Seneca, OR — Planting Guide for June
Free PDF, personalized for your town's frost dates & climate. Drop your email — we'll send the link.
June to-do list for Grant County, Oregon
June is a pivotal month for Grant County, Oregon gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Get basil, cucumber, and kale in the ground
Plant tomatoes deep — bury the stem up to the first true leaves to grow extra roots. Everything else goes in at the same depth it grew in the tray.
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Plant basil, cucumber, and green beans from seed, right in the garden
Thin ruthlessly once seedlings are up. Crowded roots mean smaller crops from every plant.
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Begin indoor sowing: sunflower
Label every cell. You will absolutely forget which is which otherwise.
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Collect radish, cress, and microgreens at their peak
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
Coming up in July — start thinking about
- Starting indoors: basil, cucumber, and kale
- First harvests: carrots, lettuce, and radish
- Fall sowing: carrots, kale, and lettuce
Seneca gardens in a dry climate (only 19" annual precipitation). Watering strategy matters more here than in most of the country — drip irrigation, deep mulching, and morning watering aren't optional, they're table stakes. The flip side: pest and disease pressure are far lower than in humid regions, and your soil temperatures climb fast in spring so you can plant heat-lovers earlier than the zone map suggests.
Soils trend Silt Loam — the gold standard for vegetables. Add 2–3" of compost annually to maintain it and you'll outgrow most of your neighbors.
Seneca averages 36.6 drought weeks per year (US Drought Monitor, 2000–present, trend stable). Treat irrigation as a year-round system, not a summer add-on.
🌡️ USDA Zone
6b (-5°F to 0°F min)
❄️ Avg. Last Frost
June 6
🍂 Avg. First Frost
September 10
📅 Growing Season
96 days
🌧️ Climate
Semi Arid 19.0" annual
💨 Wind
Unknown 0.0 mph avg
🥶 Frost Tier
Regular 0% frost-free years
🏜️ Drought
36.6 wk/yr trend stable
📍 ZIP Codes
1 ZIP
Monthly Watering Calendar for Seneca
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
What this means for you: Watering by the calendar wastes water. Watering by the soil moisture (or by a free rain gauge) cuts your water use 30%+ and produces healthier roots. Seneca's 19" annual baseline is the starting point.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 3.2 in | 16 days | — | None |
| Feb | 2.9 in | 14 days | — | None |
| Mar | 2.3 in | 17 days | — | None |
| Apr | 1.5 in | 11 days | 2.8 in | High |
| May | 1.3 in | 10 days | 3 in | High |
| Jun | 0.8 in | 7 days | 3.5 in | Critical |
| Jul | 0.4 in | 3 days | 3.9 in | Critical |
| Aug | 0.4 in | 2 days | 3.9 in | Critical |
| Sep | 0.9 in | 4 days | 3.4 in | Critical |
| Oct | 1.8 in | 11 days | 2.5 in | High |
| Nov | 3.1 in | 18 days | — | None |
| Dec | 3.9 in | 18 days | — | None |
Annual total: 22.5 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.
Seneca Soil Profile
Soil Type
Silt Loam
Soil pH
5.4-6.4
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) | Jun 26 | Oct 4 | 100 days |
| Cautious | Jun 19 | Sep 20 | 93 days |
| Average year | Jun 6 | Sep 10 | 96 days |
| Optimistic | May 20 | Aug 16 | 88 days |
| Aggressive (risky) | May 6 | Aug 4 | 90 days |
Not very — frost dates can vary by ±50 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 5.9 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Grant County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Grant 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 Grant County's climate and soil.
County Extension Office
Grant County Oregon State University Extension Extension Office
Phone: 541-737-2713
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 Grant County
Finding local nurseries & garden centers in Grant County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Grant 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 Grant County OR" or "garden center Grant 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 Grant County OR" or check your extension office and local parks department. Facebook groups like "Grant County Gardeners" or "Oregon 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.
Sunlight & Day Length in Seneca
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
What this means for you: You can't change the sun. Picking the right day-length-matched varieties for Seneca matters more than any other "fix" you make — and the seed packet tells you (look for "long-day," "short-day," "day-neutral").
