Delaware County, NY — Planting Guide
Delaware County is in USDA Zone 5a. The average last spring frost is May 11 and the first fall frost is October 8, giving you a growing season of approximately 150 days.
At an elevation of 1,053 ft, Delaware County receives approximately 44.2 in of rainfall annually. Summer highs average 84°F with winter lows around 13°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 28 days year to year — ranging from April 27 in warm years to May 25 in cold years. The growing season is trending longer by about 3.13 days per decade. Delaware County scores 59/100 (Moderate) on the Microclimate Index.
🌡️ Zone
5a (-20°F to -15°F min)
❄️ Last Frost
May 11
🍂 First Frost
October 8
📅 Growing Season
150 days
⛰️ Elevation
1,053 ft
🌧️ Annual Rainfall
44.2 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 | 3 in | 11 days | — | None |
| Feb | 3.5 in | 10 days | — | None |
| Mar | 3.8 in | 11 days | — | None |
| Apr | 4.4 in | 9 days | — | Low |
| May | 3.5 in | 11 days | 0.8 in | Moderate |
| Jun | 4.1 in | 9 days | 0.2 in | Low |
| Jul | 4 in | 9 days | 0.3 in | Low |
| Aug | 3.8 in | 8 days | 0.5 in | Low |
| Sep | 3.6 in | 9 days | 0.7 in | Moderate |
| Oct | 3.5 in | 8 days | 0.8 in | Moderate |
| Nov | 3.5 in | 9 days | — | None |
| Dec | 3.5 in | 9 days | — | None |
Annual total: 44.2 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.
Delaware County Soil Profile
Soil Type
Silt Loam
Soil pH
4.9-6.5
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 25 | Oct 23 | 151 days |
| Cautious | May 17 | Oct 16 | 152 days |
| Average year | May 11 | Oct 8 | 150 days |
| Optimistic | May 4 | Oct 4 | 153 days |
| Aggressive (risky) | Apr 27 | Sep 23 | 149 days |
Not very — frost dates can vary by ±28 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 3.1 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Delaware County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Delaware 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 Delaware County's climate and soil.
County Extension Office
Delaware 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 Delaware County
Finding local nurseries & garden centers in Delaware County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Delaware 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 Delaware County NY" or "garden center Delaware 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 Delaware County NY" or check your extension office and local parks department. Facebook groups like "Delaware 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
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
15.1 hours
Summer solstice daylight
Shortest Day
8.9 hours
Winter solstice daylight
Peak Sun Hours
8.9 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 | 9.2 hr | 3.4 hr | Short day |
| February | 10.4 hr | 4.4 hr | Short day |
| March | 11.7 hr | 5.5 hr | Short day |
| April | 13.2 hr | 6.5 hr | Neutral |
| May | 14.4 hr | 7.5 hr | Long day |
| June | 15.1 hr | 8.4 hr | Long day |
| July | 14.8 hr | 8.9 hr | Long day |
| August | 13.7 hr | 7.2 hr | Neutral |
| September | 12.3 hr | 6.1 hr | Neutral |
| October | 10.8 hr | 5.1 hr | Short day |
| November | 9.6 hr | 3.6 hr | Short day |
| December | 8.9 hr | 3 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 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 | 22°F | 31°F | ❄️ Dormant | ~36 weeks |
| Feb | 25°F | 30°F | ❄️ Dormant | ~36 weeks |
| Mar | 32°F | 35°F | ❄️ Dormant | ~36 weeks |
| Apr | 47°F | 43°F | 🐢 Slow | ~24 weeks |
| May | 56°F | 54°F | ♻️ Active | ~14 weeks |
| Jun | 69°F | 63°F | 🔥 Peak | ~8 weeks |
| Jul | 75°F | 70°F | 🔥 Peak | ~8 weeks |
| Aug | 77°F | 72°F | 🔥 Peak | ~8 weeks |
| Sep | 70°F | 69°F | 🔥 Peak | ~8 weeks |
| Oct | 57°F | 59°F | ♻️ Active | ~14 weeks |
| Nov | 43°F | 48°F | 🐢 Slow | ~24 weeks |
| Dec | 30°F | 37°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 Delaware 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
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 |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash bugs | Low | Jun, Jul, Aug |
| Tomato hornworms | Moderate | Jul, Aug |
| Cabbage loopers | Moderate | May, Jun, 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 Delaware 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 | May 15 | Jul 30 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | May 17 | Jul 30 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Apr 14 | Aug 6 | ✓ 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 | Jun 2 | Sep 17 | — | 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 5 | Apr 27 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Aug 25 | Apr 20 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 23 | Apr 27 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 9 | Apr 27 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 1 | Apr 27 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 13 | Apr 27 | — | 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: 12 mph Summer: 9 mph
Fall: 11 mph Winter: 15 mph
Prevailing wind: W. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
7/10
Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.
