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When to Plant Ranunculus in Perry County, OH

Perry County, Ohio Zone 6a July

Your July game plan for Perry County, Ohio

We've pulled the most time-sensitive tasks for Perry County, Ohio this July and put them front and centre. Tackle them in order.

Avg. last frost April 27
Avg. first frost October 19
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14.6 hrs
  1. Collect ranunculus at their peak

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

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Persian ranunculus (Ranunculus asiaticus) produces multi-petaled blooms that rival roses in intricacy and lushness, in a warm palette of reds, oranges, yellows, pinks, and whites. A cornerstone of the specialty cut flower industry, ranunculus produces long, strong stems ideal for bouquets and arrangements. As a cool-season corm, it performs best in the mild shoulder seasons — planted in fall in warm-winter zones, or in early spring where summers arrive quickly. The 'Elegance', 'Amandine', and 'Tecolote' strains are favorites for both home gardens and commercial growers.

Perry County, Ohio is in USDA Zone 6a. The average last spring frost is April 27 and the first fall frost is October 19, giving you a growing season of approximately 175 days.

At an elevation of 664 feet, Perry County receives approximately 39.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Ranunculus during the growing season.

Bulb Blooms in Spring Pollinator-friendly Good for cutting
Perry County, OH (Zone 6a) Moderate season
175 days
Last Spring Frost April 27
175 growing days
First Fall Frost October 19

Perry County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.9

Drainage

Well Drained

Ranunculus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (107 days to spare)
Start indoors: Mar 10 Transplant: Apr 21 🌸 Bloom: Jun 2 – Jun 30
Recommended (50%) ✓ Fits season (105 days to spare)
Start indoors: Mar 16 Transplant: Apr 27 🌸 Bloom: Jun 8 – Jul 6
Safe Start (90%) ✓ Fits season (102 days to spare)
Start indoors: Apr 1 Transplant: May 13 🌸 Bloom: Jun 24 – Jul 22

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Perry County

How your county's soil matches Ranunculus's growing requirements.

Soil pH

Your soil pH (5.7–6.9) overlaps with Ranunculus's range (6.0–6.5), though not a perfect match.

Soil Texture

The silt loam soil in Perry County is excellent for Ranunculus — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.6%) — Ranunculus will thrive.

How to Plant Ranunculus

2"
Planting Depth
6"
Between Plants
8"
Between Rows

Ranunculus Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 74 gal / 100 sq ft

Monthly Watering Guide for Ranunculus

Ranunculus needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Ranunculus Needs Rainfall You Supplement Action
Jan 1.4" 0" ❄️ Dormant
Feb 1.8" 0" ❄️ Dormant
Mar 2.4" 0" ❄️ Dormant
Apr 4.3" 3.6" 0.7" 💧 Light watering
May 4.3" 5.3" 0" ✅ Rainfall sufficient
Jun 4.3" 5.4" 0" ✅ Rainfall sufficient
Jul 4.3" 4.7" 0" ✅ Rainfall sufficient
Aug 4.3" 4.2" 0.1" 💧 Light watering
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 2.8" 1.5" 💧 Light watering
Nov 2.4" 0" ❄️ Dormant
Dec 2.1" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Perry County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Ranunculus Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Ranunculus needs ~1,838 GDD — county provides 3,062 GDD Excellent fit

Ranunculus Planting Timeline — Perry County, OH

Ranunculus Planting Calendar

Activity When Date Range
Start Indoors March 16 Mar 16 – Mar 30
Transplant Outdoors April 27 Apr 27 – May 11
Bloom June 8 Jun 8 – Jul 6

Plant 2" deep · 6" apart · Rows 8" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Transplant Outdoors
May Transplant Outdoors
June Bloom
July Bloom
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

175 days in Perry County

Growing Tips for Ranunculus in Perry County

Direct sow Ranunculus outdoors after April 27 in Perry County when soil has warmed and frost danger has passed.

General growing tips

Pre-soak corms (which look like small octopus tentacles) in cool water for 2–4 hours before planting; do not over-soak. Plant with tentacles pointing downward, 1–2 inches deep and 6 inches apart. Ranunculus demand excellent drainage — they rot in soggy soil. In fall-planting zones (7+), plant October–November and allow to root through mild winter; blooms arrive in March–May. In zones 6, start corms indoors in late winter and transplant out after last frost for a late-spring bloom. Keep soil consistently moist but never waterlogged during growth. After foliage yellows (post-bloom), stop watering, let corms dry, lift them, and store in a cool dry place until replanting. In zones 8b–10b, corms can often be left in ground year-round.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Ranunculus in Perry County, OH?

Perry County is in Zone 6a with an average last frost of April 27. Plan your Ranunculus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Perry County, OH?

Perry County, Ohio is in USDA Hardiness Zone 6a. The average last spring frost is April 27 and first fall frost is October 19.

🌱

Your Perry County Garden Planner — Free

A 22-page printable planner built for Perry County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Perry County, OH. Local conditions may vary. Last updated: July 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.