Blog

🔍

Delphos, OH — Planting Guide for June

Download My Garden Planner for Delphos

Free PDF, personalized for your town's frost dates & climate. Drop your email — we'll send the link.

Allen County, Ohio Zone 6a June

Your June game plan for Allen County, Ohio

June is a pivotal month for Allen County, Ohio gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 23
Avg. first frost October 22
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 14.9 hrs
  1. Fire up the seed-starting tray: basil, pole beans, and thai basil

    Starting these indoors now means sturdy transplants ready the moment your soil warms up.

  2. Collect carrots, green beans, and kale at their peak

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

July prep starts now
  • Starting indoors: peppers, begonias, and eggplant
  • First harvests: basil, carrots, and cucumber

Instant PDF download. No spam, unsubscribe any time.

Delphos has a classic four-season growing climate (Zone 6a). The last spring frost typically lands around April 23 and the first fall frost arrives around October 22 — a 182-day frost-free season that's long enough for tomatoes, peppers, melons, and a full succession of cool-weather crops on either side. The trick is timing: start warm-season seedlings indoors 6–8 weeks before last frost, harden them off, and plant out the week after your local frost date is statistically safe.

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.

Drought pressure is moderate (12.1 weeks/year on average). Mulching and drip irrigation pay for themselves quickly.

🌡️ USDA Zone

6a (-10°F to -5°F min)

❄️ Avg. Last Frost

April 23

🍂 Avg. First Frost

October 22

📅 Growing Season

182 days

🌧️ Climate

Humid 41.9" annual

💨 Wind

Moderate 9.1 mph avg

🥶 Frost Tier

Regular 0% frost-free years

🏜️ Drought

12.1 wk/yr trend stable

📍 ZIP Codes

1 ZIP

Delphos, OH Moderate season
182 days
❄
Last Spring Frost April 23
➔ 182 growing days ➔
❄
First Fall Frost October 22

Monthly Watering Calendar for Delphos

When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.

The practical takeaway: Mulch reduces watering needs 30-50% by cutting evaporation. Delphos's 42" annual rainfall might be enough for vegetables in some months and not in others — a 2-3" mulch layer evens the swing.

1"/wk 0" 1.4" 2.8" 4.2" 5.6" Jan 1.4" Feb 1.7" Mar 2.8" +0.6" Apr 3.7" May 4.3" Jun 5.6" Jul 4.6" Aug 4.3" +0.6" Sep 3.7" +1.3" Oct 3" Nov 3" Dec 2.5"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 1.4 in 9 days — None
Feb 1.7 in 6 days — None
Mar 2.8 in 8 days — None
Apr 3.7 in 10 days 0.6 in Moderate
May 4.3 in 11 days — Low
Jun 5.6 in 9 days — Low
Jul 4.6 in 10 days — Low
Aug 4.3 in 8 days — Low
Sep 3.7 in 7 days 0.6 in Moderate
Oct 3 in 6 days 1.3 in Moderate
Nov 3 in 7 days — None
Dec 2.5 in 7 days — None

Annual total: 40.6 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.

Delphos Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7.3

Drainage

Well Drained

Frost Risk Probability

Based on 31 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Apr 23 → Oct 22 182 frost-free days Protect crops frost returns Apr May Jun Jul Aug Sep Oct Nov Dec Safe: May 6 Protect by: Nov 1

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 6 Nov 1 179 days
Cautious Apr 27 Oct 27 183 days
Average year Apr 23 Oct 22 182 days
Optimistic Apr 15 Oct 16 184 days
Aggressive (risky) Apr 6 Oct 7 184 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±30 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.

⚠️
Is the growing season changing?

Yes — growing seasons are getting shorter here (about 2.8 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.

Gardening Difficulty Score

61 Good
Frost Timing Risk
10.0/10
Drought Risk
3.5/10
Soil Difficulty
0.0/10
Altitude Challenge
0.0/10
Climate Shift
10.0/10
Rainfall Challenge
0.0/10

Allen County offers good growing conditions. A little planning around frost dates goes a long way.