Longest Day
15.3 hours
Summer solstice daylight
Shortest Day
8.7 hours
Winter solstice daylight
Peak Sun Hours
10 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 hr | 2.2 hr | Short day |
| February | 10.2 hr | 3 hr | Short day |
| March | 11.6 hr | 4.2 hr | Short day |
| April | 13.2 hr | 5.5 hr | Neutral |
| May | 14.6 hr | 7.3 hr | Long day |
| June | 15.3 hr | 8.6 hr | Long day |
| July | 15 hr | 10 hr | Long day |
| August | 13.9 hr | 9 hr | Neutral |
| September | 12.3 hr | 7 hr | Neutral |
| October | 10.7 hr | 4.1 hr | Short day |
| November | 9.3 hr | 2.2 hr | Short day |
| December | 8.7 hr | 2 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Seneca
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Quick context: Soil temperature predicts plant emergence better than calendar dates. Seneca's spring soil warm-up curve tells you which weeks are safe for direct-sow beans, cucumbers, squash, and corn.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from Jun through Sep.
Best Month to Compost
Jul
Microbial activity peaks when soil is warm.
Active Composting
5 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 | 15°F | 24°F | ❄️ Dormant | ~36 weeks |
| Feb | 19°F | 23°F | ❄️ Dormant | ~36 weeks |
| Mar | 25°F | 29°F | ❄️ Dormant | ~36 weeks |
| Apr | 37°F | 36°F | ❄️ Dormant | ~36 weeks |
| May | 51°F | 49°F | ♻️ Active | ~14 weeks |
| Jun | 61°F | 58°F | ♻️ Active | ~14 weeks |
| Jul | 70°F | 64°F | 🔥 Peak | ~8 weeks |
| Aug | 71°F | 66°F | 🔥 Peak | ~8 weeks |
| Sep | 64°F | 62°F | ♻️ Active | ~14 weeks |
| Oct | 49°F | 54°F | 🐢 Slow | ~24 weeks |
| Nov | 34°F | 43°F | ❄️ Dormant | ~36 weeks |
| Dec | 24°F | 31°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 Seneca
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
For new gardeners: High pest pressure means weekly inspection. Low pest pressure means monthly. The score tells you which routine to set up before you have a problem.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 5 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 |
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 Seneca
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
The practical takeaway: The "chop and drop" approach to cover crops: cut them down right before flowering, let them lay on the surface as mulch, plant your vegetables through the mulch. Less work, healthier soil.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Jun 15 | Jul 16 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | Jun 16 | Jul 9 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | May 8 | Jul 9 | ✓ 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 | Jul 1 | Aug 13 | — | 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 | Jul 6 | May 23 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Jul 22 | May 23 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jun 28 | May 16 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Jul 31 | May 16 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jun 10 | May 23 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jun 1 | May 23 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Seneca
Quick context: A 10 mph wind doesn't feel like much, but it triples leaf transpiration vs. still air. Seneca's 0.0 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: 10 mph Summer: 8 mph
Fall: 10 mph Winter: 11 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
4.9/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (785 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting in Seneca
How much water you can collect, when to collect it, and what size system you need for your garden.
Why it matters: Rainwater scales linearly with roof area. A 2,000 sq ft roof in Seneca captures ~1,200 gallons per 1" of rain — given 19" annual rainfall, that's thousands of gallons a year if you have storage to hold it.
Annual Collection
11,214 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
7 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 2,250 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Jan, Feb, Nov, Dec
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jun, Jul, Aug, Sep
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 22.5 inches of rain per year
- A 1,000 sq ft roof can collect roughly 11,214 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jun, Jul, Aug)
- Use a first-flush diverter to keep roof debris out of your collection
🥬 Vegetables to Grow in Seneca
107 vegetables matched to Zone 6b with planting dates calibrated for Seneca.