Frost Pocket Risk
Moderate
Some terrain variation (580 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
22,029 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 500 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Mar, Apr, Jun, Jul
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Nov, 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 44.2 inches of rain per year
- A 1,000 sq ft roof can collect roughly 22,029 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jan, Nov, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Delaware County
Soil Type
Silt Loam
Soil pH 4.9–6.5 · Somewhat Poorly Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
Watering Needs
Drought stress: 1.5/10
Delaware County has very low drought pressure. Natural rainfall usually meets garden needs — water only during extended dry spells.
Season Tips
150-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.
Free Garden Planner
Plan your entire garden season — organize planting dates, track what you're growing, and know exactly when to start seeds, transplant, and harvest.
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 Delaware County
106 vegetables that grow well in Zone 5a with planting dates for Delaware County.
Show all 106 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Apr 6 | May 18 | May 25 | Aug 17 – Sep 21 | 80–100 |
| Amaranth | Mar 16 | May 18 | May 25 | Aug 24 – Oct 12 | 90–120 |
| Arugula | Apr 6 | Apr 27 | May 11 | Jun 15 – Aug 17 | 30–50 |
| Asparagus | — | — | May 25 | — | 730–1095 |
| Beets | — | Apr 27 | — | Jun 22 – Jul 20 | 50–70 |
| Belgian Endive | Apr 6 | Apr 27 | May 11 | Aug 31 – Oct 26 | 110–150 |
| Bitter Melon | Mar 16 | May 18 | May 25 | Jul 27 – Sep 7 | 60–90 |
| Black Beans | — | May 18 | — | Aug 17 – Oct 5 | 90–120 |
| Bok Choy | Apr 6 | Apr 27 | May 11 | Jun 22 – Jul 27 | 40–60 |
| Broccoli | Apr 6 | Apr 27 | May 11 | Jul 13 – Aug 24 | 60–90 |
| Broccoli Rabe | Apr 6 | Apr 27 | May 11 | Jun 22 – Jul 27 | 40–60 |
| Brussels Sprouts | Apr 6 | Apr 27 | May 11 | Aug 10 – Oct 5 | 90–130 |
| Butternut Squash | Apr 6 | May 18 | May 25 | Aug 24 – Sep 28 | 85–110 |
| Cabbage | Apr 6 | Apr 27 | May 11 | Jul 13 – Sep 7 | 60–100 |
| Calabash | Mar 16 | May 18 | May 25 | Aug 17 – Oct 12 | 80–120 |
| Carrots | — | Apr 27 | — | Jun 29 – Aug 3 | 60–80 |
| Cauliflower | Apr 6 | Apr 27 | May 11 | Jul 6 – Sep 7 | 55–100 |
