Blog

When to plant Columbine in Sharp County County,

Aim to plant Columbine in Sharp County County on or after April 2; the window stays open through April 23. Sharp County County's 221-day frost-free season gives you enough for a full main crop and a short fall succession.

When to Plant Columbine in Sharp County, AR

Sharp County, Arkansas Zone 7b June

June to-do list for Sharp County, Arkansas

Your Sharp County, Arkansas garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.

Avg. last frost March 26
Avg. first frost November 2
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 14.4 hrs
  1. It's harvest week for columbine

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Instant PDF download. No spam, unsubscribe any time.

Wild Columbine (Aquilegia canadensis) is a graceful native perennial of eastern North America, producing distinctive nodding flowers with spurred red-and-yellow petals that are irresistible to hummingbirds and native bees in spring. Its blue-green, fernlike foliage remains attractive long after flowering. Garden hybrid columbines (A. x hybrida) extend the color palette to the full spectrum and are equally adaptable. Short-lived by perennial standards (3–4 years per plant), but prolific self-seeders that perpetuate themselves and even hybridize freely in the garden, creating ever-evolving color combinations. An ideal woodland edge and cottage garden plant.

Sharp County, Arkansas is in USDA Zone 7b. The average last spring frost is March 26 and the first fall frost is November 2, giving you a growing season of approximately 221 days.

At an elevation of 674 feet, Sharp County receives approximately 50.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Columbine during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Columbine root diseases.

Perennial Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting
Sharp County, AR (Zone 7b) Long season
221 days
Last Spring Frost March 26
221 growing days
First Fall Frost November 2

Sharp County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7

Drainage

Well Drained

Columbine Planting Risk Windows

Early Start (70% safe) ✓ Fits season (137 days to spare)
Start indoors: Jan 17 Transplant: Mar 21 🌸 Bloom: May 9 – Jun 13
Recommended (50%) ✓ Fits season (130 days to spare)
Start indoors: Jan 29 Transplant: Apr 2 🌸 Bloom: May 21 – Jun 25
Safe Start (90%) ✓ Fits season (133 days to spare)
Start indoors: Feb 18 Transplant: Apr 22 🌸 Bloom: Jun 10 – Jul 15

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 Sharp County

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

Soil pH

Your soil pH (5.3–7.0) overlaps with Columbine's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Columbine.

How to Plant Columbine

0.1"
Planting Depth
12"
Between Plants
18"
Between Rows

Succession Planting Columbine

3
successive plantings in your 221-day season

Sow every 8 weeks. Last sowing by Jul 25 to harvest before frost.

Columbine 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 94 gal / 100 sq ft

Monthly Watering Guide for Columbine

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

Month Columbine Needs Rainfall You Supplement Action
Jan 3.8" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 4.3" 4.5" 0" ✅ Rainfall sufficient
Apr 4.3" 4.2" 0.1" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 4.4" 0" ✅ Rainfall sufficient
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 4.3" 0" ✅ Rainfall sufficient
Sep 4.3" 3.9" 0.4" 💧 Light watering
Oct 4.3" 2.8" 1.5" 💧 Light watering
Nov 4.3" 4.2" 0.1" 💧 Light watering
Dec 4.1" 0" ❄️ Dormant

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

Columbine 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.

Columbine needs ~1,360 GDD — county provides 3,536 GDD Excellent fit

Columbine Planting Timeline — Sharp County, AR

Columbine Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 – Feb 12
Transplant Outdoors April 2 Apr 2 – Apr 16
Direct Sow April 2 Apr 2 – Apr 23
Bloom May 21 May 21 – Jun 25

Plant 0.1" deep · 12" apart · Rows 18" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

221 days in Sharp County

Growing Tips for Columbine in Sharp County

Direct sow Columbine outdoors after March 26 in Sharp County when soil has warmed and frost danger has passed.

General growing tips

Start seeds indoors 8–10 weeks before last frost with 4–6 weeks of cold moist stratification first (mix seeds with moist perlite in a bag and refrigerate), or direct-sow outdoors in fall for natural stratification. Transplant to the garden 2–4 weeks after last frost in spring. Prefers cool, moist, well-drained soil with morning sun and afternoon shade, especially in Zones 6+. After bloom, allow seed pods to mature and scatter if you want natural self-seeding; deadhead if you want to prevent spreading. Individual plants are typically short-lived (3–5 years) but colonies persist through prolific self-seeding. Leafminers may create white tunnels in foliage — unsightly but rarely serious. Year 2+ plants flower most profusely.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Columbine in Sharp County, AR?

Sharp County is in Zone 7b with an average last frost of March 26. Plan your Columbine planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sharp County, AR?

Sharp County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is March 26 and first fall frost is November 2.

When should I plant Columbine in Sharp County, ?

In Sharp County, , plant Columbine after the last frost (around March 26) and before the first frost (around November 2). Best results when soil holds above 50°F.

What growing zone is Sharp County, for Columbine?

Sharp County sits in USDA Zone 7b. Columbine grows reliably in zones 3a through 9a, so it's a good fit here.

Can Columbine grow in Sharp County's climate?

Yes — Columbine grows well in Sharp County's temperate climate. Sharp County averages a 221-day frost-free season, with last frost around March 26 and first frost around November 2.

🌱

Your Sharp County Garden Planner — Free

A 22-page printable planner built for Sharp County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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

Sources & credits

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