Show all 107 vegetables with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | May 2 | Jun 13 | Jun 20 | — | Sep 12 – Oct 17 | 80–100 |
| Amaranth | Apr 11 | Jun 13 | Jun 20 | — | Sep 19 – Nov 7 | 90–120 |
| Arugula | May 2 | May 23 | Jun 6 | Jul 2 | Jul 11 – Sep 12 | 30–50 |
| Asparagus | — | — | Jun 20 | — | — | 730–1095 |
| Beets | — | May 23 | — | Jul 2 | Jul 18 – Aug 15 | 50–70 |
| Belgian Endive | May 2 | May 23 | Jun 6 | Jul 2 | Sep 26 – Nov 21 | 110–150 |
| Bitter Melon | Apr 11 | Jun 13 | Jun 20 | — | Aug 22 – Oct 3 | 60–90 |
| Black Beans | — | Jun 13 | — | — | Sep 12 – Oct 31 | 90–120 |
| Bok Choy | May 2 | May 23 | Jun 6 | Jul 2 | Jul 18 – Aug 22 | 40–60 |
| Broccoli | May 2 | May 23 | Jun 6 | Jul 2 | Aug 8 – Sep 19 | 60–90 |
| Broccoli Rabe | May 2 | May 23 | Jun 6 | Jul 2 | Jul 18 – Aug 22 | 40–60 |
| Brussels Sprouts | May 2 | May 23 | Jun 6 | Jul 2 | Sep 5 – Oct 31 | 90–130 |
| Butternut Squash | May 2 | Jun 13 | Jun 20 | — | Sep 19 – Oct 24 | 85–110 |
| Cabbage | May 2 | May 23 | Jun 6 | Jul 2 | Aug 8 – Oct 3 | 60–100 |
| Calabash | Apr 11 | Jun 13 | Jun 20 | — | Sep 12 – Nov 7 | 80–120 |
| Carrots | — | May 23 | — | Jul 2 | Jul 25 – Aug 29 | 60–80 |
| Cauliflower | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Oct 3 | 55–100 |
| Celeriac | May 2 | May 23 | Jun 6 | Jul 2 | Sep 19 – Oct 24 | 100–120 |
| Celery | May 2 | May 23 | Jun 6 | Jul 2 | Aug 29 – Oct 24 | 80–120 |
| Celtuce | May 2 | May 23 | Jun 6 | Jul 2 | Aug 8 – Sep 19 | 60–90 |
| Chard | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Sep 19 | 50–60 |
| Chickpeas | May 2 | May 23 | Jun 6 | Jul 2 | Aug 29 – Oct 10 | 80–110 |
| Chicory | May 2 | May 23 | Jun 6 | Jul 2 | Aug 8 – Sep 19 | 60–85 |
| Chinese Cabbage | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Aug 29 | 50–70 |
| Christmas Lima Beans | Apr 11 | Jun 13 | Jun 20 | — | Sep 12 – Oct 17 | 80–100 |
| Collard Greens | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Oct 3 | 55–75 |
| Corn | — | Jun 13 | — | — | Aug 15 – Oct 10 | 60–100 |
| Cowpeas | — | Jun 13 | — | — | Aug 15 – Sep 26 | 60–90 |
| Cress | May 2 | May 23 | Jun 6 | Jul 2 | Jun 20 – Jul 11 | 14–21 |
| Crookneck Squash | May 2 | Jun 13 | Jun 20 | — | Aug 8 – Sep 5 | 45–60 |
| Crosne | — | May 23 | — | Jul 2 | Oct 24 – Dec 5 | 150–200 |
| Cucumber | May 2 | Jun 13 | Jun 20 | — | Aug 15 – Oct 10 | 50–70 |
| Daikon | — | May 23 | — | Jul 2 | Jul 18 – Aug 15 | 50–70 |
| Delicata Squash | May 2 | Jun 13 | Jun 20 | — | Sep 12 – Oct 17 | 80–100 |
| Edamame | — | Jun 13 | — | — | Aug 29 – Oct 10 | 75–100 |
