Lewis County, NY — Planting Guide
July to-do list for Lewis County, New York
Here's what deserves your attention in Lewis County, New York this month. Everything below is tailored to Zone 4b and timed around your local frost dates.
-
Start basil, peppers, and pole beans under lights
Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.
-
Collect basil, carrots, and cucumber at their peak
Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.
-
Kick off the fall garden with carrots, kale, and lettuce
Fall crops get sweeter with a light frost. Don't be afraid of cool nights.
To set up a strong August, finish these tasks
- First harvests: basil, carrots, and cucumber
- Fall sowing: alliums, crocus, and daffodils
Lewis County is in USDA Zone 4b. The average last spring frost is May 11 and the first fall frost is October 4, giving you a growing season of approximately 146 days.
At an elevation of 1,075 ft, Lewis County receives approximately 50 in of rainfall annually. Summer highs average 81°F with winter lows around 8°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 27 days year to year — ranging from April 26 in warm years to May 24 in cold years. The growing season is trending longer by about 4.1 days per decade. Lewis County scores 59/100 (Moderate) on the Microclimate Index.
🌡️ Zone
4b (-25°F to -20°F min)
❄️ Last Frost
May 11
🍂 First Frost
October 4
📅 Growing Season
146 days
⛰️ Elevation
1,075 ft
🌧️ Annual Rainfall
50 in
Monthly Watering Calendar for Lewis 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: In Lewis County, the watering question isn't "how often" — it's "is the soil moist 4 inches down?" Stick a finger in. Dry? Water. Damp? Wait. The 50" annual rainfall is just the starting context.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 3.7 in | 11 days | — | None |
| Feb | 3.7 in | 8 days | — | None |
| Mar | 3.7 in | 12 days | — | None |
| Apr | 3.9 in | 10 days | 0.4 in | Low |
| May | 4.3 in | 12 days | — | Low |
| Jun | 5.4 in | 9 days | — | Low |
| Jul | 4.6 in | 9 days | — | Low |
| Aug | 4.3 in | 11 days | — | Low |
| Sep | 4.8 in | 10 days | — | Low |
| Oct | 3.9 in | 8 days | 0.4 in | Low |
| Nov | 3.7 in | 9 days | — | None |
| Dec | 4.1 in | 11 days | — | None |
Annual total: 50.1 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
5-6.6
Drainage
Well Drained
Frost Risk Probability
Based on 31 years of NOAA weather station data from 3 stations
Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.
How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.
| Planting Strategy | Last Spring Frost | First Fall Frost | Frost-Free Days |
|---|---|---|---|
| Conservative (safest) | May 24 | Oct 20 | 149 days |
| Cautious | May 14 | Oct 11 | 150 days |
| Average year | May 11 | Oct 4 | 146 days |
| Optimistic | May 1 | Sep 30 | 152 days |
| Aggressive (risky) | Apr 26 | Sep 19 | 146 days |
Not very — frost dates can vary by ±27 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 longer here (about 4.1 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Lewis County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
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 Cornell Cooperative Extension Extension Office
Phone: 607-255-2237
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 NY" 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 NY" or check your extension office and local parks department. Facebook groups like "Lewis County Gardeners" or "New York 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 Lewis County
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Why it matters: The longest day at Lewis County's latitude gets longer the further north you go. Strawberries, garlic, onions all care. The shortest day gets shorter — which limits winter growing for greens without artificial light.