Zone 6a Frost Countdown
--
Loading...
Last Frost: Apr 23 First Frost: Oct 22

Local Gardening Help in Allen 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 Allen County's climate and soil.

County Extension Office

Allen County Ohio State University Extension Extension Office

Phone: 614-292-6181

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.

Find Master Gardeners in OH →

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.

Request a Soil Test →

Services Available in Allen County

Soil testing Pest diagnostics Master Gardener hotline
Finding local nurseries & garden centers in Allen County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Allen 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 Allen County OH" or "garden center Allen 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 Allen County OH" or check your extension office and local parks department. Facebook groups like "Allen County Gardeners" or "Ohio 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.

After Squash (Summer) (harvest ends Aug 27) 56 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d
After Spinach (harvest ends Jul 30) 84 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d
After Beets (harvest ends Jul 16) 98 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d
After Snap Peas (harvest ends Aug 27) 56 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d
After Melon (harvest ends Sep 3) 49 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Crocus 10-20d Hyacinths 14-28d
After Eggplant (harvest ends Sep 17) 35 days until frost
Radish 22-35d Lettuce 30-60d Crocus 10-20d Hyacinths 14-28d Tulips 15-30d
Show 6 more succession options
After Corn (harvest ends Aug 20) 63 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d
After Green Beans (harvest ends Aug 13) 70 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d
After Cabbage (harvest ends Aug 20) 63 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d
After Okra (harvest ends Aug 27) 56 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d
After Sweet Corn (harvest ends Aug 6) 77 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d
After Broccoli (harvest ends Aug 6) 77 days until frost
Radish 22-35d Lettuce 30-60d Zucchini 45-60d Basil 50-75d Cucumber 50-70d

Sunlight & Day Length in Delphos

Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.

Quick context: Day length triggers flowering in many crops. Some need short days (sweet potatoes), some long (most flowers), and some are day-neutral (most modern tomatoes). Delphos's latitude determines which varieties fit your beds.

Longest Day

14.9 hours

Summer solstice daylight

Shortest Day

9.1 hours

Winter solstice daylight

Peak Sun Hours

9.4 hr/day peak (summer)

Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.

14hr 12hr 2h 6h 9h 13h 16h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight hours (sunrise to sunset) Peak sun hours (direct sunlight after cloud cover) ▪ Gold zone = long day (14+ hr) ▪ Blue zone = short day (<12 hr)

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
MonthDaylight HoursPeak Sun HoursDay Length
January 9.4 hr 3.6 hr Short day
February 10.4 hr 4.8 hr Short day
March 11.7 hr 5.6 hr Short day
April 13.1 hr 6.5 hr Neutral
May 14.3 hr 8.4 hr Long day
June 14.9 hr 9.2 hr Long day
July 14.6 hr 9.4 hr Long day
August 13.6 hr 8.6 hr Neutral
September 12.3 hr 7 hr Neutral
October 10.9 hr 5.7 hr Short day
November 9.7 hr 4.1 hr Short day
December 9.1 hr 3.4 hr Short day

Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.

Soil Temperature & Composting in Delphos

Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.

For new gardeners: Soil temperature predicts plant emergence better than calendar dates. Delphos'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

Jun

Microbial activity peaks when soil is warm.

Active Composting

6 months

Solid season. Piles go dormant in winter.

60°F 70°F 10° 30° 50° 70° 90° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
4" depth 8" depth - - - 60°F (corn, beans) - - - 70°F (tomatoes, peppers)
View detailed monthly data
MonthSoil 4" DeepSoil 8" DeepCompost ActivityTime to Finish
Jan 21°F 33°F ❄️ Dormant ~36 weeks
Feb 24°F 29°F ❄️ Dormant ~36 weeks
Mar 33°F 35°F ❄️ Dormant ~36 weeks
Apr 45°F 45°F 🐢 Slow ~24 weeks
May 58°F 55°F ♻️ Active ~14 weeks
Jun 71°F 64°F 🔥 Peak ~8 weeks
Jul 78°F 72°F 🔥 Peak ~8 weeks
Aug 79°F 73°F 🔥 Peak ~8 weeks
Sep 72°F 69°F 🔥 Peak ~8 weeks
Oct 57°F 59°F ♻️ Active ~14 weeks
Nov 44°F 49°F 🐢 Slow ~24 weeks
Dec 32°F 38°F ❄️ Dormant ~36 weeks

Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.