| Eggplant | Mar 28 | Jun 13 | Jun 20 | — | Aug 29 – Oct 31 | 65–85 |
| Endive | May 2 | May 23 | Jun 6 | Jul 2 | Jul 25 – Aug 29 | 45–65 |
| Escarole | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Aug 29 | 50–70 |
| Fava Beans | May 2 | May 23 | Jun 6 | Jul 2 | Aug 22 – Oct 3 | 75–100 |
| Fennel | Apr 11 | Jun 13 | Jun 20 | — | Aug 22 – Oct 3 | 60–90 |
| Garlic | — | — | — | Jul 30 | Oct 29 – Feb 11 | 90–240 |
| Green Beans | — | Jun 13 | — | — | Aug 8 – Oct 3 | 50–65 |
| Horseradish | — | — | Jun 20 | — | Oct 24 – Jan 2 | 120–180 |
| Hot Peppers | Mar 28 | Jun 13 | Jun 20 | — | Aug 29 – Dec 5 | 70–120 |
| Hubbard Squash | May 2 | Jun 13 | Jun 20 | — | Oct 3 – Nov 7 | 100–120 |
| Kabocha | May 2 | Jun 13 | Jun 20 | — | Sep 19 – Oct 17 | 85–100 |
| Kai Lan | May 2 | May 23 | Jun 6 | Jul 2 | Jul 25 – Aug 22 | 45–60 |
| Kale | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Sep 26 | 50–70 |
| Kidney Beans | — | Jun 13 | — | — | Sep 12 – Oct 17 | 85–110 |
| Kohlrabi | May 2 | May 23 | Jun 6 | Jul 2 | Jul 25 – Aug 29 | 45–65 |
| Komatsuna | May 2 | May 23 | Jun 6 | Jul 2 | Jul 11 – Aug 15 | 35–50 |
| Leeks | May 2 | May 23 | Jun 6 | Jul 2 | Sep 5 – Nov 21 | 90–150 |
| Lentils | May 2 | May 23 | Jun 6 | Jul 2 | Aug 29 – Oct 10 | 80–110 |
| Lettuce | May 2 | May 23 | Jun 6 | Jul 2 | Jul 11 – Sep 19 | 30–60 |
| Lima Beans | — | Jun 13 | — | — | Aug 15 – Sep 26 | 60–90 |
| Loofah | Apr 11 | Jun 13 | Jun 20 | — | Oct 3 – Dec 5 | 100–150 |
| Luffa | Apr 11 | Jun 13 | Jun 20 | — | Sep 19 – Dec 5 | 90–150 |
| Mache | May 2 | May 23 | Jun 6 | Jul 2 | Jul 18 – Aug 22 | 40–60 |
| Melon | May 2 | Jun 13 | Jun 20 | — | Aug 29 – Oct 17 | 70–100 |
| Microgreens | May 2 | May 23 | Jun 6 | Jul 2 | Jun 13 – Jul 11 | 7–21 |
| Mitsuba | May 2 | May 23 | May 30 | Jul 2 | Jul 25 – Sep 19 | 50–70 |
| Mizuna | May 2 | May 23 | Jun 6 | Jul 2 | Jul 11 – Aug 8 | 30–45 |
| Mustard Greens | May 2 | May 23 | Jun 6 | Jul 2 | Jul 11 – Sep 12 | 30–50 |
| Napa Cabbage | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Sep 5 | 55–75 |
| New Zealand Spinach | Apr 11 | Jun 13 | Jun 20 | — | Aug 15 – Sep 12 | 55–70 |
| Okra | Apr 11 | Jun 13 | Jun 20 | — | Aug 15 – Oct 10 | 50–65 |
| Onion | May 2 | May 23 | Jun 6 | Jul 2 | Sep 5 – Oct 24 | 90–120 |
| Pac Choi | May 2 | May 23 | Jun 6 | Jul 2 | Jul 18 – Aug 15 | 40–55 |
| Parsnip | — | May 23 | — | Jul 2 | Sep 5 – Oct 17 | 100–130 |
| Patty Pan Squash | May 2 | Jun 13 | Jun 20 | — | Aug 8 – Sep 5 | 45–60 |
| Peas | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Sep 26 | 55–70 |
| Peppers | Mar 28 | Jun 13 | Jun 20 | — | Aug 22 – Oct 31 | 60–90 |