Longest Day
15.3 hours
Summer solstice daylight
Shortest Day
8.7 hours
Winter solstice daylight
Peak Sun Hours
8.8 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 | 9.1 hr | 3.4 hr | Short day |
| February | 10.3 hr | 4.4 hr | Short day |
| March | 11.6 hr | 5.3 hr | Short day |
| April | 13.2 hr | 6.1 hr | Neutral |
| May | 14.5 hr | 7.2 hr | Long day |
| June | 15.3 hr | 8.8 hr | Long day |
| July | 15 hr | 8.3 hr | Long day |
| August | 13.8 hr | 7.5 hr | Neutral |
| September | 12.3 hr | 6.2 hr | Neutral |
| October | 10.8 hr | 5.2 hr | Short day |
| November | 9.4 hr | 3.7 hr | Short day |
| December | 8.7 hr | 2.9 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Lewis County
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Why it matters: Cold soil = stunted starts. A bean seed planted in 55°F soil rots before it germinates. Same seed in 65°F soil sprouts in 5 days. Lewis County's soil temperature pattern shows you the difference month to month.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from Jun through Sep.
Best Month to Compost
Jun
Microbial activity peaks when soil is warm.
Active Composting
6 months
Solid season. Piles go dormant in winter.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 14°F | 24°F | ❄️ Dormant | ~36 weeks |
| Feb | 17°F | 22°F | ❄️ Dormant | ~36 weeks |
| Mar | 24°F | 30°F | ❄️ Dormant | ~36 weeks |
| Apr | 39°F | 39°F | ❄️ Dormant | ~36 weeks |
| May | 53°F | 51°F | ♻️ Active | ~14 weeks |
| Jun | 66°F | 58°F | 🔥 Peak | ~8 weeks |
| Jul | 71°F | 66°F | 🔥 Peak | ~8 weeks |
| Aug | 72°F | 70°F | 🔥 Peak | ~8 weeks |
| Sep | 67°F | 66°F | 🔥 Peak | ~8 weeks |
| Oct | 51°F | 55°F | ♻️ Active | ~14 weeks |
| Nov | 36°F | 43°F | ❄️ Dormant | ~36 weeks |
| Dec | 23°F | 32°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.
For new gardeners: Pest pressure is a function of climate, not effort. Lewis County's baseline tells you how much vigilance is normal. A bad pest year in low-pressure region = a normal year in high-pressure region.
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 5 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Cabbage worms | Low | Jun, Jul, Aug |
| Colorado potato beetle | Low | Jun, Jul |
| Flea beetles | Moderate | May, Jun, Jul |
| Slugs | Low | May, Jun, Jul, Aug, Sep |
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 Lewis County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
What this means for you: Cover crops are the experienced gardener's secret weapon. Lewis County's climate determines which species thrive: clover and vetch in mild winters, cereal rye and Austrian peas in cold ones.
Spring Cover Crops (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 15 | Aug 2 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | Apr 13 | Aug 2 | ✓ 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 31 | Sep 6 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (5 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Daikon radish | Aug 23 | Apr 27 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 23 | Apr 20 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 29 | Apr 27 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 5 | Apr 27 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jun 26 | Apr 27 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Lewis County
What this means for you: Wind shapes the garden you don't think about: bee paths, evaporation, structural stress on tomato cages. Lewis County's 9.4 mph background level is a baseline you should know before placing the tallest crops (sunflowers, pole beans, sweet corn).
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 13 mph Summer: 9 mph
Fall: 10 mph Winter: 13 mph
Prevailing wind: W. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
6.6/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (791 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting in Lewis 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: Rainwater scales linearly with roof area. A 2,000 sq ft roof in Lewis County captures ~1,200 gallons per 1" of rain — given 50" annual rainfall, that's thousands of gallons a year if you have storage to hold it.
Annual Collection
24,969 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 250 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
Feb, Mar, Nov
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 50.1 inches of rain per year
- A 1,000 sq ft roof can collect roughly 24,969 gallons annually
- Rainwater harvesting is fully legal in your state
- Your area gets ample rainfall — even small barrels make a big difference
- Consider a rain garden to handle overflow during heavy rainfall months
Soil & Growing Conditions in Lewis County
Soil Type
Silt Loam
Soil pH 5–6.6 · Well Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
Watering Needs
Drought stress: 1.5/10
Lewis County has very low drought pressure. Natural rainfall usually meets garden needs — water only during extended dry spells.