Pest & Disease Pressure in Delphos

Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.

Why this matters: Pest pressure is a function of climate, not effort. Delphos'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

5.1 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

6 / 10

Moderate — watch for mildew and blight during wet periods.

Seasonal Risk

Spring Low
Summer High
Fall Low
Winter Low
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids Moderate May, Jun, Jul, Aug
Japanese beetles Moderate Jun, Jul, Aug
Squash bugs Moderate Jun, Jul, Aug
Tomato hornworms Low Jul, Aug
Cabbage loopers Low May, Jun, Jul, Aug
Slugs Low Apr, May, Jun
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
  • Watch for powdery mildew, damping off, gray mold — common in your climate

Cover Crops for Delphos

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: You don't need a farm to use cover crops. A 4x8 raised bed accepts cover crops just as well as a half-acre. Delphos's climate determines the calendar; the principle is universal.

Spring Cover Crops (3 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat May 1 Aug 27 — Rapid growth, attracts pollinators, suppresses weeds
Sorghum-sudan grass Apr 30 Aug 20 — Massive biomass, breaks compaction, suppresses nematodes
White clover Mar 28 Aug 20 ✓ Yes Living mulch, fixes nitrogen, permanent ground cover
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
Crop Plant By Terminate N-Fixing Soil Benefit
Sunflowers May 5 Oct 8 — 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 20 Apr 2 ✓ Yes Fixes nitrogen, good for heavy clay soils
Daikon radish Sep 5 Apr 2 — Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Jul 30 Apr 9 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Sep 11 Apr 9 — Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jul 20 Apr 2 — Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jul 19 Apr 2 — Erosion control, weed suppression, good biomass

Wind & Microclimate in Delphos

Quick context: Pollinators avoid windy days. Delphos's 9.1 mph average wind isn't enough to stop bees and butterflies — but plant fruiting crops (tomatoes, peppers, squash) in protected microclimates and you'll see noticeably better fruit set.

Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.

Seasonal Wind Speed

Spring: 11 mph   Summer: 10 mph

Fall: 10 mph   Winter: 11 mph

Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.

Windbreak Benefit

5.1/10

Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.

Frost Pocket Risk

Low

Relatively flat terrain (181 ft range). Frost pocket risk is minimal — garden placement is flexible.

Rainwater Harvesting in Delphos

How much water you can collect, when to collect it, and what size system you need for your garden.

What this means for you: Most gardens use 0.5-1 gallon per square foot per week in summer. Delphos's 42" annual rainfall is enough to cover most needs if you can capture it. Rain barrels under downspouts are the simplest entry point.

Annual Collection

20,235 gal

Per 1,000 sq ft of roof area (at 80% collection efficiency)

Recommended Setup

6 rain barrels (55 gal each)

For a typical 500 sq ft garden. Serious collectors: consider a 1,500 gal tank.

Legal Status

Unrestricted

Rainwater harvesting is fully legal in your state with no restrictions.

Best Collection Months

May, Jun, Jul, Aug

Highest rainfall months — your barrels will fill up quickly during these months.

Months to Draw From Storage

Jan, Feb, Dec

Dry months when you'll rely on stored water — size your storage for this gap.

Rainwater collection tips for your area
  • Your county receives approximately 40.6 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 20,235 gallons annually
  • Rainwater harvesting is fully legal in your state
  • Stock up on stored water before your dry season (Jan, Feb, Dec)
  • Use a first-flush diverter to keep roof debris out of your collection

🥬 Vegetables to Grow in Delphos

107 vegetables matched to Zone 6a with planting dates calibrated for Delphos.

