Lewis County, MO — Planting Guide
This month in Lewis County, Missouri
We've pulled the most time-sensitive tasks for Lewis County, Missouri this May and put them front and centre. Tackle them in order.
-
Move alpine strawberries, aronia, and blackberries into the garden
Pinch off the lowest leaves on each seedling before you plant — it reduces water loss while the roots catch up.
-
Time to start cucumber, kale, and lettuce inside
Label every cell. You will absolutely forget which is which otherwise.
-
Harvest lettuce, radish, and arugula as they ripen
If you can't use it all right away, check the food-preservation section of your planner.
Before June arrives, get these ready
- Starting indoors: basil, peppers, and pole beans
- First harvests: basil, carrots, and cucumber
Lewis County is in USDA Zone 6a. The average last spring frost is April 15 and the first fall frost is October 17, giving you a growing season of approximately 185 days.
At an elevation of 945 ft, Lewis County receives approximately 31.8 in of rainfall annually. Summer highs average 86°F with winter lows around 15°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 25 days year to year — ranging from April 5 in warm years to April 30 in cold years. The growing season is trending shorter by about 1.51 days per decade. Lewis County scores 61/100 (Good) on the Microclimate Index.
🌡️ Zone
6a (°F to °F min)
❄️ Last Frost
April 15
🍂 First Frost
October 17
📅 Growing Season
185 days
⛰️ Elevation
945 ft
🌧️ Annual Rainfall
31.8 in
Monthly Watering Calendar
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 1.1 in | 8 days | — | None |
| Feb | 1.5 in | 6 days | — | None |
| Mar | 2.4 in | 9 days | — | None |
| Apr | 3.3 in | 10 days | 1 in | Moderate |
| May | 4.1 in | 11 days | 0.2 in | Low |
| Jun | 4.2 in | 9 days | 0.1 in | Low |
| Jul | 3.1 in | 8 days | 1.2 in | Moderate |
| Aug | 3.5 in | 10 days | 0.8 in | Moderate |
| Sep | 2.9 in | 7 days | 1.4 in | Moderate |
| Oct | 2.2 in | 7 days | 2.1 in | High |
| Nov | 2.1 in | 8 days | — | None |
| Dec | 1.5 in | 7 days | — | None |
Annual total: 31.9 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.
Lewis County Soil Profile
Soil Type
Silt Loam
Soil pH
5.3-6.8
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 30 | Oct 31 | 184 days |
| Cautious | Apr 22 | Oct 27 | 188 days |
| Average year | Apr 15 | Oct 17 | 185 days |
| Optimistic | Apr 10 | Oct 12 | 185 days |
| Aggressive (risky) | Apr 5 | Oct 5 | 183 days |
Not very — frost dates can vary by ±25 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Yes — growing seasons are getting shorter here (about 1.5 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.
Gardening Difficulty Score
Lewis County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Lewis 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 Lewis County's climate and soil.
County Extension Office
Lewis 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 Lewis County