Season Tips
146-day frost-free season
Start warm-season crops indoors and focus on short-season varieties. Cold frames extend your season by 3–4 weeks in fall.
Your Free Printable Garden Planner
Plan every bed, every planting, every harvest — in one place. This 22-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.
Recommended for Your Garden
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Get instant, accurate soil pH readings to fine-tune your amendments.
Boost soil fertility and structure with rich, well-aged organic compost.
🥬 Vegetables to Grow in Lewis County
95 vegetables that grow well in Zone 4b with planting dates for Lewis County.
Show all 95 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 30 | May 25 | Jun 1 | — | Aug 24 – Sep 28 | 80–100 |
| Amaranth | Mar 9 | May 25 | Jun 1 | — | Aug 31 – Oct 19 | 90–120 |
| Arugula | Mar 30 | May 4 | May 11 | Jul 12 | Jun 15 – Aug 17 | 30–50 |
| Asparagus | — | — | May 25 | — | — | 730–1095 |
| Beets | — | May 4 | — | Jul 12 | Jun 29 – Jul 27 | 50–70 |
| Belgian Endive | Mar 30 | May 4 | May 11 | Jul 12 | Aug 31 – Oct 5 | 110–150 |
| Black Beans | — | May 25 | — | — | Aug 24 – Oct 12 | 90–120 |
| Bok Choy | Mar 30 | May 4 | May 11 | Jul 12 | Jun 22 – Jul 27 | 40–60 |
| Broccoli | Mar 30 | May 4 | May 11 | Jul 12 | Jul 13 – Aug 24 | 60–90 |
| Broccoli Rabe | Mar 30 | May 4 | May 11 | Jul 12 | Jun 22 – Jul 27 | 40–60 |
| Brussels Sprouts | Mar 30 | May 4 | May 11 | Jul 12 | Aug 10 – Oct 5 | 90–130 |
| Butternut Squash | Mar 30 | May 25 | Jun 1 | — | Aug 31 – Oct 5 | 85–110 |
| Cabbage | Mar 30 | May 4 | May 11 | Jul 12 | Jul 13 – Sep 7 | 60–100 |
| Carrots | — | May 4 | — | Jul 12 | Jul 6 – Aug 10 | 60–80 |
| Cauliflower | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Sep 7 | 55–100 |
| Celeriac | Mar 30 | May 4 | May 11 | Jul 12 | Aug 24 – Sep 28 | 100–120 |
| Celery | Mar 30 | May 4 | May 11 | Jul 12 | Aug 3 – Sep 28 | 80–120 |
| Celtuce | Mar 30 | May 4 | May 11 | Jul 12 | Jul 13 – Aug 24 | 60–90 |
| Chard | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Aug 24 | 50–60 |
| Chickpeas | Mar 30 | May 4 | May 11 | Jul 12 | Aug 3 – Sep 14 | 80–110 |
| Chicory | Mar 30 | May 4 | May 11 | Jul 12 | Jul 13 – Aug 24 | 60–85 |
| Chinese Cabbage | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Aug 3 | 50–70 |
| Christmas Lima Beans | Mar 9 | May 25 | Jun 1 | — | Aug 24 – Sep 28 | 80–100 |
| Collard Greens | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Sep 7 | 55–75 |
| Corn | — | May 25 | — | — | Jul 27 – Sep 21 | 60–100 |