Show all 107 vegetables with dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Mar 19 Apr 30 May 7 — Jul 30 – Sep 3 80–100
Amaranth Feb 26 Apr 30 May 7 — Aug 6 – Sep 24 90–120
Arugula Mar 19 Apr 9 Apr 23 Aug 13 May 28 – Jul 30 30–50
Asparagus — — May 7 — — 730–1095
Beets — Apr 9 — Aug 13 Jun 4 – Jul 2 50–70
Belgian Endive Mar 19 Apr 9 Apr 23 Aug 13 Aug 13 – Oct 8 110–150
Bitter Melon Feb 26 Apr 30 May 7 — Jul 9 – Aug 20 60–90
Black Beans — Apr 30 — — Jul 30 – Sep 17 90–120
Bok Choy Mar 19 Apr 9 Apr 23 Aug 13 Jun 4 – Jul 9 40–60
Broccoli Mar 19 Apr 9 Apr 23 Aug 13 Jun 25 – Aug 6 60–90
Broccoli Rabe Mar 19 Apr 9 Apr 23 Aug 13 Jun 4 – Jul 9 40–60
Brussels Sprouts Mar 19 Apr 9 Apr 23 Aug 13 Jul 23 – Sep 17 90–130
Butternut Squash Mar 19 Apr 30 May 7 — Aug 6 – Sep 10 85–110
Cabbage Mar 19 Apr 9 Apr 23 Aug 13 Jun 25 – Aug 20 60–100
Calabash Feb 26 Apr 30 May 7 — Jul 30 – Sep 24 80–120
Carrots — Apr 9 — Aug 13 Jun 11 – Jul 16 60–80
Cauliflower Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Aug 20 55–100
Celeriac Mar 19 Apr 9 Apr 23 Aug 13 Aug 6 – Sep 10 100–120
Celery Mar 19 Apr 9 Apr 23 Aug 13 Jul 16 – Sep 10 80–120
Celtuce Mar 19 Apr 9 Apr 23 Aug 13 Jun 25 – Aug 6 60–90
Chard Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Aug 6 50–60
Chickpeas Mar 19 Apr 9 Apr 23 Aug 13 Jul 16 – Aug 27 80–110
Chicory Mar 19 Apr 9 Apr 23 Aug 13 Jun 25 – Aug 6 60–85
Chinese Cabbage Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Jul 16 50–70
Christmas Lima Beans Feb 26 Apr 30 May 7 — Jul 30 – Sep 3 80–100
Collard Greens Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Aug 20 55–75
Corn — Apr 30 — — Jul 2 – Aug 27 60–100
Cowpeas — Apr 30 — — Jul 2 – Aug 13 60–90
Cress Mar 19 Apr 9 Apr 23 Aug 13 May 7 – May 28 14–21
Crookneck Squash Mar 19 Apr 30 May 7 — Jun 25 – Jul 23 45–60
Crosne — Apr 9 — Aug 13 Sep 10 – Oct 22 150–200
Cucumber Mar 19 Apr 30 May 7 — Jul 2 – Aug 27 50–70
Daikon — Apr 9 — Aug 13 Jun 4 – Jul 2 50–70
Delicata Squash Mar 19 Apr 30 May 7 — Jul 30 – Sep 3 80–100
Edamame — Apr 30 — — Jul 16 – Aug 27 75–100
Eggplant Feb 12 Apr 30 May 7 — Jul 16 – Sep 17 65–85
Endive Mar 19 Apr 9 Apr 23 Aug 13 Jun 11 – Jul 16 45–65
Escarole Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Jul 16 50–70
Fava Beans Mar 19 Apr 9 Apr 23 Aug 13 Jul 9 – Aug 20 75–100
Fennel Feb 26 Apr 30 May 7 — Jul 9 – Aug 20 60–90
Garlic — — — Sep 10 Dec 10 – Mar 25 90–240
Green Beans — Apr 30 — — Jun 25 – Aug 20 50–65
Horseradish — — May 7 — Sep 10 – Nov 19 120–180
Hot Peppers Feb 12 Apr 30 May 7 — Jul 16 – Oct 22 70–120
Hubbard Squash Mar 19 Apr 30 May 7 — Aug 20 – Sep 24 100–120
Kabocha Mar 19 Apr 30 May 7 — Aug 6 – Sep 3 85–100
Kai Lan Mar 19 Apr 9 Apr 23 Aug 13 Jun 11 – Jul 9 45–60
Kale Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Aug 13 50–70
Kidney Beans — Apr 30 — — Jul 30 – Sep 3 85–110
Kohlrabi Mar 19 Apr 9 Apr 23 Aug 13 Jun 11 – Jul 16 45–65
Komatsuna Mar 19 Apr 9 Apr 23 Aug 13 May 28 – Jul 2 35–50
Leeks Mar 19 Apr 9 Apr 23 Aug 13 Jul 23 – Oct 8 90–150