Finding local nurseries & garden centers in Lewis County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Lewis 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 Lewis County MO" or "garden center Lewis 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 Lewis County MO" or check your extension office and local parks department. Facebook groups like "Lewis 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
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
14.8 hours
Summer solstice daylight
Shortest Day
9.2 hours
Winter solstice daylight
Peak Sun Hours
9.8 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 | 9.4 hr | 3.6 hr | Short day |
| February | 10.5 hr | 4.6 hr | Short day |
| March | 11.7 hr | 5.8 hr | Short day |
| April | 13.1 hr | 6.7 hr | Neutral |
| May | 14.2 hr | 8.5 hr | Long day |
| June | 14.8 hr | 9.3 hr | Long day |
| July | 14.6 hr | 9.8 hr | Long day |
| August | 13.6 hr | 8.6 hr | Neutral |
| September | 12.2 hr | 7.4 hr | Neutral |
| October | 10.9 hr | 5.8 hr | Short day |
| November | 9.7 hr | 4 hr | Short day |
| December | 9.2 hr | 3.4 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting Calendar
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from May through 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 | 21°F | 32°F | ❄️ Dormant | ~36 weeks |
| Feb | 25°F | 30°F | ❄️ Dormant | ~36 weeks |
| Mar | 34°F | 36°F | ❄️ Dormant | ~36 weeks |
| Apr | 47°F | 45°F | 🐢 Slow | ~24 weeks |
| May | 61°F | 56°F | ♻️ Active | ~14 weeks |
| Jun | 71°F | 64°F | 🔥 Peak | ~8 weeks |
| Jul | 76°F | 71°F | 🔥 Peak | ~8 weeks |
| Aug | 79°F | 75°F | 🔥 Peak | ~8 weeks |
| Sep | 72°F | 69°F | 🔥 Peak | ~8 weeks |
| Oct | 56°F | 60°F | ♻️ Active | ~14 weeks |
| Nov | 43°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 Lewis County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 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 | Moderate | 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 Lewis County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 18 | Aug 8 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | Apr 23 | Aug 8 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 15 | 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 5 | Sep 26 | — | 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 18 | Apr 1 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Aug 19 | Mar 25 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 11 | Mar 25 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 18 | Mar 25 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 8 | Apr 1 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 10 | Mar 25 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 11 mph Summer: 9 mph
Fall: 11 mph Winter: 12 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
5.3/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Low
Relatively flat terrain (229 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
15,898 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 1,750 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Apr, May, Jun, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Feb, Dec
Dry months when you'll rely on stored water — size your storage for this gap.