| Pole Beans | Apr 11 | Jun 13 | Jun 20 | — | Aug 15 – Oct 10 | 55–70 |
| Potatoes | Apr 11 | Jun 13 | Jun 20 | — | Aug 29 – Nov 7 | 70–120 |
| Pumpkin | May 2 | Jun 13 | Jun 20 | — | Sep 19 – Nov 7 | 85–120 |
| Purslane | May 2 | May 23 | Jun 6 | Jul 2 | Jul 18 – Aug 22 | 40–60 |
| Radicchio | May 2 | May 23 | Jun 6 | Jul 2 | Aug 8 – Sep 12 | 60–80 |
| Radish | — | May 23 | — | Jul 2 | Jun 20 – Jul 11 | 22–35 |
| Rhubarb | — | — | Jun 27 | — | — | 365–730 |
| Romanesco | May 2 | May 23 | Jun 6 | Jul 2 | Aug 22 – Oct 3 | 75–100 |
| Rutabaga | — | May 23 | — | Jul 2 | Aug 15 – Sep 19 | 80–100 |
| Salsify | — | May 23 | — | Jul 2 | Sep 5 – Oct 17 | 100–130 |
| Savoy Cabbage | May 2 | May 23 | Jun 6 | Jul 2 | Aug 15 – Oct 10 | 70–110 |
| Scallions | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Aug 29 | 50–70 |
| Scarlet Runner Beans | Apr 11 | Jun 13 | Jun 20 | — | Aug 22 – Sep 26 | 60–80 |
| Shallot | May 2 | May 23 | Jun 6 | Jul 2 | Sep 5 – Oct 24 | 90–120 |
| Shiso | Apr 18 | Jun 13 | Jun 20 | — | Aug 15 – Oct 10 | 50–70 |
| Snap Peas | Apr 11 | Jun 13 | Jun 20 | — | Aug 15 – Oct 10 | 55–70 |
| Snow Peas | May 2 | May 23 | Jun 6 | Jul 2 | Aug 1 – Sep 26 | 50–65 |
| Soybeans | — | Jun 13 | — | — | Sep 5 – Oct 31 | 80–120 |
| Spaghetti Squash | May 2 | Jun 13 | Jun 20 | — | Sep 19 – Oct 17 | 85–100 |
| Spinach | May 2 | May 23 | Jun 6 | Jul 2 | Jul 11 – Sep 12 | 35–50 |
| Squash (Summer) | May 2 | Jun 13 | Jun 20 | — | Aug 8 – Oct 10 | 45–65 |
| Squash (Winter) | May 2 | Jun 13 | Jun 20 | — | Sep 12 – Nov 7 | 80–120 |
| Sunchoke | — | — | Jun 20 | — | Oct 10 – Dec 5 | 110–150 |
| Sweet Corn | — | Jun 13 | — | — | Aug 15 – Sep 26 | 60–90 |
| Sweet Potatoes | Apr 11 | Jun 13 | Jun 20 | — | Sep 19 – Nov 7 | 90–120 |
| Tatsoi | May 2 | May 23 | Jun 6 | Jul 2 | Jul 11 – Aug 15 | 35–50 |
| Tomatillo | Apr 11 | Jun 13 | Jun 20 | — | Aug 22 – Oct 31 | 60–85 |
| Tomatoes | Apr 11 | Jun 13 | Jun 20 | — | Aug 22 – Oct 31 | 60–85 |
| Turnip | — | May 23 | — | Jul 2 | Jul 4 – Aug 8 | 40–60 |
| Watercress | May 2 | May 23 | Jun 6 | Jul 2 | Jul 18 – Aug 22 | 40–60 |
| Watermelon | May 2 | Jun 13 | Jun 20 | — | Aug 29 – Oct 17 | 70–100 |
| Wax Beans | — | Jun 13 | — | — | Aug 8 – Oct 3 | 50–65 |
| Winter Melon | Apr 11 | Jun 13 | Jun 20 | — | Sep 19 – Nov 7 | 90–120 |
| Yard Long Beans | Apr 11 | Jun 13 | Jun 20 | — | Aug 15 – Sep 26 | 55–80 |
| Zucchini | May 2 | Jun 13 | Jun 20 | — | Aug 8 – Oct 3 | 45–60 |
🍓 Fruits to Grow in Seneca
27 fruits matched to Zone 6b with planting dates calibrated for Seneca.