Lentils Mar 19 Apr 9 Apr 23 Aug 13 Jul 16 – Aug 27 80–110
Lettuce Mar 19 Apr 9 Apr 23 Aug 13 May 28 – Aug 6 30–60
Lima Beans — Apr 30 — — Jul 2 – Aug 13 60–90
Loofah Feb 26 Apr 30 May 7 — Aug 20 – Oct 22 100–150
Luffa Feb 26 Apr 30 May 7 — Aug 6 – Oct 22 90–150
Mache Mar 19 Apr 9 Apr 23 Aug 13 Jun 4 – Jul 9 40–60
Melon Mar 19 Apr 30 May 7 — Jul 16 – Sep 3 70–100
Microgreens Mar 19 Apr 9 Apr 23 Aug 13 Apr 30 – May 28 7–21
Mitsuba Mar 19 Apr 9 Apr 16 Aug 13 Jun 11 – Aug 6 50–70
Mizuna Mar 19 Apr 9 Apr 23 Aug 13 May 28 – Jun 25 30–45
Mustard Greens Mar 19 Apr 9 Apr 23 Aug 13 May 28 – Jul 30 30–50
Napa Cabbage Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Jul 23 55–75
New Zealand Spinach Feb 26 Apr 30 May 7 — Jul 2 – Jul 30 55–70
Okra Feb 26 Apr 30 May 7 — Jul 2 – Aug 27 50–65
Onion Mar 19 Apr 9 Apr 23 Aug 13 Jul 23 – Sep 10 90–120
Pac Choi Mar 19 Apr 9 Apr 23 Aug 13 Jun 4 – Jul 2 40–55
Parsnip — Apr 9 — Aug 13 Jul 23 – Sep 3 100–130
Patty Pan Squash Mar 19 Apr 30 May 7 — Jun 25 – Jul 23 45–60
Peas Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Aug 13 55–70
Peppers Feb 12 Apr 30 May 7 — Jul 9 – Sep 17 60–90
Pole Beans Feb 26 Apr 30 May 7 — Jul 2 – Aug 27 55–70
Potatoes Feb 26 Apr 30 May 7 — Jul 16 – Sep 24 70–120
Pumpkin Mar 19 Apr 30 May 7 — Aug 6 – Sep 24 85–120
Purslane Mar 19 Apr 9 Apr 23 Aug 13 Jun 4 – Jul 9 40–60
Radicchio Mar 19 Apr 9 Apr 23 Aug 13 Jun 25 – Jul 30 60–80
Radish — Apr 9 — Aug 13 May 7 – May 28 22–35
Rhubarb — — May 14 — — 365–730
Romanesco Mar 19 Apr 9 Apr 23 Aug 13 Jul 9 – Aug 20 75–100
Rutabaga — Apr 9 — Aug 13 Jul 2 – Aug 6 80–100
Salsify — Apr 9 — Aug 13 Jul 23 – Sep 3 100–130
Savoy Cabbage Mar 19 Apr 9 Apr 23 Aug 13 Jul 2 – Aug 27 70–110
Scallions Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Jul 16 50–70
Scarlet Runner Beans Feb 26 Apr 30 May 7 — Jul 9 – Aug 13 60–80
Shallot Mar 19 Apr 9 Apr 23 Aug 13 Jul 23 – Sep 10 90–120
Shiso Mar 5 Apr 30 May 7 — Jul 2 – Aug 27 50–70
Snap Peas Feb 26 Apr 30 May 7 — Jul 2 – Aug 27 55–70
Snow Peas Mar 19 Apr 9 Apr 23 Aug 13 Jun 18 – Aug 13 50–65
Soybeans — Apr 30 — — Jul 23 – Sep 17 80–120
Spaghetti Squash Mar 19 Apr 30 May 7 — Aug 6 – Sep 3 85–100
Spinach Mar 19 Apr 9 Apr 23 Aug 13 May 28 – Jul 30 35–50
Squash (Summer) Mar 19 Apr 30 May 7 — Jun 25 – Aug 27 45–65
Squash (Winter) Mar 19 Apr 30 May 7 — Jul 30 – Sep 24 80–120
Sunchoke — — May 7 — Aug 27 – Oct 22 110–150
Sweet Corn — Apr 30 — — Jul 2 – Aug 13 60–90
Sweet Potatoes Feb 26 Apr 30 May 7 — Aug 6 – Sep 24 90–120
Tatsoi Mar 19 Apr 9 Apr 23 Aug 13 May 28 – Jul 2 35–50
Tomatillo Feb 26 Apr 30 May 7 — Jul 9 – Sep 17 60–85
Tomatoes Feb 26 Apr 30 May 7 — Jul 9 – Sep 17 60–85
Turnip — Apr 9 — Aug 13 May 21 – Jun 25 40–60
Watercress Mar 19 Apr 9 Apr 23 Aug 13 Jun 4 – Jul 9 40–60
Watermelon Mar 19 Apr 30 May 7 — Jul 16 – Sep 3 70–100
Wax Beans — Apr 30 — — Jun 25 – Aug 20 50–65
Winter Melon Feb 26 Apr 30 May 7 — Aug 6 – Sep 24 90–120
Yard Long Beans Feb 26 Apr 30 May 7 — Jul 2 – Aug 13 55–80
Zucchini Mar 19 Apr 30 May 7 — Jun 25 – Aug 20 45–60