Rainwater collection tips for your area
- Your county receives approximately 31.9 inches of rain per year
- A 1,000 sq ft roof can collect roughly 15,898 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 Lewis County
Soil Type
Silt Loam
Soil pH 5.3–6.8 · Somewhat Poorly 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. (31.8 in. annual rainfall)
Season Tips
185-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 24-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 Lewis County
108 vegetables that grow well in Zone 6a with planting dates for Lewis County.
Show all 108 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Mar 11 | Apr 22 | Apr 29 | Jul 22 – Aug 26 | 80–100 |
| Amaranth | Feb 18 | Apr 22 | Apr 29 | Jul 29 – Sep 16 | 90–120 |
| Arugula | Mar 11 | Apr 1 | Apr 15 | May 20 – Jul 22 | 30–50 |
| Asparagus | — | — | Apr 29 | — | 730–1095 |
| Beets | — | Apr 1 | — | May 27 – Jun 24 | 50–70 |
| Belgian Endive | Mar 11 | Apr 1 | Apr 15 | Aug 5 – Sep 30 | 110–150 |
| Bitter Melon | Feb 18 | Apr 22 | Apr 29 | Jul 1 – Aug 12 | 60–90 |
| Black Beans | — | Apr 22 | — | Jul 22 – Sep 9 | 90–120 |
| Bok Choy | Mar 11 | Apr 1 | Apr 15 | May 27 – Jul 1 | 40–60 |
| Broccoli | Mar 11 | Apr 1 | Apr 15 | Jun 17 – Jul 29 | 60–90 |
| Broccoli Rabe | Mar 11 | Apr 1 | Apr 15 | May 27 – Jul 1 | 40–60 |
| Brussels Sprouts | Mar 11 | Apr 1 | Apr 15 | Jul 15 – Sep 9 | 90–130 |
| Butternut Squash | Mar 11 | Apr 22 | Apr 29 | Jul 29 – Sep 2 | 85–110 |
| Cabbage | Mar 11 | Apr 1 | Apr 15 | Jun 17 – Aug 12 | 60–100 |
| Calabash | Feb 18 | Apr 22 | Apr 29 | Jul 22 – Sep 16 | 80–120 |
| Carrots | — | Apr 1 | — | Jun 3 – Jul 8 | 60–80 |
| Cauliflower | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Aug 12 | 55–100 |
| Celeriac | Mar 11 | Apr 1 | Apr 15 | Jul 29 – Sep 2 | 100–120 |
| Celery | Mar 11 | Apr 1 | Apr 15 | Jul 8 – Sep 2 | 80–120 |
| Celtuce | Mar 11 | Apr 1 | Apr 15 | Jun 17 – Jul 29 | 60–90 |
| Chard | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Jul 29 | 50–60 |
| Chickpeas | Mar 11 | Apr 1 | Apr 15 | Jul 8 – Aug 19 | 80–110 |
| Chicory | Mar 11 | Apr 1 | Apr 15 | Jun 17 – Jul 29 | 60–85 |
| Chinese Cabbage | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Jul 8 | 50–70 |
| Christmas Lima Beans | Feb 18 | Apr 22 | Apr 29 | Jul 22 – Aug 26 | 80–100 |
| Collard Greens | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Aug 12 | 55–75 |
| Corn | — | Apr 22 | — | Jun 24 – Aug 19 | 60–100 |
| Cowpeas | — | Apr 22 | — | Jun 24 – Aug 5 | 60–90 |
| Cress | Mar 11 | Apr 1 | Apr 15 | Apr 29 – May 20 | 14–21 |
| Crookneck Squash | Mar 11 | Apr 22 | Apr 29 | Jun 17 – Jul 15 | 45–60 |
| Crosne | — | Apr 1 | — | Sep 2 – Oct 14 | 150–200 |
| Cucumber | Mar 11 | Apr 22 | Apr 29 | Jun 24 – Aug 19 | 50–70 |
| Daikon | — | Apr 1 | — | May 27 – Jun 24 | 50–70 |
| Delicata Squash | Mar 11 | Apr 22 | Apr 29 | Jul 22 – Aug 26 | 80–100 |
| Edamame | — | Apr 22 | — | Jul 8 – Aug 19 | 75–100 |
| Eggplant | Feb 4 | Apr 22 | Apr 29 | Jul 8 – Sep 9 | 65–85 |
| Endive | Mar 11 | Apr 1 | Apr 15 | Jun 3 – Jul 8 | 45–65 |