Show all 27 fruits with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 27 | — | Sep 26 – Jan 9 | 90–180 |
| Aronia | — | — | Jun 27 | — | — | 730–1095 |
| Blackberries | — | — | Jun 27 | — | — | 365–730 |
| Blueberries | — | — | Jun 27 | — | — | 730–1095 |
| Boysenberries | — | — | Jun 27 | — | — | 365–730 |
| Cantaloupe | — | — | Jun 27 | — | Sep 5 – Oct 10 | 70–90 |
| Che Fruit | — | — | Jun 27 | — | — | 1095–1825 |
| Cranberries | — | — | Jun 27 | — | — | 730–1095 |
| Currants | — | — | Jun 27 | — | — | 730–1095 |
| Elderberries | — | — | Jun 27 | — | — | 730–1095 |
| Goji Berries | — | — | Jun 27 | — | — | 730–1095 |
| Gooseberries | — | — | Jun 27 | — | — | 730–1095 |
| Grapes | — | — | Jun 27 | — | — | 730–1095 |
| Ground Cherry | — | — | Jun 27 | — | Sep 5 – Oct 31 | 65–80 |
| Hardy Kiwi | — | — | Jun 27 | — | — | 1095–1825 |
| Haskaps | — | — | Jun 27 | — | — | 730–1095 |
| Honeydew | — | — | Jun 27 | — | Sep 19 – Oct 31 | 80–110 |
| Jostaberry | — | — | Jun 27 | — | — | 730–1095 |
| Lingonberries | — | — | Jun 27 | — | — | 730–1095 |
| Medlar | — | — | Jun 27 | — | — | 1095–1825 |
| Mulberries | — | — | Jun 27 | — | — | 730–1825 |
| Pawpaw | — | — | Jun 27 | — | — | 1095–2555 |
| Persimmon | — | — | Jun 27 | — | — | 1095–2555 |
| Quince | — | — | Jun 27 | — | — | 1095–1825 |
| Raspberries | — | — | Jun 27 | — | — | 365–730 |
| Serviceberries | — | — | Jun 27 | — | — | 730–1095 |
| Strawberries | — | — | Jun 27 | — | Sep 26 – Jan 9 | 90–365 |
🌿 Herbs to Grow in Seneca
35 herbs matched to Zone 6b with planting dates calibrated for Seneca.
Show all 35 herbs with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | May 2 | May 23 | May 30 | Jul 2 | — | 365–730 |
| Anise | May 2 | May 23 | May 30 | Jul 2 | Aug 29 – Nov 14 | 90–120 |
| Basil | Apr 18 | Jun 13 | Jun 20 | — | Aug 15 – Oct 17 | 50–75 |
| Bee Balm | — | — | Jun 13 | — | Sep 12 – Nov 28 | 90–120 |
| Borage | May 2 | May 23 | May 30 | Jul 2 | Jul 25 – Sep 12 | 50–60 |
| Caraway | May 2 | May 23 | May 30 | Jul 2 | — | 365–450 |
| Catnip | — | — | Jun 13 | — | Aug 15 – Oct 17 | 60–80 |
| Chamomile | May 2 | May 23 | May 30 | Jul 2 | Aug 1 – Oct 10 | 60–90 |
| Chervil | May 2 | May 23 | May 30 | Jul 2 | Jul 11 – Sep 12 | 40–60 |
| Chives | — | — | Jun 13 | — | Aug 15 – Oct 24 | 60–90 |
| Cilantro | May 2 | May 23 | May 30 | Jul 2 | Jul 11 – Sep 12 | 40–60 |
| Comfrey | — | — | Jun 13 | — | Aug 15 – Oct 24 | 60–90 |
| Cumin | May 2 | May 23 | May 30 | Jul 2 | Sep 12 – Nov 14 | 100–120 |
| Dill | May 2 | May 23 | May 30 | Jul 2 | Jul 11 – Sep 12 | 40–60 |
| Epazote | Apr 18 | Jun 13 | Jun 20 | — | Aug 8 – Oct 3 | 45–60 |
| Fennel (herb) | May 2 | May 23 | May 30 | Jul 2 | Aug 1 – Oct 10 | 60–90 |
| Feverfew | — | — | Jun 13 | — | Sep 12 – Nov 28 | 90–120 |
| Garlic Chives | — | — | Jun 13 | — | Aug 15 – Oct 24 | 60–90 |
| Horehound | — | — | Jun 13 | — | Aug 29 – Oct 24 | 75–90 |