| Cress | Mar 30 | May 4 | May 11 | Jul 12 | May 25 – Jun 15 | 14–21 |
| Crookneck Squash | Mar 30 | May 25 | Jun 1 | — | Jul 20 – Aug 17 | 45–60 |
| Crosne | — | May 4 | — | Jul 12 | Oct 5 – Sep 28 | 150–200 |
| Cucumber | Mar 30 | May 25 | Jun 1 | — | Jul 27 – Sep 21 | 50–70 |
| Daikon | — | May 4 | — | Jul 12 | Jun 29 – Jul 27 | 50–70 |
| Delicata Squash | Mar 30 | May 25 | Jun 1 | — | Aug 24 – Sep 28 | 80–100 |
| Edamame | — | May 25 | — | — | Aug 10 – Sep 21 | 75–100 |
| Endive | Mar 30 | May 4 | May 11 | Jul 12 | Jun 29 – Aug 3 | 45–65 |
| Escarole | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Aug 3 | 50–70 |
| Fava Beans | Mar 30 | May 4 | May 11 | Jul 12 | Jul 27 – Sep 7 | 75–100 |
| Fennel | Mar 9 | May 25 | Jun 1 | — | Aug 3 – Sep 14 | 60–90 |
| Garlic | — | — | — | Aug 23 | Nov 22 – Jan 17 | 90–240 |
| Green Beans | — | May 25 | — | — | Jul 20 – Sep 14 | 50–65 |
| Horseradish | — | — | May 25 | — | Sep 28 – Oct 19 | 120–180 |
| Hubbard Squash | Mar 30 | May 25 | Jun 1 | — | Sep 14 – Oct 19 | 100–120 |
| Kabocha | Mar 30 | May 25 | Jun 1 | — | Aug 31 – Sep 28 | 85–100 |
| Kai Lan | Mar 30 | May 4 | May 11 | Jul 12 | Jun 29 – Jul 27 | 45–60 |
| Kale | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Aug 31 | 50–70 |
| Kidney Beans | — | May 25 | — | — | Aug 24 – Sep 28 | 85–110 |
| Kohlrabi | Mar 30 | May 4 | May 11 | Jul 12 | Jun 29 – Aug 3 | 45–65 |
| Komatsuna | Mar 30 | May 4 | May 11 | Jul 12 | Jun 15 – Jul 20 | 35–50 |
| Leeks | Mar 30 | May 4 | May 11 | Jul 12 | Aug 10 – Oct 5 | 90–150 |
| Lentils | Mar 30 | May 4 | May 11 | Jul 12 | Aug 3 – Sep 14 | 80–110 |
| Lettuce | Mar 30 | May 4 | May 11 | Jul 12 | Jun 15 – Aug 24 | 30–60 |
| Lima Beans | — | May 25 | — | — | Jul 27 – Sep 7 | 60–90 |
| Mache | Mar 30 | May 4 | May 11 | Jul 12 | Jun 22 – Jul 27 | 40–60 |
| Melon | Mar 30 | May 25 | Jun 1 | — | Aug 10 – Sep 28 | 70–100 |
| Microgreens | Mar 30 | May 4 | May 11 | Jul 12 | May 18 – Jun 15 | 7–21 |
| Mitsuba | Mar 30 | May 4 | May 4 | Jul 12 | Jun 29 – Aug 24 | 50–70 |
| Mizuna | Mar 30 | May 4 | May 11 | Jul 12 | Jun 15 – Jul 13 | 30–45 |
| Mustard Greens | Mar 30 | May 4 | May 11 | Jul 12 | Jun 15 – Aug 17 | 30–50 |
| Napa Cabbage | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Aug 10 | 55–75 |
| Onion | Mar 30 | May 4 | May 11 | Jul 12 | Aug 10 – Sep 28 | 90–120 |
| Pac Choi | Mar 30 | May 4 | May 11 | Jul 12 | Jun 22 – Jul 20 | 40–55 |
| Parsnip | — | May 4 | — | Jul 12 | Aug 17 – Sep 28 | 100–130 |