| Escarole | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Jul 8 | 50–70 |
| Fava Beans | Mar 11 | Apr 1 | Apr 15 | Jul 1 – Aug 12 | 75–100 |
| Fennel | Feb 18 | Apr 22 | Apr 29 | Jul 1 – Aug 12 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | Apr 22 | — | Jun 17 – Aug 12 | 50–65 |
| Horseradish | — | — | Apr 29 | Sep 2 – Nov 11 | 120–180 |
| Hot Peppers | Feb 4 | Apr 22 | Apr 29 | Jul 8 – Oct 14 | 70–120 |
| Hubbard Squash | Mar 11 | Apr 22 | Apr 29 | Aug 12 – Sep 16 | 100–120 |
| Kabocha | Mar 11 | Apr 22 | Apr 29 | Jul 29 – Aug 26 | 85–100 |
| Kai Lan | Mar 11 | Apr 1 | Apr 15 | Jun 3 – Jul 1 | 45–60 |
| Kale | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Aug 5 | 50–70 |
| Kidney Beans | — | Apr 22 | — | Jul 22 – Aug 26 | 85–110 |
| Kohlrabi | Mar 11 | Apr 1 | Apr 15 | Jun 3 – Jul 8 | 45–65 |
| Komatsuna | Mar 11 | Apr 1 | Apr 15 | May 20 – Jun 24 | 35–50 |
| Leeks | Mar 11 | Apr 1 | Apr 15 | Jul 15 – Sep 30 | 90–150 |
| Lentils | Mar 11 | Apr 1 | Apr 15 | Jul 8 – Aug 19 | 80–110 |
| Lettuce | Mar 11 | Apr 1 | Apr 15 | May 20 – Jul 29 | 30–60 |
| Lima Beans | — | Apr 22 | — | Jun 24 – Aug 5 | 60–90 |
| Loofah | Feb 18 | Apr 22 | Apr 29 | Aug 12 – Oct 14 | 100–150 |
| Luffa | Feb 18 | Apr 22 | Apr 29 | Jul 29 – Oct 14 | 90–150 |
| Mache | Mar 11 | Apr 1 | Apr 15 | May 27 – Jul 1 | 40–60 |
| Melon | Mar 11 | Apr 22 | Apr 29 | Jul 8 – Aug 26 | 70–100 |
| Microgreens | Mar 11 | Apr 1 | Apr 15 | Apr 22 – May 20 | 7–21 |
| Mitsuba | Mar 11 | Apr 1 | Apr 8 | Jun 3 – Jul 29 | 50–70 |
| Mizuna | Mar 11 | Apr 1 | Apr 15 | May 20 – Jun 17 | 30–45 |
| Mustard Greens | Mar 11 | Apr 1 | Apr 15 | May 20 – Jul 22 | 30–50 |
| Napa Cabbage | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Jul 15 | 55–75 |
| New Zealand Spinach | Feb 18 | Apr 22 | Apr 29 | Jun 24 – Jul 22 | 55–70 |
| Okra | Feb 18 | Apr 22 | Apr 29 | Jun 24 – Aug 19 | 50–65 |
| Onion | Mar 11 | Apr 1 | Apr 15 | Jul 15 – Sep 2 | 90–120 |
| Pac Choi | Mar 11 | Apr 1 | Apr 15 | May 27 – Jun 24 | 40–55 |
| Parsnip | — | Apr 1 | — | Jul 15 – Aug 26 | 100–130 |
| Patty Pan Squash | Mar 11 | Apr 22 | Apr 29 | Jun 17 – Jul 15 | 45–60 |
| Peas | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Aug 5 | 55–70 |
| Peppers | Feb 4 | Apr 22 | Apr 29 | Jul 1 – Sep 9 | 60–90 |
| Pole Beans | Feb 18 | Apr 22 | Apr 29 | Jun 24 – Aug 19 | 55–70 |
| Potatoes | Feb 18 | Apr 22 | Apr 29 | Jul 8 – Sep 16 | 70–120 |
| Pumpkin | Mar 11 | Apr 22 | Apr 29 | Jul 29 – Sep 16 | 85–120 |
| Purslane | Mar 11 | Apr 1 | Apr 15 | May 27 – Jul 1 | 40–60 |
| Radicchio | Mar 11 | Apr 1 | Apr 15 | Jun 17 – Jul 22 | 60–80 |
| Radish | — | Apr 1 | — | Apr 29 – May 20 | 22–35 |
| Rhubarb | — | — | May 6 | — | 365–730 |
| Romanesco | Mar 11 | Apr 1 | Apr 15 | Jul 1 – Aug 12 | 75–100 |
| Rutabaga | — | Apr 1 | — | Jun 24 – Jul 29 | 80–100 |
| Salsify | — | Apr 1 | — | Jul 15 – Aug 26 | 100–130 |
| Savoy Cabbage | Mar 11 | Apr 1 | Apr 15 | Jun 24 – Aug 19 | 70–110 |
| Scallions | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Jul 8 | 50–70 |
