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When to plant Ranunculus in Ohio County, IN

Plant Ranunculus in Ohio County during the brief April 17–May 1 window. With 185 frost-free days, fall plantings can't mature before October 19.

When to Plant Ranunculus in Ohio County, IN

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.

Ohio County, Indiana is in USDA Zone 6b. The average last spring frost is April 17 and the first fall frost is October 19, giving you a growing season of approximately 185 days.

At an elevation of 882 feet, Ohio County receives approximately 33.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Ranunculus during the growing season.

Bulb Blooms in Spring Pollinator-friendly Good for cutting
Ohio County, IN (Zone 6b) Moderate season
185 days
Last Spring Frost April 17
185 growing days
First Fall Frost October 19

Ohio County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Ranunculus Planting Timeline — Ohio County, IN

Ranunculus Planting Calendar

Activity When Date Range
Start Indoors March 6 Mar 6 – Mar 20
Transplant Outdoors April 17 Apr 17 – May 1
Bloom May 22 May 22 – Jun 19

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–6.5 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

185 days in Ohio County

Growing Tips for Ohio County

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 Ohio County, IN?

Ohio County is in Zone 6b with an average last frost of April 17. Plan your Ranunculus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ohio County, IN?

Ohio County, Indiana is in USDA Hardiness Zone 6b. The average last spring frost is April 17 and first fall frost is October 19.

When should I plant Ranunculus in Ohio County, IN?

In Ohio County, IN, plant Ranunculus after the last frost (around April 17) and before the first frost (around October 19). Best results when soil holds above 50°F.

What growing zone is Ohio County, IN for Ranunculus?

Ohio County sits in USDA Zone 6b. Ranunculus grows reliably in zones 6a through 10b, so it's a good fit here.

Can Ranunculus grow in Ohio County's climate?

Yes — Ranunculus grows well in Ohio County's temperate climate. Ohio County averages a 185-day frost-free season, with last frost around April 17 and first frost around October 19.

🌱

Your Ohio County Garden Planner — Free

A 22-page printable planner built for Ohio 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.

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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 Ohio County, IN. Local conditions may vary. Last updated: July 2026.

Sources & credits

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