| Patty Pan Squash | Mar 30 | May 25 | Jun 1 | — | Jul 20 – Aug 17 | 45–60 |
| Peas | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Aug 31 | 55–70 |
| Peppers | Feb 23 | May 25 | Jun 1 | — | Aug 3 – Oct 12 | 60–90 |
| Pole Beans | Mar 9 | May 25 | Jun 1 | — | Jul 27 – Sep 21 | 55–70 |
| Potatoes | Mar 9 | May 25 | Jun 1 | — | Aug 10 – Oct 19 | 70–120 |
| Pumpkin | Mar 30 | May 25 | Jun 1 | — | Aug 31 – Oct 19 | 85–120 |
| Purslane | Mar 30 | May 4 | May 11 | Jul 12 | Jun 22 – Jul 27 | 40–60 |
| Radicchio | Mar 30 | May 4 | May 11 | Jul 12 | Jul 13 – Aug 17 | 60–80 |
| Radish | — | May 4 | — | Jul 12 | Jun 1 – Jun 22 | 22–35 |
| Rhubarb | — | — | Jun 8 | — | — | 365–730 |
| Romanesco | Mar 30 | May 4 | May 11 | Jul 12 | Jul 27 – Sep 7 | 75–100 |
| Rutabaga | — | May 4 | — | Jul 12 | Jul 27 – Aug 31 | 80–100 |
| Salsify | — | May 4 | — | Jul 12 | Aug 17 – Sep 28 | 100–130 |
| Savoy Cabbage | Mar 30 | May 4 | May 11 | Jul 12 | Jul 20 – Sep 14 | 70–110 |
| Scallions | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Aug 3 | 50–70 |
| Scarlet Runner Beans | Mar 9 | May 25 | Jun 1 | — | Aug 3 – Sep 7 | 60–80 |
| Shallot | Mar 30 | May 4 | May 11 | Jul 12 | Aug 10 – Sep 28 | 90–120 |
| Shiso | Mar 16 | May 18 | Jun 1 | — | Jul 27 – Sep 21 | 50–70 |
| Snap Peas | Mar 9 | May 25 | Jun 1 | — | Jul 27 – Sep 21 | 55–70 |
| Snow Peas | Mar 30 | May 4 | May 11 | Jul 12 | Jul 6 – Aug 31 | 50–65 |
| Soybeans | — | May 25 | — | — | Aug 17 – Oct 12 | 80–120 |
| Spaghetti Squash | Mar 30 | May 25 | Jun 1 | — | Aug 31 – Sep 28 | 85–100 |
| Spinach | Mar 30 | May 4 | May 11 | Jul 12 | Jun 15 – Aug 17 | 35–50 |
| Squash (Summer) | Mar 30 | May 25 | Jun 1 | — | Jul 20 – Sep 21 | 45–65 |
| Squash (Winter) | Mar 30 | May 25 | Jun 1 | — | Aug 24 – Oct 19 | 80–120 |
| Sunchoke | — | — | May 25 | — | Sep 14 – Oct 19 | 110–150 |
| Sweet Corn | — | May 25 | — | — | Jul 27 – Sep 7 | 60–90 |
| Tatsoi | Mar 30 | May 4 | May 11 | Jul 12 | Jun 15 – Jul 20 | 35–50 |
| Tomatillo | Mar 9 | May 25 | Jun 1 | — | Aug 3 – Oct 12 | 60–85 |
| Tomatoes | Mar 9 | May 25 | Jun 1 | — | Aug 3 – Oct 12 | 60–85 |
| Turnip | — | May 4 | — | Jul 12 | Jun 15 – Jul 20 | 40–60 |
| Watercress | Mar 30 | May 4 | May 11 | Jul 12 | Jun 22 – Jul 27 | 40–60 |
| Watermelon | Mar 30 | May 25 | Jun 1 | — | Aug 10 – Sep 28 | 70–100 |
| Wax Beans | — | May 25 | — | — | Jul 20 – Sep 14 | 50–65 |
| Zucchini | Mar 30 | May 25 | Jun 1 | — | Jul 20 – Sep 14 | 45–60 |
🍓 Fruits to Grow in Lewis County
22 fruits that grow well in Zone 4b with planting dates for Lewis County.