| Scarlet Runner Beans | Feb 18 | Apr 22 | Apr 29 | Jul 1 – Aug 5 | 60–80 |
| Shallot | Mar 11 | Apr 1 | Apr 15 | Jul 15 – Sep 2 | 90–120 |
| Shiso | Feb 25 | Apr 22 | Apr 29 | Jun 24 – Aug 19 | 50–70 |
| Snap Peas | Feb 18 | Apr 22 | Apr 29 | Jun 24 – Aug 19 | 55–70 |
| Snow Peas | Mar 11 | Apr 1 | Apr 15 | Jun 10 – Aug 5 | 50–65 |
| Soybeans | — | Apr 22 | — | Jul 15 – Sep 9 | 80–120 |
| Spaghetti Squash | Mar 11 | Apr 22 | Apr 29 | Jul 29 – Aug 26 | 85–100 |
| Spinach | Mar 11 | Apr 1 | Apr 15 | May 20 – Jul 22 | 35–50 |
| Squash (Summer) | Mar 11 | Apr 22 | Apr 29 | Jun 17 – Aug 19 | 45–65 |
| Squash (Winter) | Mar 11 | Apr 22 | Apr 29 | Jul 22 – Sep 16 | 80–120 |
| Sunchoke | — | — | Apr 29 | Aug 19 – Oct 14 | 110–150 |
| Sunflower | Feb 18 | Apr 22 | Apr 29 | Jul 8 – Aug 26 | 70–100 |
| Sweet Corn | — | Apr 22 | — | Jun 24 – Aug 5 | 60–90 |
| Sweet Potatoes | Feb 18 | Apr 22 | Apr 29 | Jul 29 – Sep 16 | 90–120 |
| Tatsoi | Mar 11 | Apr 1 | Apr 15 | May 20 – Jun 24 | 35–50 |
| Tomatillo | Feb 18 | Apr 22 | Apr 29 | Jul 1 – Sep 9 | 60–85 |
| Tomatoes | Feb 18 | Apr 22 | Apr 29 | Jul 1 – Sep 9 | 60–85 |
| Turnip | — | Apr 1 | — | May 13 – Jun 17 | 40–60 |
| Watercress | Mar 11 | Apr 1 | Apr 15 | May 27 – Jul 1 | 40–60 |
| Watermelon | Mar 11 | Apr 22 | Apr 29 | Jul 8 – Aug 26 | 70–100 |
| Wax Beans | — | Apr 22 | — | Jun 17 – Aug 12 | 50–65 |
| Winter Melon | Feb 18 | Apr 22 | Apr 29 | Jul 29 – Sep 16 | 90–120 |
| Yard Long Beans | Feb 18 | Apr 22 | Apr 29 | Jun 24 – Aug 5 | 55–80 |
| Zucchini | Mar 11 | Apr 22 | Apr 29 | Jun 17 – Aug 12 | 45–60 |
🍓 Fruits to Grow in Lewis County
27 fruits that grow well in Zone 6a with planting dates for Lewis County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 6 | Aug 5 – Nov 18 | 90–180 |
| Aronia | — | — | May 6 | — | 730–1095 |
| Blackberries | — | — | May 6 | — | 365–730 |
| Blueberries | — | — | May 6 | — | 730–1095 |
| Boysenberries | — | — | May 6 | — | 365–730 |
| Cantaloupe | — | — | May 6 | Jul 15 – Aug 19 | 70–90 |
| Che Fruit | — | — | May 6 | — | 1095–1825 |
| Cranberries | — | — | May 6 | — | 730–1095 |
| Currants | — | — | May 6 | — | 730–1095 |
| Elderberries | — | — | May 6 | — | 730–1095 |
| Goji Berries | — | — | May 6 | — | 730–1095 |
| Gooseberries | — | — | May 6 | — | 730–1095 |
| Grapes | — | — | May 6 | — | 730–1095 |
| Ground Cherry | — | — | May 6 | Jul 15 – Sep 9 | 65–80 |
| Hardy Kiwi | — | — | May 6 | — | 1095–1825 |
| Haskaps | — | — | May 6 | — | 730–1095 |
| Honeydew | — | — | May 6 | Jul 29 – Sep 9 | 80–110 |
| Jostaberry | — | — | May 6 | — | 730–1095 |
| Lingonberries | — | — | May 6 | — | 730–1095 |
| Medlar | — | — | May 6 | — | 1095–1825 |
| Mulberries | — | — | May 6 | — | 730–1825 |
| Pawpaw | — | — | May 6 | — | 1095–2555 |
| Persimmon | — | — | May 6 | — | 1095–2555 |
| Quince | — | — | May 6 | — | 1095–1825 |
| Raspberries | — | — | May 6 | — | 365–730 |
| Serviceberries | — | — | May 6 | — | 730–1095 |
| Strawberries | — | — | May 6 | Aug 5 – Nov 18 | 90–365 |
🌿 Herbs to Grow in Lewis County
38 herbs that grow well in Zone 6a with planting dates for Lewis County.
