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When to plant Ranunculus in Pendleton, KY

Pendleton's 199-day season only supports one Ranunculus planting per year. Sow between April 10 and April 24 for the best chance at full maturity before October 26.

When to Plant Ranunculus in Pendleton, KY

Henry County, Kentucky Zone 6b June

June in the garden — Henry County, Kentucky

A quick June briefing for Henry County, Kentucky gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 10
Avg. first frost October 26
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
  1. Harvest ranunculus as they ripen

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

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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.

Pendleton, Kentucky is in USDA Zone 6b. The average last spring frost is April 10 and the first fall frost is October 26, giving you a growing season of approximately 199 days.

At an elevation of 1,436 feet, Henry County receives approximately 51.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Ranunculus during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Ranunculus root diseases.

Bulb Blooms in Spring Pollinator-friendly Good for cutting
Pendleton, KY (Zone 6b) Moderate season
199 days
Last Spring Frost April 10
199 growing days
First Fall Frost October 26

Pendleton Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7

Drainage

Well Drained

Ranunculus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (135 days to spare)
Start indoors: Feb 21 Transplant: Apr 4 🌸 Bloom: May 9 – Jun 6
Recommended (50%) ✓ Fits season (136 days to spare)
Start indoors: Feb 27 Transplant: Apr 10 🌸 Bloom: May 15 – Jun 12
Safe Start (90%) ✓ Fits season (128 days to spare)
Start indoors: Mar 21 Transplant: May 2 🌸 Bloom: Jun 6 – Jul 4

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 Pendleton

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

Soil pH

Your soil pH (5.7–7.0) overlaps with Ranunculus's range (6.0–6.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.1%). Annual compost additions will help Ranunculus.

How to Plant Ranunculus

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

Ranunculus Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 4.7" 0" ❄️ Dormant
Feb 4.6" 0" ❄️ Dormant
Mar 4.7" 0" ❄️ Dormant
Apr 4.3" 4.1" 0.2" 💧 Light watering
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.1" 0" ✅ Rainfall sufficient
Aug 4.3" 4.8" 0" ✅ Rainfall sufficient
Sep 4.3" 3.7" 0.6" 💧 Light watering
Oct 4.3" 3.5" 0.8" 💧 Light watering
Nov 4" 0" ❄️ Dormant
Dec 3.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Henry 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 ~1,680 GDD — county provides 3,184 GDD Excellent fit

Ranunculus Planting Timeline — Pendleton, KY

Ranunculus Planting Calendar

Activity When Date Range
Start Indoors February 27 Feb 27 – Mar 13
Transplant Outdoors April 10 Apr 10 – Apr 24
Bloom May 15 May 15 – Jun 12

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

199 days in Henry County

Growing Tips for Ranunculus in Pendleton

Direct sow Ranunculus outdoors after April 10 in Henry 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 →

When should I plant Ranunculus in Pendleton, KY?

In Pendleton, KY, plant Ranunculus after the last frost (around April 10) and before the first frost (around October 26). Best results when soil holds above 50°F.

What growing zone is Pendleton, KY for Ranunculus?

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

Can Ranunculus grow in Pendleton's climate?

Yes — Ranunculus grows well in Pendleton's temperate climate. Pendleton averages a 199-day frost-free season, with last frost around April 10 and first frost around October 26.

🌱

Your Henry County Garden Planner — Free

A 22-page printable planner built for Henry 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 Henry County, KY. Local conditions may vary. Last updated: June 2026.