| Hyssop | — | — | Jun 13 | — | Aug 22 – Oct 24 | 70–90 |
| Lemon Balm | — | — | Jun 13 | — | Aug 15 – Oct 3 | 60–70 |
| Lemon Thyme | — | — | Jun 13 | — | Aug 22 – Oct 24 | 70–90 |
| Lovage | — | — | Jun 13 | — | Aug 22 – Oct 24 | 70–90 |
| Marjoram | — | — | Jun 13 | — | Aug 15 – Oct 24 | 60–90 |
| Mint | — | — | Jun 13 | — | Aug 15 – Oct 24 | 60–90 |
| Oregano | — | — | Jun 13 | — | Aug 15 – Oct 24 | 60–90 |
| Parsley | May 2 | May 23 | May 30 | Jul 2 | Aug 1 – Oct 3 | 60–80 |
| Rue | — | — | Jun 13 | — | Aug 22 – Oct 24 | 70–90 |
| Sage | — | — | Jun 13 | — | Aug 29 – Oct 24 | 75–90 |
| Savory | — | — | Jun 13 | — | Aug 8 – Oct 3 | 50–70 |
| Sorrel | May 2 | May 23 | May 30 | Jul 2 | Jul 11 – Sep 12 | 40–60 |
| Tarragon | — | — | Jun 13 | — | Aug 15 – Oct 24 | 60–90 |
| Thai Basil | Apr 18 | Jun 13 | Jun 20 | — | Aug 15 – Oct 17 | 50–75 |
| Thyme | — | — | Jun 13 | — | Aug 22 – Oct 24 | 70–90 |
| Valerian | — | — | Jun 13 | — | Oct 17 – Dec 26 | 120–180 |
🌸 Flowers to Grow in Seneca
53 flowers matched to Zone 6b with planting dates calibrated for Seneca.
Show all 53 flowers with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Apr 18 | Jun 6 | Jun 6 | — | Aug 1 – Nov 14 | 60–75 |
| Alliums | — | — | — | Jul 30 | Aug 27 – Sep 24 | 28–42 |
| Anemones | May 9 | — | Jun 6 | — | Jul 4 – Aug 1 | 90–120 |
| Astilbe | Apr 4 | — | Jun 13 | — | Aug 22 – Oct 31 | 70–100 |
| Bachelor's Button | Apr 25 | May 9 | Jun 6 | Jul 30 | Aug 8 – Oct 31 | 60–90 |
| Begonias | Mar 28 | — | Jun 13 | — | Aug 22 – Nov 28 | 70–90 |
| Black-eyed Susan | Apr 4 | Jun 6 | Jun 13 | — | Aug 29 – Dec 19 | 60–80 |
| Bleeding Hearts | Apr 4 | — | Jun 13 | — | Aug 8 – Sep 12 | 60–90 |
| Calendula | Apr 25 | May 9 | Jun 6 | — | Jul 25 – Oct 31 | 50–70 |
| California Poppy | — | May 9 | — | — | Jul 18 – Sep 12 | 60–90 |
| Celosia | May 2 | Jun 13 | Jun 13 | — | Aug 15 – Dec 5 | 60–90 |
| Columbine | Apr 4 | Jun 13 | Jun 13 | — | Aug 8 – Sep 12 | 70–100 |
| Coreopsis | Apr 4 | Jun 6 | Jun 13 | — | Aug 22 – Dec 19 | 60–80 |
| Cosmos | May 9 | Jun 6 | Jun 6 | — | Aug 15 – Nov 28 | 60–90 |
| Crocus | — | — | — | Jul 30 | Jun 18 – Jul 9 | 10–20 |
| Daffodils | — | — | — | Jul 30 | Jun 25 – Jul 16 | 20–40 |
| Dahlias | May 9 | Jun 13 | Jun 13 | — | Aug 29 – Dec 19 | 70–120 |
| Daylily | Apr 4 | — | Jun 13 | — | Aug 29 – Dec 19 | 60–90 |
| Dianthus | Apr 11 | May 9 | May 16 | — | Jul 4 – Oct 3 | 60–80 |
| Echinacea (Purple Coneflower) | Apr 4 | Jun 13 | Jun 13 | — | Aug 29 – Dec 19 | 70–90 |
| Foxglove | Apr 4 | Jun 13 | Jun 13 | — | Aug 8 – Sep 12 | 80–120 |
| Gaillardia (Blanket Flower) | Apr 18 | Jun 13 | Jun 13 | — | Aug 22 – Dec 26 | 70–100 |
| Geraniums | Mar 28 | — | Jun 13 | — | Aug 22 – Nov 28 | 70–100 |
| Gladiolus | — | Jun 6 | Jun 6 | — | Aug 22 – Dec 12 | 70–100 |
| Hostas | Mar 28 | — | Jun 13 | — | Aug 29 – Dec 19 | 60–90 |
| Hyacinths | — | — | — | Jul 30 | Jul 16 – Aug 6 | 14–28 |