Show all 38 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Mar 11 | Apr 1 | Apr 8 | — | 365–730 |
| Anise | Mar 11 | Apr 1 | Apr 8 | Jul 8 – Sep 23 | 90–120 |
| Basil | Feb 25 | Apr 22 | Apr 29 | Jun 24 – Aug 26 | 50–75 |
| Bee Balm | — | — | Apr 22 | Jul 22 – Oct 7 | 90–120 |
| Borage | Mar 11 | Apr 1 | Apr 8 | Jun 3 – Jul 22 | 50–60 |
| Caraway | Mar 11 | Apr 1 | Apr 8 | — | 365–450 |
| Catnip | — | — | Apr 22 | Jun 24 – Aug 26 | 60–80 |
| Chamomile | Mar 11 | Apr 1 | Apr 8 | Jun 10 – Aug 19 | 60–90 |
| Chervil | Mar 11 | Apr 1 | Apr 8 | May 20 – Jul 22 | 40–60 |
| Chives | — | — | Apr 22 | Jun 24 – Sep 2 | 60–90 |
| Cilantro | Mar 11 | Apr 1 | Apr 8 | May 20 – Jul 22 | 40–60 |
| Comfrey | — | — | Apr 22 | Jun 24 – Sep 2 | 60–90 |
| Cumin | Mar 11 | Apr 1 | Apr 8 | Jul 22 – Sep 23 | 100–120 |
| Dill | Mar 11 | Apr 1 | Apr 8 | May 20 – Jul 22 | 40–60 |
| Echinacea | — | — | Apr 22 | Aug 26 – Nov 4 | 120–180 |
| Epazote | Feb 25 | Apr 22 | Apr 29 | Jun 17 – Aug 12 | 45–60 |
| Fennel (herb) | Mar 11 | Apr 1 | Apr 8 | Jun 10 – Aug 19 | 60–90 |
| Feverfew | — | — | Apr 22 | Jul 22 – Oct 7 | 90–120 |
| Garlic Chives | — | — | Apr 22 | Jun 24 – Sep 2 | 60–90 |
| Horehound | — | — | Apr 22 | Jul 8 – Sep 2 | 75–90 |
| Hyssop | — | — | Apr 22 | Jul 1 – Sep 2 | 70–90 |
| Lavender | — | — | Apr 22 | Jul 22 – Nov 4 | 90–200 |
| Lemon Balm | — | — | Apr 22 | Jun 24 – Aug 12 | 60–70 |
| Lemon Thyme | — | — | Apr 22 | Jul 1 – Sep 2 | 70–90 |
| Lovage | — | — | Apr 22 | Jul 1 – Sep 2 | 70–90 |
| Marjoram | — | — | Apr 22 | Jun 24 – Sep 2 | 60–90 |
| Mint | — | — | Apr 22 | Jun 24 – Sep 2 | 60–90 |
| Oregano | — | — | Apr 22 | Jun 24 – Sep 2 | 60–90 |
| Parsley | Mar 11 | Apr 1 | Apr 8 | Jun 10 – Aug 12 | 60–80 |
| Rue | — | — | Apr 22 | Jul 1 – Sep 2 | 70–90 |
| Sage | — | — | Apr 22 | Jul 8 – Sep 2 | 75–90 |
| Savory | — | — | Apr 22 | Jun 17 – Aug 12 | 50–70 |
| Sorrel | Mar 11 | Apr 1 | Apr 8 | May 20 – Jul 22 | 40–60 |
| Tarragon | — | — | Apr 22 | Jun 24 – Sep 2 | 60–90 |
| Thai Basil | Feb 25 | Apr 22 | Apr 29 | Jun 24 – Aug 26 | 50–75 |
| Thyme | — | — | Apr 22 | Jul 1 – Sep 2 | 70–90 |
| Valerian | — | — | Apr 22 | Aug 26 – Nov 4 | 120–180 |
| Yarrow | — | — | Apr 22 | Jul 22 – Oct 7 | 90–120 |
Monthly Planting Guide for Lewis County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Lewis County.
Frequently Asked Questions
What planting zone is Lewis County, MO?
Lewis 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 Lewis County, MO?
Based on 31 years of NOAA weather station data, the median last spring frost in Lewis County falls around April 15. In 8 out of 10 years, last frost lands between April 5 and April 30 — a 25-day window of variability. Use April 30 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Lewis County, MO?
The median first fall frost in Lewis County arrives around October 17. In cold years it can arrive as early as October 5; in mild years as late as October 31. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Lewis County?
Lewis County has a frost-free growing season of approximately 185 days. This is enough time for most warm-season crops including tomatoes, peppers, and squash with proper timing. Climate records show the growing season is trending shorter by about 1.51 days per decade.
What is the soil like in Lewis County for gardening?
Lewis County has predominantly Silt Loam soil with a pH range of 5.3–6.8 and Somewhat Poorly Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Lewis County?
Lewis County has commercial agriculture that includes Soybeans, Corn, Hay. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Lewis County a good location for home gardening?
Lewis County scores 61/100 (Good) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Conditions here are moderate — most common crops grow well with standard timing and care.
Your Lewis County Garden Planner — Free
A 24-page printable planner built for Lewis 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