When to plant Columbine in Bartholomew County County,
In Bartholomew County County, plant Columbine in spring between April 19 and May 10, once soil temps hold above 50°F. Bartholomew County County's last frost averages April 12, so time plantings around the expected last-frost window for best survival. For a fall crop, sow between and — roughly 100 days before the first frost on October 20.
When to Plant Columbine in Bartholomew County, IN
Your June planting checklist for Bartholomew County, Indiana
A quick June briefing for Bartholomew County, Indiana gardeners — what's urgent, what's next, and what can wait.
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Get columbine seeds going inside
Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.
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Bring in the columbine
If you can't use it all right away, check the food-preservation section of your planner.
Before July arrives, get these ready
- First harvests: columbine
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.
Bartholomew County, Indiana is in USDA Zone 6b. The average last spring frost is April 12 and the first fall frost is October 20, giving you a growing season of approximately 191 days.
At an elevation of 1,376 feet, Bartholomew County receives approximately 40.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Columbine during the growing season.
Bartholomew County Soil Profile
Soil Type
Silt Loam
Soil pH
6.2-7
Drainage
Well Drained
Columbine Planting Risk Windows
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 Bartholomew County
How your county's soil matches Columbine's growing requirements.
Soil pH
Your soil pH (6.2–7.0) is within Columbine's preferred range (6.0–7.0).
Soil Texture
The silt loam soil in Bartholomew County is excellent for Columbine — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.0%) — Columbine will thrive.
How to Plant Columbine
Succession Planting Columbine
Sow every 8 weeks. Last sowing by Jul 12 to harvest before frost.
Columbine Water Budget
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 | — | 2" | 0" | ❄️ Dormant |
| Feb | — | 1.9" | 0" | ❄️ Dormant |
| Mar | — | 2.7" | 0" | ❄️ Dormant |
| Apr | 4.3" | 4" | 0.3" | 💧 Light watering |
| May | 4.3" | 4.4" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 4.7" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 4.3" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 4.3" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 3.4" | 0.9" | 💧 Light watering |
| Oct | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| Nov | — | 2.8" | 0" | ❄️ Dormant |
| Dec | — | 2.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Bartholomew 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 Planting Timeline — Bartholomew County, IN
Columbine Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 8 | Feb 8 – Feb 22 |
| Transplant Outdoors | April 19 | Apr 19 – May 3 |
| Direct Sow | April 19 | Apr 19 – May 10 |
| Bloom | June 14 | Jun 14 – Jul 19 |
Plant 0.1" deep · 12" apart · Rows 18" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | — |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Bloom |
| July | Bloom |
| 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: ideal
🗺️ USDA Zone
Zone 6b
📆 Growing Season
191 days in Bartholomew County
Growing Tips for Columbine in Bartholomew County
Direct sow Columbine outdoors after April 12 in Bartholomew 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 →
Columbine in Other Locations
Frequently Asked Questions
When should I plant Columbine in Bartholomew County, IN?
Bartholomew County is in Zone 6b with an average last frost of April 12. Plan your Columbine planting based on this frost date — see the calendar above for exact timing.
What planting zone is Bartholomew County, IN?
Bartholomew County, Indiana is in USDA Hardiness Zone 6b. The average last spring frost is April 12 and first fall frost is October 20.
When should I plant Columbine in Bartholomew County County, ?
In Bartholomew County County, , plant Columbine after the last frost (around April 12) and before the first frost (around October 20). Best results when soil holds above 50°F.
What growing zone is Bartholomew County County, for Columbine?
Bartholomew County County sits in USDA Zone 6b. Columbine grows reliably in zones 3a through 9a, so it's a good fit here.
Can Columbine grow in Bartholomew County County's climate?
Yes — Columbine grows well in Bartholomew County County's temperate climate. Bartholomew County County averages a 191-day frost-free season, with last frost around April 12 and first frost around October 20.
Your Bartholomew County Garden Planner — Free
A 22-page printable planner built for Bartholomew 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.