🍓 Fruits to Grow in Delphos

27 fruits matched to Zone 6a with planting dates calibrated for Delphos.

Show all 27 fruits with dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries — — May 14 — Aug 13 – Nov 26 90–180
Aronia — — May 14 — — 730–1095
Blackberries — — May 14 — — 365–730
Blueberries — — May 14 — — 730–1095
Boysenberries — — May 14 — — 365–730
Cantaloupe — — May 14 — Jul 23 – Aug 27 70–90
Che Fruit — — May 14 — — 1095–1825
Cranberries — — May 14 — — 730–1095
Currants — — May 14 — — 730–1095
Elderberries — — May 14 — — 730–1095
Goji Berries — — May 14 — — 730–1095
Gooseberries — — May 14 — — 730–1095
Grapes — — May 14 — — 730–1095
Ground Cherry — — May 14 — Jul 23 – Sep 17 65–80
Hardy Kiwi — — May 14 — — 1095–1825
Haskaps — — May 14 — — 730–1095
Honeydew — — May 14 — Aug 6 – Sep 17 80–110
Jostaberry — — May 14 — — 730–1095
Lingonberries — — May 14 — — 730–1095
Medlar — — May 14 — — 1095–1825
Mulberries — — May 14 — — 730–1825
Pawpaw — — May 14 — — 1095–2555
Persimmon — — May 14 — — 1095–2555
Quince — — May 14 — — 1095–1825
Raspberries — — May 14 — — 365–730
Serviceberries — — May 14 — — 730–1095
Strawberries — — May 14 — Aug 13 – Nov 26 90–365

🌿 Herbs to Grow in Delphos

35 herbs matched to Zone 6a with planting dates calibrated for Delphos.