| Hydrangeas | Mar 28 | — | Jun 13 | — | Aug 22 – Dec 5 | 90–150 |
| Impatiens | Apr 11 | — | Jun 13 | — | Aug 22 – Dec 5 | 60–75 |
| Irises | — | Division | Jun 13 | — | Aug 8 – Sep 5 | 60–100 |
| Larkspur | — | May 9 | — | — | Jul 18 – Sep 12 | 60–90 |
| Lavender | Mar 28 | — | Jun 20 | — | Aug 29 – Oct 24 | 90–120 |
| Lilies | — | Division | Jun 13 | — | Aug 22 – Nov 28 | 70–120 |
| Lobelia | Apr 4 | — | May 23 | — | Jul 18 – Oct 10 | 70–80 |
| Lupine | Apr 4 | Jun 13 | Jun 13 | — | Aug 8 – Sep 12 | 75–100 |
| Marigolds | Apr 25 | Jun 6 | Jun 6 | — | Aug 1 – Nov 7 | 50–70 |
| Nasturtium | May 9 | Jun 6 | Jun 6 | — | Aug 1 – Nov 28 | 55–65 |
| Pansy | Mar 28 | — | Jun 6 | Jul 16 | Aug 1 – Oct 10 | 70–90 |
| Peonies | — | Division | Jun 13 | — | Aug 15 – Sep 19 | 90–120 |
| Petunia | Apr 11 | — | Jun 13 | — | Aug 22 – Dec 5 | 70–90 |
| Phlox | Apr 4 | Jun 13 | Jun 13 | — | Aug 22 – Nov 14 | 80–110 |
| Portulaca | May 2 | Jun 13 | Jun 13 | — | Aug 1 – Nov 21 | 50–70 |
| Ranunculus | Apr 25 | — | Jun 6 | — | Jul 11 – Aug 8 | 90–120 |
| Roses | Mar 28 | — | Jun 13 | — | Aug 22 – Dec 19 | 90–180 |
| Salvia | Apr 4 | — | Jun 6 | — | Aug 15 – Nov 28 | 70–90 |
| Sedum (Stonecrop) | Apr 4 | — | Jun 13 | — | Oct 3 – Dec 26 | 60–90 |
| Snapdragon | Mar 28 | May 16 | Jun 6 | — | Aug 15 – Oct 31 | 70–100 |
| Sunflower | May 16 | Jun 6 | Jun 6 | — | Aug 29 – Nov 28 | 70–100 |
| Sweet Alyssum | Apr 25 | May 16 | Jun 6 | — | Jul 18 – Oct 3 | 45–60 |
| Sweet Pea | Apr 25 | May 2 | Jun 6 | — | Aug 22 – Oct 31 | 65–85 |
| Tulips | — | — | — | Aug 6 | Jul 16 – Aug 13 | 15–30 |
| Vinca (Annual) | Mar 28 | — | Jun 13 | — | Aug 22 – Dec 5 | 70–90 |
| Yarrow | Apr 4 | Jun 6 | Jun 13 | — | Aug 22 – Dec 19 | 60–90 |
| Zinnia | May 9 | Jun 6 | Jun 6 | — | Aug 15 – Nov 21 | 60–70 |
Monthly Planting Guide for Seneca
ZIP Codes in Seneca
Click any ZIP to see its specific frost, soil, and climate measurements (some ZIPs differ noticeably from the town aggregate):
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Grant County.
Your Grant County Garden Planner — Free
A 22-page printable planner built for Grant County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.
The Gardener's Encyclopedia to Companion Planting
The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Seed Saving & Storage Guide
Most saved seeds go bad before next season. This shows exactly when to pick, how to dry, and where to store seeds from 200 plants so yours don't.
- 200 plants, step-by-step: life cycle, pollination type, isolation
- Exact temperature + humidity ranges that keep seeds viable
- Bonus: searchable Google Sheets tracker + custom GPT assistant
Composting Guide for Homesteaders
Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.
- 14 sections on composting methods, soil science, and troubleshooting
- The 7-step hot-compost system from start to finish
- Bonus tools: troubleshooting chart, safety guide, monitoring log