Show all 22 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 8 | — | Sep 7 – Nov 2 | 90–180 |
| Aronia | — | — | Jun 8 | — | — | 730–1095 |
| Blueberries | — | — | Jun 8 | — | — | 730–1095 |
| Cantaloupe | — | — | Jun 8 | — | Aug 17 – Sep 21 | 70–90 |
| Cranberries | — | — | Jun 8 | — | — | 730–1095 |
| Currants | — | — | Jun 8 | — | — | 730–1095 |
| Elderberries | — | — | Jun 8 | — | — | 730–1095 |
| Goji Berries | — | — | Jun 8 | — | — | 730–1095 |
| Gooseberries | — | — | Jun 8 | — | — | 730–1095 |
| Grapes | — | — | Jun 8 | — | — | 730–1095 |
| Ground Cherry | — | — | Jun 8 | — | Aug 17 – Oct 12 | 65–80 |
| Hardy Kiwi | — | — | Jun 8 | — | — | 1095–1825 |
| Haskaps | — | — | Jun 8 | — | — | 730–1095 |
| Honeydew | — | — | Jun 8 | — | Aug 31 – Oct 12 | 80–110 |
| Jostaberry | — | — | Jun 8 | — | — | 730–1095 |
| Lingonberries | — | — | Jun 8 | — | — | 730–1095 |
| Medlar | — | — | Jun 8 | — | — | 1095–1825 |
| Mulberries | — | — | Jun 8 | — | — | 730–1825 |
| Persimmon | — | — | Jun 8 | — | — | 1095–2555 |
| Raspberries | — | — | Jun 8 | — | — | 365–730 |
| Serviceberries | — | — | Jun 8 | — | — | 730–1095 |
| Strawberries | — | — | Jun 8 | — | Sep 7 – Nov 2 | 90–365 |
🌿 Herbs to Grow in Lewis County
30 herbs that grow well in Zone 4b with planting dates for Lewis County.
Show all 30 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 30 | May 4 | May 4 | Jul 12 | — | 365–730 |
| Anise | Mar 30 | May 4 | May 4 | Jul 12 | Aug 3 – Sep 28 | 90–120 |
| Basil | Mar 16 | May 18 | Jun 1 | — | Jul 27 – Sep 28 | 50–75 |
| Bee Balm | — | — | May 18 | — | Aug 17 – Oct 12 | 90–120 |
| Borage | Mar 30 | May 4 | May 4 | Jul 12 | Jun 29 – Aug 17 | 50–60 |
| Caraway | Mar 30 | May 4 | May 4 | Jul 12 | — | 365–450 |
| Catnip | — | — | May 18 | — | Jul 20 – Sep 21 | 60–80 |
| Chamomile | Mar 30 | May 4 | May 4 | Jul 12 | Jul 6 – Sep 14 | 60–90 |
| Chervil | Mar 30 | May 4 | May 4 | Jul 12 | Jun 15 – Aug 17 | 40–60 |
| Chives | — | — | May 18 | — | Jul 20 – Sep 28 | 60–90 |
| Cilantro | Mar 30 | May 4 | May 4 | Jul 12 | Jun 15 – Aug 17 | 40–60 |
| Comfrey | — | — | May 18 | — | Jul 20 – Sep 28 | 60–90 |
| Dill | Mar 30 | May 4 | May 4 | Jul 12 | Jun 15 – Aug 17 | 40–60 |
| Fennel (herb) | Mar 30 | May 4 | May 4 | Jul 12 | Jul 6 – Sep 14 | 60–90 |
| Garlic Chives | — | — | May 18 | — | Jul 20 – Sep 28 | 60–90 |
| Horehound | — | — | May 18 | — | Aug 3 – Sep 28 | 75–90 |
| Hyssop | — | — | May 18 | — | Jul 27 – Sep 28 | 70–90 |
| Lemon Balm | — | — | May 18 | — | Jul 20 – Sep 7 | 60–70 |
| Lovage | — | — | May 18 | — | Jul 27 – Sep 28 | 70–90 |
| Mint | — | — | May 18 | — | Jul 20 – Sep 28 | 60–90 |