| Celeriac | Apr 6 | Apr 27 | May 11 | Aug 24 – Sep 28 | 100–120 |
| Celery | Apr 6 | Apr 27 | May 11 | Aug 3 – Sep 28 | 80–120 |
| Celtuce | Apr 6 | Apr 27 | May 11 | Jul 13 – Aug 24 | 60–90 |
| Chard | Apr 6 | Apr 27 | May 11 | Jul 6 – Aug 24 | 50–60 |
| Chickpeas | Apr 6 | Apr 27 | May 11 | Aug 3 – Sep 14 | 80–110 |
| Chicory | Apr 6 | Apr 27 | May 11 | Jul 13 – Aug 24 | 60–85 |
| Chinese Cabbage | Apr 6 | Apr 27 | May 11 | Jul 6 – Aug 3 | 50–70 |
| Christmas Lima Beans | Mar 16 | May 18 | May 25 | Aug 17 – Sep 21 | 80–100 |
| Collard Greens | Apr 6 | Apr 27 | May 11 | Jul 6 – Sep 7 | 55–75 |
| Corn | — | May 18 | — | Jul 20 – Sep 14 | 60–100 |
| Cowpeas | — | May 18 | — | Jul 20 – Aug 31 | 60–90 |
| Cress | Apr 6 | Apr 27 | May 11 | May 25 – Jun 15 | 14–21 |
| Crookneck Squash | Apr 6 | May 18 | May 25 | Jul 13 – Aug 10 | 45–60 |
| Crosne | — | Apr 27 | — | Sep 28 – Oct 12 | 150–200 |
| Cucumber | Apr 6 | May 18 | May 25 | Jul 20 – Sep 14 | 50–70 |
| Daikon | — | Apr 27 | — | Jun 22 – Jul 20 | 50–70 |
| Delicata Squash | Apr 6 | May 18 | May 25 | Aug 17 – Sep 21 | 80–100 |
| Edamame | — | May 18 | — | Aug 3 – Sep 14 | 75–100 |
| Eggplant | Mar 2 | May 18 | May 25 | Aug 3 – Oct 5 | 65–85 |
| Endive | Apr 6 | Apr 27 | May 11 | Jun 29 – Aug 3 | 45–65 |
| Escarole | Apr 6 | Apr 27 | May 11 | Jul 6 – Aug 3 | 50–70 |
| Fava Beans | Apr 6 | Apr 27 | May 11 | Jul 27 – Sep 7 | 75–100 |
| Fennel | Mar 16 | May 18 | May 25 | Jul 27 – Sep 7 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | May 18 | — | Jul 13 – Sep 7 | 50–65 |
| Horseradish | — | — | May 25 | Sep 28 – Nov 9 | 120–180 |
| Hot Peppers | Mar 2 | May 18 | May 25 | Aug 3 – Nov 9 | 70–120 |
| Hubbard Squash | Apr 6 | May 18 | May 25 | Sep 7 – Oct 12 | 100–120 |
| Kabocha | Apr 6 | May 18 | May 25 | Aug 24 – Sep 21 | 85–100 |
| Kai Lan | Apr 6 | Apr 27 | May 11 | Jun 29 – Jul 27 | 45–60 |
| Kale | Apr 6 | Apr 27 | May 11 | Jul 6 – Aug 31 | 50–70 |
| Kidney Beans | — | May 18 | — | Aug 17 – Sep 21 | 85–110 |
| Kohlrabi | Apr 6 | Apr 27 | May 11 | Jun 29 – Aug 3 | 45–65 |
| Komatsuna | Apr 6 | Apr 27 | May 11 | Jun 15 – Jul 20 | 35–50 |
| Leeks | Apr 6 | Apr 27 | May 11 | Aug 10 – Oct 26 | 90–150 |
| Lentils | Apr 6 | Apr 27 | May 11 | Aug 3 – Sep 14 | 80–110 |
| Lettuce | Apr 6 | Apr 27 | May 11 | Jun 15 – Aug 24 | 30–60 |
| Lima Beans | — | May 18 | — | Jul 20 – Aug 31 | 60–90 |
| Mache | Apr 6 | Apr 27 | May 11 | Jun 22 – Jul 27 | 40–60 |