Show all 35 herbs with dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Mar 19 Apr 9 Apr 16 Aug 13 — 365–730
Anise Mar 19 Apr 9 Apr 16 Aug 13 Jul 16 – Oct 1 90–120
Basil Mar 5 Apr 30 May 7 — Jul 2 – Sep 3 50–75
Bee Balm — — Apr 30 — Jul 30 – Oct 15 90–120
Borage Mar 19 Apr 9 Apr 16 Aug 13 Jun 11 – Jul 30 50–60
Caraway Mar 19 Apr 9 Apr 16 Aug 13 — 365–450
Catnip — — Apr 30 — Jul 2 – Sep 3 60–80
Chamomile Mar 19 Apr 9 Apr 16 Aug 13 Jun 18 – Aug 27 60–90
Chervil Mar 19 Apr 9 Apr 16 Aug 13 May 28 – Jul 30 40–60
Chives — — Apr 30 — Jul 2 – Sep 10 60–90
Cilantro Mar 19 Apr 9 Apr 16 Aug 13 May 28 – Jul 30 40–60
Comfrey — — Apr 30 — Jul 2 – Sep 10 60–90
Cumin Mar 19 Apr 9 Apr 16 Aug 13 Jul 30 – Oct 1 100–120
Dill Mar 19 Apr 9 Apr 16 Aug 13 May 28 – Jul 30 40–60
Epazote Mar 5 Apr 30 May 7 — Jun 25 – Aug 20 45–60
Fennel (herb) Mar 19 Apr 9 Apr 16 Aug 13 Jun 18 – Aug 27 60–90
Feverfew — — Apr 30 — Jul 30 – Oct 15 90–120
Garlic Chives — — Apr 30 — Jul 2 – Sep 10 60–90
Horehound — — Apr 30 — Jul 16 – Sep 10 75–90
Hyssop — — Apr 30 — Jul 9 – Sep 10 70–90
Lemon Balm — — Apr 30 — Jul 2 – Aug 20 60–70
Lemon Thyme — — Apr 30 — Jul 9 – Sep 10 70–90
Lovage — — Apr 30 — Jul 9 – Sep 10 70–90
Marjoram — — Apr 30 — Jul 2 – Sep 10 60–90
Mint — — Apr 30 — Jul 2 – Sep 10 60–90
Oregano — — Apr 30 — Jul 2 – Sep 10 60–90
Parsley Mar 19 Apr 9 Apr 16 Aug 13 Jun 18 – Aug 20 60–80
Rue — — Apr 30 — Jul 9 – Sep 10 70–90
Sage — — Apr 30 — Jul 16 – Sep 10 75–90
Savory — — Apr 30 — Jun 25 – Aug 20 50–70
Sorrel Mar 19 Apr 9 Apr 16 Aug 13 May 28 – Jul 30 40–60
Tarragon — — Apr 30 — Jul 2 – Sep 10 60–90
Thai Basil Mar 5 Apr 30 May 7 — Jul 2 – Sep 3 50–75
Thyme — — Apr 30 — Jul 9 – Sep 10 70–90
Valerian — — Apr 30 — Sep 3 – Nov 12 120–180

🌸 Flowers to Grow in Delphos

53 flowers matched to Zone 6a with planting dates calibrated for Delphos.