| Oregano | — | — | May 18 | — | Jul 20 – Sep 28 | 60–90 |
| Parsley | Mar 30 | May 4 | May 4 | Jul 12 | Jul 6 – Sep 7 | 60–80 |
| Rue | — | — | May 18 | — | Jul 27 – Sep 28 | 70–90 |
| Sage | — | — | May 18 | — | Aug 3 – Sep 28 | 75–90 |
| Savory | — | — | May 18 | — | Jul 13 – Sep 7 | 50–70 |
| Sorrel | Mar 30 | May 4 | May 4 | Jul 12 | Jun 15 – Aug 17 | 40–60 |
| Tarragon | — | — | May 18 | — | Jul 20 – Sep 28 | 60–90 |
| Thai Basil | Mar 16 | May 18 | Jun 1 | — | Jul 27 – Sep 28 | 50–75 |
| Thyme | — | — | May 18 | — | Jul 27 – Sep 28 | 70–90 |
| Valerian | — | — | May 18 | — | Sep 21 – Oct 12 | 120–180 |
🌸 Flowers to Grow in Lewis County
49 flowers that grow well in Zone 4b with planting dates for Lewis County.
Show all 49 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 23 | May 18 | May 18 | — | Jul 13 – Sep 28 | 60–75 |
| Alliums | — | — | — | Aug 23 | Sep 27 – Oct 25 | 28–42 |
| Astilbe | Mar 2 | — | May 25 | — | Aug 17 – Oct 12 | 70–100 |
| Bachelor's Button | Mar 23 | Apr 27 | May 11 | — | Jul 13 – Sep 14 | 60–90 |
| Begonias | Feb 23 | — | May 18 | — | Jul 27 – Oct 5 | 70–90 |
| Black-eyed Susan | Mar 2 | May 11 | May 25 | — | Aug 17 – Nov 2 | 60–80 |
| Bleeding Hearts | Mar 2 | — | May 25 | — | Jul 20 – Aug 31 | 60–90 |
| Calendula | Mar 23 | Apr 27 | May 11 | — | Jun 29 – Sep 14 | 50–70 |
| Celosia | Apr 6 | May 25 | May 25 | — | Jul 27 – Oct 12 | 60–90 |
| Columbine | Mar 2 | May 25 | May 25 | — | Jul 20 – Sep 7 | 70–100 |
| Coreopsis | Mar 2 | May 18 | May 25 | — | Aug 10 – Nov 2 | 60–80 |
| Cosmos | Apr 13 | May 18 | May 18 | — | Jul 27 – Oct 19 | 60–90 |
| Crocus | — | — | — | Aug 23 | Jun 28 – Jul 26 | 10–20 |
| Daffodils | — | — | — | Aug 23 | Jul 5 – Aug 2 | 20–40 |
| Dahlias | Apr 13 | May 25 | May 25 | — | Aug 24 – Nov 2 | 70–120 |
| Daylily | Mar 2 | — | May 25 | — | Aug 24 – Nov 2 | 60–90 |
| Dianthus | Mar 9 | Apr 20 | May 4 | — | Jun 22 – Aug 31 | 60–80 |
| Echinacea (Purple Coneflower) | Mar 2 | May 25 | May 25 | — | Aug 24 – Nov 2 | 70–90 |
| Foxglove | Mar 2 | May 25 | May 25 | — | Jul 20 – Aug 31 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 16 | May 25 | May 25 | — | Aug 3 – Nov 9 | 70–100 |
| Geraniums | Feb 23 | — | May 18 | — | Jul 27 – Oct 5 | 70–100 |
| Gladiolus | — | May 18 | May 18 | — | Aug 17 – Oct 26 | 70–100 |
| Hostas | Feb 23 | — | May 25 | — | Aug 24 – Nov 2 | 60–90 |
| Hyacinths | — | — | — | Aug 23 | Jul 26 – Aug 16 | 14–28 |
| Hydrangeas | Feb 23 | — | May 25 | — | Aug 17 – Oct 19 | 90–150 |
| Impatiens | Mar 9 | — | May 25 | — | Aug 10 – Oct 12 | 60–75 |
| Irises | — | Division | May 25 | — | Jul 20 – Aug 24 | 60–100 |
| Larkspur | — | Apr 13 | — | — | Jun 22 – Aug 10 | 60–90 |
