Latimer County, OK — Planting Guide
Latimer County is in USDA Zone 7b. The average last spring frost is April 5 and the first fall frost is October 31, giving you a growing season of approximately 209 days.
At an elevation of 773 ft, Latimer County receives approximately 33.6 in of rainfall annually. Summer highs average 89°F with winter lows around 34°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 42 days year to year — ranging from March 11 in warm years to April 22 in cold years. Latimer County scores 72/100 (Good) on the Microclimate Index.
🌡️ Zone
7b (5°F to 10°F min)
❄️ Last Frost
April 5
🍂 First Frost
October 31
📅 Growing Season
209 days
⛰️ Elevation
773 ft
🌧️ Annual Rainfall
33.6 in
Monthly Watering Calendar for Latimer 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: Over-watering kills more plants than under-watering. Latimer County's 34" annual rainfall changes the gardening playbook — humid-region gardeners often water by the calendar when they should water by the soil moisture.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 0.9 in | 3 days | — | None |
| Feb | 1.2 in | 4 days | — | None |
| Mar | 2.2 in | 5 days | 2.1 in | High |
| Apr | 3.8 in | 8 days | 0.5 in | Low |
| May | 5.6 in | 9 days | — | Low |
| Jun | 4.7 in | 8 days | — | Low |
| Jul | 4.6 in | 7 days | — | Low |
| Aug | 3.5 in | 7 days | 0.8 in | Moderate |
| Sep | 3 in | 6 days | 1.3 in | Moderate |
| Oct | 2.2 in | 4 days | 2.1 in | High |
| Nov | 1 in | 4 days | — | None |
| Dec | 0.8 in | 4 days | — | None |
Annual total: 33.5 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.
Latimer County Soil Profile
Soil Type
Loam
Soil pH
6.5-7.2
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 22 | Nov 21 | 213 days |
| Cautious | Apr 14 | Nov 6 | 206 days |
| Average year | Apr 5 | Oct 31 | 209 days |
| Optimistic | Mar 25 | Oct 25 | 214 days |
| Aggressive (risky) | Mar 11 | Oct 17 | 220 days |
Not very — frost dates can vary by ±42 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Slightly — seasons are trending a bit shorter (0.4 days/decade). Stay conservative with planting dates.
Gardening Difficulty Score
Latimer County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Latimer 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 Latimer County's climate and soil.
County Extension Office
Latimer County Oklahoma State University Extension Extension Office
Phone: 405-744-5398
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 Latimer County
Finding local nurseries & garden centers in Latimer County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Latimer 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 Latimer County OK" or "garden center Latimer 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 Latimer County OK" or check your extension office and local parks department. Facebook groups like "Latimer County Gardeners" or "Oklahoma 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 Latimer County
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
For new gardeners: Photoperiod-sensitive crops will fail spectacularly if planted at the wrong latitude. Sweet onions in Michigan? Tiny. Spanish onions in Florida? Tiny. Match variety to Latimer County's daylight pattern and you'll see the difference.
Longest Day
14.3 hours
Summer solstice daylight
Shortest Day
9.7 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: Day-neutral onion varieties like Candy, Cabernet, and Sierra Blanca perform best in your day-length range.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 9.9 hr | 5.4 hr | Short day |
| February | 10.7 hr | 6 hr | Short day |
| March | 11.7 hr | 7 hr | Short day |
| April | 12.9 hr | 7.9 hr | Neutral |
| May | 13.8 hr | 8.6 hr | Neutral |
| June | 14.3 hr | 9.5 hr | Long day |
| July | 14.1 hr | 10.4 hr | Long day |
| August | 13.3 hr | 9.3 hr | Neutral |
| September | 12.2 hr | 8.6 hr | Neutral |
| October | 11.1 hr | 7.1 hr | Short day |
| November | 10.1 hr | 5.6 hr | Short day |
| December | 9.7 hr | 5.3 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Latimer County
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
What this means for you: Soil heats slower than air in spring and cools slower in fall. That's why "warm" April air doesn't mean "plant tomatoes" — soil still trails by weeks. Latimer County's monthly soil curve makes the lag visible.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from May through Oct.