| Melon | Apr 6 | May 18 | May 25 | Aug 3 – Sep 21 | 70–100 |
| Microgreens | Apr 6 | Apr 27 | May 11 | May 18 – Jun 15 | 7–21 |
| Mitsuba | Apr 6 | Apr 27 | May 4 | Jun 29 – Aug 24 | 50–70 |
| Mizuna | Apr 6 | Apr 27 | May 11 | Jun 15 – Jul 13 | 30–45 |
| Mustard Greens | Apr 6 | Apr 27 | May 11 | Jun 15 – Aug 17 | 30–50 |
| Napa Cabbage | Apr 6 | Apr 27 | May 11 | Jul 6 – Aug 10 | 55–75 |
| New Zealand Spinach | Mar 16 | May 18 | May 25 | Jul 20 – Aug 17 | 55–70 |
| Okra | Mar 16 | May 18 | May 25 | Jul 20 – Sep 14 | 50–65 |
| Onion | Apr 6 | Apr 27 | May 11 | Aug 10 – Sep 28 | 90–120 |
| Pac Choi | Apr 6 | Apr 27 | May 11 | Jun 22 – Jul 20 | 40–55 |
| Parsnip | — | Apr 27 | — | Aug 10 – Sep 21 | 100–130 |
| Patty Pan Squash | Apr 6 | May 18 | May 25 | Jul 13 – Aug 10 | 45–60 |
| Peas | Apr 6 | Apr 27 | May 11 | Jul 6 – Aug 31 | 55–70 |
| Peppers | Mar 2 | May 18 | May 25 | Jul 27 – Oct 5 | 60–90 |
| Pole Beans | Mar 16 | May 18 | May 25 | Jul 20 – Sep 14 | 55–70 |
| Potatoes | Mar 16 | May 18 | May 25 | Aug 3 – Oct 12 | 70–120 |
| Pumpkin | Apr 6 | May 18 | May 25 | Aug 24 – Oct 12 | 85–120 |
| Purslane | Apr 6 | Apr 27 | May 11 | Jun 22 – Jul 27 | 40–60 |
| Radicchio | Apr 6 | Apr 27 | May 11 | Jul 13 – Aug 17 | 60–80 |
| Radish | — | Apr 27 | — | May 25 – Jun 15 | 22–35 |
| Rhubarb | — | — | Jun 1 | — | 365–730 |
| Romanesco | Apr 6 | Apr 27 | May 11 | Jul 27 – Sep 7 | 75–100 |
| Rutabaga | — | Apr 27 | — | Jul 20 – Aug 24 | 80–100 |
| Salsify | — | Apr 27 | — | Aug 10 – Sep 21 | 100–130 |
| Savoy Cabbage | Apr 6 | Apr 27 | May 11 | Jul 20 – Sep 14 | 70–110 |
| Scallions | Apr 6 | Apr 27 | May 11 | Jul 6 – Aug 3 | 50–70 |
| Scarlet Runner Beans | Mar 16 | May 18 | May 25 | Jul 27 – Aug 31 | 60–80 |
| Shallot | Apr 6 | Apr 27 | May 11 | Aug 10 – Sep 28 | 90–120 |
| Shiso | Mar 23 | May 18 | May 25 | Jul 20 – Sep 14 | 50–70 |
| Snap Peas | Mar 16 | May 18 | May 25 | Jul 20 – Sep 14 | 55–70 |
| Snow Peas | Apr 6 | Apr 27 | May 11 | Jul 6 – Aug 31 | 50–65 |
| Soybeans | — | May 18 | — | Aug 10 – Oct 5 | 80–120 |
| Spaghetti Squash | Apr 6 | May 18 | May 25 | Aug 24 – Sep 21 | 85–100 |
| Spinach | Apr 6 | Apr 27 | May 11 | Jun 15 – Aug 17 | 35–50 |
| Squash (Summer) | Apr 6 | May 18 | May 25 | Jul 13 – Sep 14 | 45–65 |
| Squash (Winter) | Apr 6 | May 18 | May 25 | Aug 17 – Oct 12 | 80–120 |
| Sunchoke | — | — | May 25 | Sep 14 – Nov 9 | 110–150 |