| Lilies | — | Division | May 25 | — | Aug 17 – Oct 19 | 70–120 |
| Lobelia | Mar 2 | — | May 11 | — | Jul 6 – Sep 7 | 70–80 |
| Lupine | Mar 2 | May 25 | May 25 | — | Jul 20 – Aug 31 | 75–100 |
| Marigolds | Mar 30 | May 18 | May 18 | — | Jul 13 – Sep 28 | 50–70 |
| Nasturtium | Apr 13 | May 18 | May 18 | — | Jul 13 – Oct 5 | 55–65 |
| Pansy | Feb 23 | — | May 11 | — | Jul 6 – Aug 24 | 70–90 |
| Peonies | — | Division | May 25 | — | Aug 3 – Sep 7 | 90–120 |
| Petunia | Mar 9 | — | May 18 | — | Jul 27 – Oct 12 | 70–90 |
| Phlox | Mar 2 | May 25 | May 25 | — | Aug 17 – Oct 26 | 80–110 |
| Portulaca | Apr 6 | May 25 | May 25 | — | Jul 13 – Sep 28 | 50–70 |
| Roses | Feb 23 | — | May 25 | — | Aug 17 – Nov 2 | 90–180 |
| Salvia | Mar 9 | — | May 18 | — | Jul 27 – Oct 5 | 70–90 |
| Sedum (Stonecrop) | Mar 2 | — | May 25 | — | Sep 28 – Nov 23 | 60–90 |
| Snapdragon | Mar 2 | — | May 11 | — | Jul 20 – Sep 14 | 70–100 |
| Sunflower | Apr 20 | May 18 | May 18 | — | Aug 10 – Oct 12 | 70–100 |
| Sweet Alyssum | Mar 23 | May 4 | May 11 | — | Jun 22 – Aug 24 | 45–60 |
| Sweet Pea | Mar 30 | Apr 6 | May 11 | — | Aug 3 – Sep 21 | 65–85 |
| Tulips | — | — | — | Aug 23 | Jul 19 – Aug 9 | 15–30 |
| Vinca (Annual) | Feb 23 | — | May 25 | — | Aug 3 – Oct 12 | 70–90 |
| Yarrow | Mar 2 | May 11 | May 25 | — | Aug 10 – Nov 2 | 60–90 |
| Zinnia | Apr 13 | May 18 | May 18 | — | Jul 27 – Oct 12 | 60–70 |
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, NY?
Lewis County is in USDA Hardiness Zone 4b. 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, NY?
Based on 31 years of NOAA weather station data, the median last spring frost in Lewis County falls around May 11. In 8 out of 10 years, last frost lands between April 26 and May 24 — a 27-day window of variability. Use May 24 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Lewis County, NY?
The median first fall frost in Lewis County arrives around October 4. In cold years it can arrive as early as September 19; in mild years as late as October 20. 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 146 days. Focus on short-season varieties and start warm-season crops indoors 6–8 weeks before last frost. Climate records show the growing season is trending longer by about 4.1 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 5–6.6 and Well 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 Dairy, Hay, Corn, Apples. 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 59/100 (Moderate) 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 22-page printable planner built for Lewis County (Zone 4b). 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