Best Month to Compost
May
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 | 38°F | 45°F | ❄️ Dormant | ~36 weeks |
| Feb | 39°F | 44°F | ❄️ Dormant | ~36 weeks |
| Mar | 47°F | 48°F | 🐢 Slow | ~24 weeks |
| Apr | 58°F | 57°F | ♻️ Active | ~14 weeks |
| May | 70°F | 65°F | 🔥 Peak | ~8 weeks |
| Jun | 77°F | 74°F | 🔥 Peak | ~8 weeks |
| Jul | 87°F | 80°F | 🔥 Peak | ~8 weeks |
| Aug | 86°F | 84°F | 🔥 Peak | ~8 weeks |
| Sep | 80°F | 81°F | 🔥 Peak | ~8 weeks |
| Oct | 70°F | 71°F | 🔥 Peak | ~8 weeks |
| Nov | 55°F | 62°F | ♻️ Active | ~14 weeks |
| Dec | 44°F | 53°F | 🐢 Slow | ~24 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Latimer County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
For new gardeners: Pest and disease pressure is the X-factor most beginners under-plan for. Latimer 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
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | High | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash vine borers | High | May, Jun, Jul |
| Stink bugs | Moderate | May, Jun, Jul, Aug, Sep |
| Whiteflies | Moderate | Jun, Jul, Aug, Sep |
| Spider mites | Moderate | Jul, Aug |
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 Latimer County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Why this matters: You don't need a farm to use cover crops. A 4x8 raised bed accepts cover crops just as well as a half-acre. Latimer County's climate determines the calendar; the principle is universal.
Spring Cover Crops (4 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 11 | Sep 5 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Apr 11 | Aug 29 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Apr 14 | Aug 22 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 7 | Sep 5 | ✓ Yes | Living mulch, fixes nitrogen, permanent ground cover |
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Sunflowers | Apr 25 | Oct 17 | — | 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 23 | Mar 15 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Sep 5 | Mar 22 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Sep 5 | Mar 22 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 7 | Mar 15 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 26 | Mar 15 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Aug 2 | Mar 15 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Aug 7 | Mar 15 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Latimer County
Why it matters: Why care about wind? Above about 10 mph, evaporation jumps and pollinators struggle to land on flowers. Latimer County's 11.3 mph average means you can plant tall crops without much support, but it doesn't mean ignore wind — a 20+ mph storm still snaps unstaked tomatoes.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 16 mph Summer: 11 mph
Fall: 13 mph Winter: 15 mph
Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.
Windbreak Benefit
7.1/10
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 (183 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Latimer County
How much water you can collect, when to collect it, and what size system you need for your garden.
Why this matters: The first inch of rain washes the roof clean — a first-flush diverter sends it to waste before the barrel fills. Worth the extra $20 for cleaner garden water. Latimer County gets 34" annually, so you'll fill and flush many times per year.
Annual Collection
16,696 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
6 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 2,000 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Apr, May, Jun, Jul
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Dec
Dry months when you'll rely on stored water — size your storage for this gap.
Rainwater collection tips for your area
- Your county receives approximately 33.5 inches of rain per year
- A 1,000 sq ft roof can collect roughly 16,696 gallons annually
- Rainwater harvesting is fully legal in your state
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Latimer County
Soil Type
Loam
Soil pH 6.5–7.2 · Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 5.5/10
Moderate drought pressure. Drip irrigation and mulching are highly recommended to maintain soil moisture through summer.
Season Tips
209-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.
Monthly Planting Guide for Latimer County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Latimer County.
Frequently Asked Questions
What planting zone is Latimer County, OK?
Latimer County is in USDA Hardiness Zone 7b. 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 Latimer County, OK?
Based on 31 years of NOAA weather station data, the median last spring frost in Latimer County falls around April 5. In 8 out of 10 years, last frost lands between March 11 and April 22 — a 42-day window of variability. Use April 22 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Latimer County, OK?
The median first fall frost in Latimer County arrives around October 31. In cold years it can arrive as early as October 17; in mild years as late as November 21. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Latimer County?
Latimer County has a frost-free growing season of approximately 209 days. This long season supports multiple succession plantings and warm-season crops that need extended heat, like sweet potatoes and melons.
What is the soil like in Latimer County for gardening?
Latimer County has predominantly Loam soil with a pH range of 6.5–7.2 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Latimer County?
Latimer County has commercial agriculture that includes Wheat, Cattle, Hay, Cotton, Sorghum. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Latimer County a good location for home gardening?
Latimer County scores 72/100 (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 Latimer County Garden Planner — Free
A 22-page printable planner built for Latimer County (Zone 7b). 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