Show all 53 flowers with dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Mar 5 Apr 23 Apr 23 — Jun 18 – Sep 24 60–75
Alliums — — — Sep 10 Oct 8 – Nov 5 28–42
Anemones Mar 26 — Apr 23 — May 28 – Jun 25 90–120
Astilbe Feb 19 — Apr 30 — Jul 9 – Sep 17 70–100
Bachelor's Button Mar 12 Mar 26 Apr 23 Sep 10 Jun 25 – Sep 10 60–90
Begonias Feb 12 — Apr 30 — Jul 9 – Oct 8 70–90
Black-eyed Susan Feb 19 Apr 23 Apr 30 — Jul 16 – Oct 29 60–80
Bleeding Hearts Feb 19 — Apr 30 — Jun 25 – Jul 30 60–90
Calendula Mar 12 Mar 26 Apr 23 — Jun 11 – Sep 10 50–70
California Poppy — Mar 26 — — Jun 4 – Jul 16 60–90
Celosia Mar 19 Apr 30 Apr 30 — Jul 2 – Oct 15 60–90
Columbine Feb 19 May 7 May 7 — Jul 2 – Aug 6 70–100
Coreopsis Feb 19 Apr 30 Apr 30 — Jul 9 – Oct 29 60–80
Cosmos Mar 26 Apr 23 Apr 23 — Jul 2 – Oct 8 60–90
Crocus — — — Sep 10 Jul 30 – Aug 20 10–20
Daffodils — — — Sep 10 Aug 6 – Aug 27 20–40
Dahlias Mar 26 Apr 30 Apr 30 — Jul 16 – Oct 29 70–120
Daylily Feb 19 — Apr 30 — Jul 16 – Oct 29 60–90
Dianthus Feb 26 Mar 26 Apr 9 — May 28 – Aug 27 60–80
Echinacea (Purple Coneflower) Feb 19 May 7 May 7 — Jul 30 – Nov 5 70–90
Foxglove Feb 19 Apr 30 Apr 30 — Jun 25 – Jul 30 80–120
Gaillardia (Blanket Flower) Mar 5 Apr 30 Apr 30 — Jul 9 – Nov 12 70–100
Geraniums Feb 12 — Apr 30 — Jul 9 – Oct 8 70–100
Gladiolus — Apr 23 Apr 23 — Jul 9 – Oct 22 70–100
Hostas Feb 12 — Apr 30 — Jul 16 – Oct 29 60–90
Hyacinths — — — Sep 10 Aug 27 – Sep 17 14–28
Hydrangeas Feb 12 — Apr 30 — Jul 9 – Oct 15 90–150
Impatiens Feb 26 — Apr 30 — Jul 9 – Oct 15 60–75
Irises — Division Apr 30 — Jun 25 – Jul 23 60–100
Larkspur — Mar 26 — — Jun 4 – Jul 30 60–90
Lavender Feb 12 — May 7 — Jul 16 – Sep 10 90–120
Lilies — Division Apr 30 — Jul 9 – Oct 15 70–120
Lobelia Feb 19 — Apr 9 — Jun 4 – Aug 27 70–80
Lupine Feb 19 Apr 30 Apr 30 — Jun 25 – Jul 30 75–100
Marigolds Mar 12 Apr 30 Apr 30 — Jun 25 – Sep 24 50–70
Nasturtium Mar 26 Apr 30 Apr 30 — Jun 25 – Oct 15 55–65
Pansy Feb 12 — Apr 23 Aug 27 Jun 18 – Aug 20 70–90
Peonies — Division Apr 30 — Jul 2 – Aug 6 90–120
Petunia Feb 26 — Apr 30 — Jul 9 – Oct 15 70–90
Phlox Feb 19 Apr 30 Apr 30 — Jul 9 – Oct 1 80–110
Portulaca Mar 19 Apr 30 Apr 30 — Jun 18 – Oct 1 50–70
Ranunculus Mar 12 — Apr 23 — Jun 4 – Jul 2 90–120
Roses Feb 12 — Apr 30 — Jul 9 – Oct 29 90–180
Salvia Feb 19 — Apr 30 — Jul 9 – Oct 15 70–90
Sedum (Stonecrop) Feb 19 — Apr 30 — Aug 20 – Nov 5 60–90
Snapdragon Feb 12 Apr 2 Apr 23 — Jul 2 – Sep 10 70–100
Sunflower Apr 2 Apr 30 Apr 30 — Jul 23 – Oct 15 70–100
Sweet Alyssum Mar 5 Apr 2 Apr 23 — Jun 4 – Aug 13 45–60
Sweet Pea Mar 12 Mar 19 Apr 23 — Jul 9 – Sep 17 65–85
Tulips — — — Sep 10 Aug 20 – Sep 17 15–30
Vinca (Annual) Feb 12 — Apr 30 — Jul 9 – Oct 15 70–90
Yarrow Feb 19 Apr 23 Apr 30 — Jul 9 – Oct 29 60–90
Zinnia Mar 26 Apr 30 Apr 30 — Jul 9 – Oct 15 60–70

Monthly Planting Guide for Delphos

ZIP Codes in Delphos

Click any ZIP to see its specific frost, soil, and climate measurements (some ZIPs differ noticeably from the town aggregate):