug 31 | 60–90 |
| Horehound | — | — | Apr 20 | — | Jul 6 – Aug 31 | 75–90 |
| Hyssop | — | — | Apr 20 | — | Jun 29 – Aug 31 | 70–90 |
| Lemon Balm | — | — | Apr 20 | — | Jun 22 – Aug 10 | 60–70 |
| Lemon Thyme | — | — | Apr 20 | — | Jun 29 – Aug 31 | 70–90 |
| Lovage | — | — | Apr 20 | — | Jun 29 – Aug 31 | 70–90 |
| Marjoram | — | — | Apr 20 | — | Jun 22 – Aug 31 | 60–90 |
| Mint | — | — | Apr 20 | — | Jun 22 – Aug 31 | 60–90 |
| Oregano | — | — | Apr 20 | — | Jun 22 – Aug 31 | 60–90 |
| Parsley | Mar 9 | Mar 30 | Apr 6 | Aug 16 | Jun 8 – Aug 10 | 60–80 |
| Rue | — | — | Apr 20 | — | Jun 29 – Aug 31 | 70–90 |
| Sage | — | — | Apr 20 | — | Jul 6 – Aug 31 | 75–90 |
| Savory | — | — | Apr 20 | — | Jun 15 – Aug 10 | 50–70 |
| Sorrel | Mar 9 | Mar 30 | Apr 6 | Aug 16 | May 18 – Jul 20 | 40–60 |
| Tarragon | — | — | Apr 20 | — | Jun 22 – Aug 31 | 60–90 |
| Thai Basil | Feb 23 | Apr 20 | Apr 27 | — | Jun 22 – Aug 24 | 50–75 |
| Thyme | — | — | Apr 20 | — | Jun 29 – Aug 31 | 70–90 |
| Valerian | — | — | Apr 20 | — | Aug 24 – Nov 2 | 120–180 |
🌸 Flowers to Grow in Clinton County
53 flowers that grow well in Zone 6a with planting dates for Clinton County.
Show all 53 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Feb 23 | Apr 13 | Apr 13 | — | Jun 8 – Sep 14 | 60–75 |
| Alliums | — | — | — | Sep 13 | Oct 11 – Nov 8 | 28–42 |
| Anemones | Mar 16 | — | Apr 13 | — | May 18 – Jun 15 | 90–120 |
| Astilbe | Feb 9 | — | Apr 20 | — | Jun 29 – Sep 7 | 70–100 |
| Bachelor's Button | Mar 2 | Mar 16 | Apr 13 | Sep 13 | Jun 15 – Aug 31 | 60–90 |
| Begonias | Feb 2 | — | Apr 20 | — | Jun 29 – Sep 28 | 70–90 |
| Black-eyed Susan | Feb 9 | Apr 13 | Apr 20 | — | Jul 6 – Oct 19 | 60–80 |
| Bleeding Hearts | Feb 9 | — | Apr 20 | — | Jun 15 – Jul 20 | 60–90 |
| Calendula | Mar 2 | Mar 16 | Apr 13 | — | Jun 1 – Aug 31 | 50–70 |
| California Poppy | — | Mar 16 | — | — | May 25 – Jul 6 | 60–90 |
| Celosia | Mar 9 | Apr 20 | Apr 20 | — | Jun 22 – Oct 5 | 60–90 |
| Columbine | Feb 9 | Apr 27 | Apr 27 | — | Jun 22 – Jul 27 | 70–100 |
| Coreopsis | Feb 9 | Apr 20 | Apr 20 | — | Jun 29 – Oct 19 | 60–80 |
| Cosmos | Mar 16 | Apr 13 | Apr 13 | — | Jun 22 – Sep 28 | 60–90 |
| Crocus | — | — | — | Sep 13 | Aug 2 – Aug 23 | 10–20 |
| Daffodils | — | — | — | Sep 13 | Aug 9 – Aug 30 | 20–40 |
| Dahlias | Mar 16 | Apr 20 | Apr 20 | — | Jul 6 – Oct 19 | 70–120 |
| Daylily | Feb 9 | — | Apr 20 | — | Jul 6 – Oct 19 | 60–90 |
| Dianthus | Feb 16 | Mar 16 | Mar 30 | — | May 18 – Aug 17 | 60–80 |
| Echinacea (Purple Coneflower) | Feb 9 | Apr 27 | Apr 27 | — | Jul 20 – Oct 26 | 70–90 |
| Foxglove | Feb 9 | Apr 20 | Apr 20 | — | Jun 15 – Jul 20 | 80–120 |
| Gaillardia (Blanket Flower) | Feb 23 | Apr 20 | Apr 20 | — | Jun 29 – Nov 2 | 70–100 |
| Geraniums | Feb 2 | — | Apr 20 | — | Jun 29 – Sep 28 | 70–100 |
| Gladiolus | — | Apr 13 | Apr 13 | — | Jun 29 – Oct 12 | 70–100 |
| Hostas | Feb 2 | — | Apr 20 | — | Jul 6 – Oct 19 | 60–90 |
| Hyacinths | — | — | — | Sep 13 | Aug 30 – Sep 20 | 14–28 |
| Hydrangeas | Feb 2 | — | Apr 20 | — | Jun 29 – Oct 5 | 90–150 |
| Impatiens | Feb 16 | — | Apr 20 | — | Jun 29 – Oct 5 | 60–75 |