| Sunflower | Mar 16 | May 18 | May 25 | Aug 3 – Sep 21 | 70–100 |
| Sweet Corn | — | May 18 | — | Jul 20 – Aug 31 | 60–90 |
| Sweet Potatoes | Mar 16 | May 18 | May 25 | Aug 24 – Oct 12 | 90–120 |
| Tatsoi | Apr 6 | Apr 27 | May 11 | Jun 15 – Jul 20 | 35–50 |
| Tomatillo | Mar 16 | May 18 | May 25 | Jul 27 – Oct 5 | 60–85 |
| Tomatoes | Mar 16 | May 18 | May 25 | Jul 27 – Oct 5 | 60–85 |
| Turnip | — | Apr 27 | — | Jun 8 – Jul 13 | 40–60 |
| Watercress | Apr 6 | Apr 27 | May 11 | Jun 22 – Jul 27 | 40–60 |
| Watermelon | Apr 6 | May 18 | May 25 | Aug 3 – Sep 21 | 70–100 |
| Wax Beans | — | May 18 | — | Jul 13 – Sep 7 | 50–65 |
| Winter Melon | Mar 16 | May 18 | May 25 | Aug 24 – Oct 12 | 90–120 |
| Yard Long Beans | Mar 16 | May 18 | May 25 | Jul 20 – Aug 31 | 55–80 |
| Zucchini | Apr 6 | May 18 | May 25 | Jul 13 – Sep 7 | 45–60 |
🍓 Fruits to Grow in Delaware County
27 fruits that grow well in Zone 5a with planting dates for Delaware County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 1 | Aug 31 – Nov 16 | 90–180 |
| Aronia | — | — | Jun 1 | — | 730–1095 |
| Blackberries | — | — | Jun 1 | — | 365–730 |
| Blueberries | — | — | Jun 1 | — | 730–1095 |
| Boysenberries | — | — | Jun 1 | — | 365–730 |
| Cantaloupe | — | — | Jun 1 | Aug 10 – Sep 14 | 70–90 |
| Che Fruit | — | — | Jun 1 | — | 1095–1825 |
| Cranberries | — | — | Jun 1 | — | 730–1095 |
| Currants | — | — | Jun 1 | — | 730–1095 |
| Elderberries | — | — | Jun 1 | — | 730–1095 |
| Goji Berries | — | — | Jun 1 | — | 730–1095 |
| Gooseberries | — | — | Jun 1 | — | 730–1095 |
| Grapes | — | — | Jun 1 | — | 730–1095 |
| Ground Cherry | — | — | Jun 1 | Aug 10 – Oct 5 | 65–80 |
| Hardy Kiwi | — | — | Jun 1 | — | 1095–1825 |
| Haskaps | — | — | Jun 1 | — | 730–1095 |
| Honeydew | — | — | Jun 1 | Aug 24 – Oct 5 | 80–110 |
| Jostaberry | — | — | Jun 1 | — | 730–1095 |
| Lingonberries | — | — | Jun 1 | — | 730–1095 |
| Medlar | — | — | Jun 1 | — | 1095–1825 |
| Mulberries | — | — | Jun 1 | — | 730–1825 |
| Pawpaw | — | — | Jun 1 | — | 1095–2555 |
| Persimmon | — | — | Jun 1 | — | 1095–2555 |
| Quince | — | — | Jun 1 | — | 1095–1825 |
| Raspberries | — | — | Jun 1 | — | 365–730 |
| Serviceberries | — | — | Jun 1 | — | 730–1095 |
| Strawberries | — | — | Jun 1 | Aug 31 – Nov 16 | 90–365 |
🌿 Herbs to Grow in Delaware County
37 herbs that grow well in Zone 5a with planting dates for Delaware County.