| Irises | — | Division | Apr 20 | — | Jun 15 – Jul 13 | 60–100 |
| Larkspur | — | Mar 16 | — | — | May 25 – Jul 20 | 60–90 |
| Lavender | Feb 2 | — | Apr 27 | — | Jul 6 – Aug 31 | 90–120 |
| Lilies | — | Division | Apr 20 | — | Jun 29 – Oct 5 | 70–120 |
| Lobelia | Feb 9 | — | Mar 30 | — | May 25 – Aug 17 | 70–80 |
| Lupine | Feb 9 | Apr 20 | Apr 20 | — | Jun 15 – Jul 20 | 75–100 |
| Marigolds | Mar 2 | Apr 20 | Apr 20 | — | Jun 15 – Sep 14 | 50–70 |
| Nasturtium | Mar 16 | Apr 20 | Apr 20 | — | Jun 15 – Oct 5 | 55–65 |
| Pansy | Feb 2 | — | Apr 13 | Aug 30 | Jun 8 – Aug 10 | 70–90 |
| Peonies | — | Division | Apr 20 | — | Jun 22 – Jul 27 | 90–120 |
| Petunia | Feb 16 | — | Apr 20 | — | Jun 29 – Oct 5 | 70–90 |
| Phlox | Feb 9 | Apr 20 | Apr 20 | — | Jun 29 – Sep 21 | 80–110 |
| Portulaca | Mar 9 | Apr 20 | Apr 20 | — | Jun 8 – Sep 21 | 50–70 |
| Ranunculus | Mar 2 | — | Apr 13 | — | May 25 – Jun 22 | 90–120 |
| Roses | Feb 2 | — | Apr 20 | — | Jun 29 – Oct 19 | 90–180 |
| Salvia | Feb 9 | — | Apr 20 | — | Jun 29 – Oct 5 | 70–90 |
| Sedum (Stonecrop) | Feb 9 | — | Apr 20 | — | Aug 10 – Oct 26 | 60–90 |
| Snapdragon | Feb 2 | Mar 23 | Apr 13 | — | Jun 22 – Aug 31 | 70–100 |
| Sunflower | Mar 23 | Apr 20 | Apr 20 | — | Jul 13 – Oct 5 | 70–100 |
| Sweet Alyssum | Feb 23 | Mar 23 | Apr 13 | — | May 25 – Aug 3 | 45–60 |
| Sweet Pea | Mar 2 | Mar 9 | Apr 13 | — | Jun 29 – Sep 7 | 65–85 |
| Tulips | — | — | — | Sep 13 | Aug 23 – Sep 20 | 15–30 |
| Vinca (Annual) | Feb 2 | — | Apr 20 | — | Jun 29 – Oct 5 | 70–90 |
| Yarrow | Feb 9 | Apr 13 | Apr 20 | — | Jun 29 – Oct 19 | 60–90 |
| Zinnia | Mar 16 | Apr 20 | Apr 20 | — | Jun 29 – Oct 5 | 60–70 |
Monthly Planting Guide for Clinton County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Clinton County.
Frequently Asked Questions
What planting zone is Clinton County, MO?
Clinton 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 Clinton County, MO?
Based on 31 years of NOAA weather station data, the median last spring frost in Clinton County falls around April 13. In 8 out of 10 years, last frost lands between March 25 and April 26 — a 31-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 Clinton County, MO?
The median first fall frost in Clinton County arrives around October 25. In cold years it can arrive as early as October 7; in mild years as late as November 9. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Clinton County?
Clinton County has a frost-free growing season of approximately 195 days. This is enough time for most warm-season crops including tomatoes, peppers, and squash with proper timing.
What is the soil like in Clinton County for gardening?
Clinton County has predominantly Silt Loam soil with a pH range of 5.5–7.1 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Clinton County?
Clinton County has commercial agriculture that includes Soybeans, Corn, Cattle, Hay, Wheat. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Clinton County a good location for home gardening?
Clinton 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 Clinton County Garden Planner — Free
A 22-page printable planner built for Clinton 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