Show all 37 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Apr 6 | Apr 27 | May 4 | — | 365–730 |
| Anise | Apr 6 | Apr 27 | May 4 | Aug 3 – Oct 19 | 90–120 |
| Basil | Mar 23 | May 18 | May 25 | Jul 20 – Sep 21 | 50–75 |
| Bee Balm | — | — | May 18 | Aug 17 – Nov 2 | 90–120 |
| Borage | Apr 6 | Apr 27 | May 4 | Jun 29 – Aug 17 | 50–60 |
| Caraway | Apr 6 | Apr 27 | May 4 | — | 365–450 |
| Catnip | — | — | May 18 | Jul 20 – Sep 21 | 60–80 |
| Chamomile | Apr 6 | Apr 27 | May 4 | Jul 6 – Sep 14 | 60–90 |
| Chervil | Apr 6 | Apr 27 | May 4 | Jun 15 – Aug 17 | 40–60 |
| Chives | — | — | May 18 | Jul 20 – Sep 28 | 60–90 |
| Cilantro | Apr 6 | Apr 27 | May 4 | Jun 15 – Aug 17 | 40–60 |
| Comfrey | — | — | May 18 | Jul 20 – Sep 28 | 60–90 |
| Cumin | Apr 6 | Apr 27 | May 4 | Aug 17 – Oct 19 | 100–120 |
| Dill | Apr 6 | Apr 27 | May 4 | Jun 15 – Aug 17 | 40–60 |
| Echinacea | — | — | May 18 | Sep 21 – Nov 2 | 120–180 |
| Epazote | Mar 23 | May 18 | May 25 | Jul 13 – Sep 7 | 45–60 |
| Fennel (herb) | Apr 6 | Apr 27 | May 4 | Jul 6 – Sep 14 | 60–90 |
| Feverfew | — | — | May 18 | Aug 17 – Nov 2 | 90–120 |
| 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 |
| Lavender | — | — | May 18 | Aug 17 – Nov 2 | 90–200 |
| Lemon Balm | — | — | May 18 | Jul 20 – Sep 7 | 60–70 |
| Lemon Thyme | — | — | May 18 | Jul 27 – Sep 28 | 70–90 |
| 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 | Apr 6 | Apr 27 | May 4 | 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 | Apr 6 | Apr 27 | May 4 | Jun 15 – Aug 17 | 40–60 |
| Tarragon | — | — | May 18 | Jul 20 – Sep 28 | 60–90 |
| Thai Basil | Mar 23 | May 18 | May 25 | Jul 20 – Sep 21 | 50–75 |
| Thyme | — | — | May 18 | Jul 27 – Sep 28 | 70–90 |
| Valerian | — | — | May 18 | Sep 21 – Nov 2 | 120–180 |
| Yarrow | — | — | May 18 | Aug 17 – Nov 2 | 90–120 |
Monthly Planting Guide for Delaware County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Delaware County.
Frequently Asked Questions
What planting zone is Delaware County, NY?
Delaware County is in USDA Hardiness Zone 5a. 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 Delaware County, NY?
Based on 31 years of NOAA weather station data, the median last spring frost in Delaware County falls around May 11. In 8 out of 10 years, last frost lands between April 27 and May 25 — a 28-day window of variability. Use May 25 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Delaware County, NY?
The median first fall frost in Delaware County arrives around October 8. In cold years it can arrive as early as September 23; in mild years as late as October 23. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Delaware County?
Delaware County has a frost-free growing season of approximately 150 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 longer by about 3.13 days per decade.
What is the soil like in Delaware County for gardening?
Delaware County has predominantly Silt Loam soil with a pH range of 4.9–6.5 and Somewhat Poorly Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Delaware County?
Delaware County has commercial agriculture that includes Hay, Dairy, Corn, Sweet Corn. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Delaware County a good location for home gardening?
Delaware 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.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Delaware County gardeners in Zone 5a organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.
